Iis Slow Response

The time needed for the server to send back the first byte of the response to the client; Why slow time to last byte of the HTML file results in bad user experience. But the App Service Plan can't be shared with a Windows hosting plan. Sorry for the late response - the corporate wheels turn slow! We use the OfficeScan client, so the method to disable the proxy hooking is slightly different, but the end result is that the response from IIS is approx 200X better! – yuben Mar 5 '13 at 10:16. These are things we will look at in this series. Description: ----- A friend of mine had the following problem for almost 2. This makes sure only compressed response is cached in kernel. Thanks for your reply. How to: Improve the performance / speed of WordPress running in IIS To be entirely honest I am still struggling with this topic. Then you need the IIS Failed Request Trace feature. What is server response time? Server response time is the amount of time it takes for a web server to respond to a request from a browser. You should reduce your server response time under 200ms. Teaching with Moodle. CORS support site. It means the connection is closed after the request. # re: Azure VM Blues: Fighting a losing Performance Battle Just wanted to throw in my 2c after having almost exactly the same experience. 8 Effective Ways to Improve IIS 7. On-Access scan appears to cause IIS application pools to recycle? I'm working with software that has heavy use of application pools in IIS. 5 for front end and streams data from the server using WCF 4. 5 is capable of running web applications and sites blazing fast when you fine-tune some of its important performance parameters. xml seen below) upon saving the rules in the web. The monitoring can call attention to issues with the IIS system before they negatively impact the end user's experience. I removed that server from my list of DNS servers. actions · 2017-Mar-18 10:40 pm · [Windows] iis Outbound QOS. I've recently installed a Windows 2016 Server with SQL Server 2016 Standard. Please provide a response Response must be less that. I'm dealing with client spreadsheets calling the same function 160 times or more in one sheet and it takes a minute or more to return all the values. Oct 24, 2016 at 6:32AM. Make a request to Slowwly to simulate a slow response, configurable delay in millisecs. Initial Troubleshooting Steps In some cases, the source of your problem might be easily diagnosed by choosing Troubleshoot > Slow Response Times in the left navigation pane. This results in faster response times between the IIS web server and compression-enabled browsers. For IIS, check out this page for more information. Hangs can be caused by blocked ASP. NET Issues with Log Parser - Slow Performance -1. Dec 15, 2016 at 8:21AM. Teaching with Moodle. While designed to speed up browsing, if left unchecked the burgeoning folders can sometimes slow IE to a crawl or cause other unexpected behavior. Glossary of. I'm dealing with client spreadsheets calling the same function 160 times or more in one sheet and it takes a minute or more to return all the values. Is your latest ASP. Or your site needs a higher spec hosting account with more resources eg a VPS. The setup is being used as an IIS webserver with Reporting Services. Microsoft Supported & Community Downloads for IIS Microsoft downloads are fully supported with future updates, bug fixes and customer support. Official YSlow Open Source Project Website. Fancy Widgets, Sluggish Response. Really big pages sending all those chunks over a high latency connection like to Digicure are going to be slow. Capture Screen is the current IIS settings value. Thanks! You solution worked. NET MVC 5 Web App Startup to 3 Seconds. The good news, if this is the bottleneck, is that you have more control over it. However, after upgrading to windows 10 and having it around for a while, I noticed a sharp decrease in internet speed. The time needed for the server to send back the first byte of the response to the client; Why slow time to last byte of the HTML file results in bad user experience. On-Access scan appears to cause IIS application pools to recycle? I'm working with software that has heavy use of application pools in IIS. Get the Web Platform Installer. When running a scan on a website that is vulnerable to a slow HTTP DoS attack, an alert is raised that looks similar to the following one: Preventing and Mitigating Slow HTTP Attacks in the Apache HTTP Server. When I applied the update for Windows 10 the server is now running so slow that pages time out, ajax calls time out, everything is broken, simply because it's all so slow now. wcf service slow response for first time. Microsoft Internet Information Services (IIS) sometimes uses additional decimal sub-codes for more specific information, however these sub-codes only appear in the response payload and in documentation, not in the place of an actual HTTP status code. Usually, these problems are easy to fix. As a Systems Administrator you begin to hear reports from users of your system hosted on IIS that the response is slow. NET web applications. org to diagnose poor Web page performance. Im running a classic asp app on win server 2012 , iis 8. Troubleshooting IIS and ASP. I'm running IIS 4. You should reduce your server response time under 200ms. For most of the time it could be network accessing issue. drupal 7 slow on windows server 2008, iis 7 Posted by bpopp on May 29, 2013 at 7:22am I have a d7 site up and running on windows server 2008 r2 with iis 7 and it's running extremely slow. MoodleCloud. slow response. Time To First Byte is often used as a measure of how quickly a web server responds to a request and common web testing services report it. x, just jump right into the IIS configuration of the website and locate the "HTTP Response Headers" item: And from there it's pretty self-explanatory:. Net community used its set of previous information to create the most simple and quickest server ever possible and thus kestrel web. For 'Method1', When I make call to server for the first time (lets say I didn't make any calls for 2 days), response time is slow (more than 35 seconds). NET Web API There are a couple of things to consider when dealing with large file uploads and ASP. Dealing with large files in ASP. These are things we will look at in this series. 5 seconds - (3. Texas Instruments TI-30X IIS 2-Line Scientific Calculator, Black with Blue Accents. Microsoft Internet Information Services (IIS) sometimes uses additional decimal sub-codes for more specific information, however these sub-codes only appear in the response payload and in documentation, not in the place of an actual HTTP status code. Not bad for shared hosting and no CDN. We could use tools like Windows Debugging tools, Debug Diagnostic or Perfview for any slow response for an applications running in IIS. Pedersen on February 11, 2014 • ( 20 Comments). But the theory isn't very good. IIS response is slow. Slow/Unstable Internet Speeds after Win 10 Update in Network and Sharing My interent on my custom desktop, as far as I can remember, has functioned fine for a long time now. Slow performance MySQL on Windows Server 2012 with IIS 8 24/05/2013 By Dennis Rietveld IIS8 , MySQL , Performance , Windows Server 2012 , Wordpress After installing a MySQL/PHP combo by using the Web Platform Installer on a Windows Server 2012 host with IIS 8 installed I noticed slow initial response time of loading webpages. The setup is being used as an IIS webserver with Reporting Services. I'm dealing with client spreadsheets calling the same function 160 times or more in one sheet and it takes a minute or more to return all the values. There is some mention that web browsers simply time out or stop responding completely when they are accessing your website. 0) to Server 2008 R2 x64 (IIS 7. Moodle in English. But the App Service Plan can't be shared with a Windows hosting plan. Track down IIS application issues with Microsoft DebugDiag. Description: ----- A friend of mine had the following problem for almost 2. Learn how to set up Failed Request Tracing to capture IIS errors. There are many reasons your Internet connection might appear slow. SolarWinds Server & Application Monitor is a comprehensive application performance monitoring tool that helps you monitor server response time for 200+ applications, including Windows, Linux, AD, Oracle, IIS, Exchange, S. AJAX calls response too slow? I noticed a problem on my Windows Server 2003 running IIS 6. IIS lets you optimize performance with built-in content caching and compression features, and improve the reliability of your applications by isolating them in separate application pools. IIS 6 - Slow Response Time. This issue occurs if the sizes of the files are larger than the "maximum cached response size" limit of the Output Caching feature. but the symptoms make it appear as though the IIS server/site is the slow point? slow, intermittently no response. In this article, I show how to host our ASP. Troubleshooting Slow Response Issues with PHP Application. NET hang can cause your website to have slow page loads, timeouts, or 503 Service Unavailable errors. However for PHP. Just a heads up that Wordpress isn't spectacularly slow. Microsoft Internet Information Services (IIS) sometimes uses additional decimal sub-codes for more specific information, however these sub-codes only appear in the response payload and in documentation, not in the place of an actual HTTP status code. Moodle Partners. This article showed an example of slow time to first byte, and some possible causes of slow web server response times. A web browser gets first the HTML file that includes all the references to the assets, which need to be downloaded sub-sequentially. drupal 7 slow on windows server 2008, iis 7 Posted by bpopp on May 29, 2013 at 7:22am I have a d7 site up and running on windows server 2008 r2 with iis 7 and it's running extremely slow. On the new VMs, it's closer to 900 ms, which is about 50% slower. Slow Response in Server 2008 R2 We're in the process of migrating our DNN site from Server 2003 x32 (IIS 6. 3 minutes for cold start, or after it gets recycled by IIS App Pool. NET Web API. Hi - we recently implemented a SSO authentication -> IIS -> tomcat -> BI redirect and our response time seems awfully slow. The cause of slow servers usually lays with the web host. Check Outsystems service in 'TaskManager' (on-premise environment. Hi All, I'm trying to track down a performance problem with our new internal wordpress site. This issue occurs if the sizes of the files are larger than the "maximum cached response size" limit of the Output Caching feature. He told me that the problem only occurs in the first request, or on the first request after long time (30 mins or above), but he cannot be exact and can't. NET application Web 2. I have installed a Windows Server 2008 R2 64-bit guests and it is running very, very slow, almost to the point of being unusable. IIS lets you optimize performance with built-in content caching and compression features, and improve the reliability of your applications by isolating them in separate application pools. How to speed up or slow down a keyboard If your keyboard responds too slowly, or even too quickly, it can turn the simplest of typing tasks into a misery. Welcome to Moodle in English! Installing and upgrading help. We recently migrated a web server to a Hyper-v virtual machine. This article showed an example of slow time to first byte, and some possible causes of slow web server response times. Dealing with large files in ASP. I removed that server from my list of DNS servers. IIS hosting isn't supported yet. Although 80% of web performance problems are typically due to front-end issues (Souders 2009), back-end bottlenecks can slow your site down to a crawl. Unless Plesk on Windows uses something other than IIS. Wikipedia defines Time To First Byte as "the duration from the virtual. Note: In Windows Server 2003 with IIS 6. Hi all, Im having an issue where when PHP, IIS and MySQL are all used, I have really bad delay times, especially with First Time to Byte. Monitoring application response time helps you troubleshoot and identify the root cause of slow application performance. NET Forums on Bytes. Server 2012 R2, IIS 8. But the App Service Plan can't be shared with a Windows hosting plan. NET Forums on Bytes. There are multiple reasons why an iPad may run slowly, including an app that has issues or a slow internet connection. The monitoring can call attention to issues with the IIS system before they negatively impact the end user's experience. net , performance It's always nice when you can just either install something or flip a switch and experience dramatic improvements within your application performance. We are a community of 300,000+ technical peers who solve problems together Learn More. Chunked encoding adds overhead. When I applied the update for Windows 10 the server is now running so slow that pages time out, ajax calls time out, everything is broken, simply because it's all so slow now. User tracert command if your Ping command shows you no trouble. If you are using IIS 7 or IIS 6 with Kerberos Authentication, you may see an increase in network traffic and overall slow performance when pushing out large packages to your System Center Configuration Manager 2007 Distributions Points. If the slowness can be diagnoesd as a result of static content taking a long time to load , then use IIS Static content caching or Azure CDN. Hi - we recently implemented a SSO authentication -> IIS -> tomcat -> BI redirect and our response time seems awfully slow. There is a limit on the size of content (like files) one can upload when that content is hosted on an Internet Information Services (IIS) web server. NET application performance by making just a few small tweaks, would you do it? Of course you would! (UPDATE: If you are looking for specific techniques to troubleshoot common ASP. It is not uncommon for over half of your total HTTP requests from a single web page to be used for loading background CSS images. So when a page called, browser keeps loading even the page is loaded completely. Dear All, Can anyone let me know which one is fast in response?Datacap Web Services hosted as windows service or hosted on IIS we are facing slow response with Datacap web services hosted as windows service. Troubleshooting Slow Response Issues with PHP Application. 0 or Web Two-Dot-Slow? Does your site stay strong in times of high traffic? In this practical how-to guide, Jeff and Jon flex their technical muscle to. It is not uncommon for over half of your total HTTP requests from a single web page to be used for loading background CSS images. There is some mention that web browsers simply time out or stop responding completely when they are accessing your website. Similarly, high memory utilization and inadequate system resources could also lead to slower response times, which prompt user experience issues. NET Web API. While server response times are usually not the primary bottleneck when it comes to slow page response and load times (slow server response times typically account for only 10% of the total delay time), there are still ways you can optimize your response times to improve your page’s performance. Slow/Unstable Internet Speeds after Win 10 Update in Network and Sharing My interent on my custom desktop, as far as I can remember, has functioned fine for a long time now. Static compression module disable kernel caching of response if static compression is enabled for the request but the client requested uncompressed response. All the specs are there, but the WordPress sites were still not firing quickly, it was always a "slow server" response I'd get from GTMetrix or Google PageSpeed Insights. The app is running very slow on t. 0 servers is not given this kind of slowness in the system, but migrated to Windows 2008 R2 with IIS 7. NET is streaming that just a few bytes at a time. Track down IIS application issues with Microsoft DebugDiag. Hardware and performance. Troubleshooting IIS and ASP. If you create a VM, install Windows Server 2012 on it, and then create a new ASP. The reason we are needing to do this at all is because we have confluence and Fisheye on the same machine, and users of both systems want to access each via port 80. I have run a response time checker it shows an increased WAIT time in a waterfall chart from 1 to 5. Slow/Unstable Internet Speeds after Win 10 Update in Network and Sharing My interent on my custom desktop, as far as I can remember, has functioned fine for a long time now. StoreFront relies heavily on IIS, all the changes we are making here are based on IIS optimization, not StoreFront optimization. However, after upgrading to windows 10 and having it around for a while, I noticed a sharp decrease in internet speed. Check Outsystems service in 'TaskManager' (on-premise environment. 5 seconds after an IISRESET) - regardless of page, plugins etc. I am using a clean build of Windows Server 2012, which has IIS 8 already installed. HTTP uses TCP as a transport layer. Sites impacted: 69%. Server response time is an important value to track as all website assets are indirectly dependent upon it. Bulky images and poor code are traditionally considered the main factors, which cause the problem. Hangs can be caused by blocked ASP. We've got a. It's huge - more than 11,000 attendees from what I hear. However for PHP application this may not be helpful. A user reported slow response time that relates to a particular business transaction, for example, an internal tester reports "Searching for a hotel is slow". " An investigation into the components of slow web page download times. If your server response time is slow, then your whole site will be slow, no matter how optimized your other resources are. Troubleshooting IIS and ASP. IIS exists within a network ecosystem, and the load balancer is a key part of that. With IIS 6, the Microsoft defaults were a long ways off of the optimum settings, and a number of changes were necessary before IIS Compression worked well. NET Issues with Log Parser - Slow Performance -1. So when a page called, browser keeps loading even the page is loaded completely. The ISAPI redirection via IIS works, it is just extremely noticably slow. Do watch out for slow file. My server is Windows Server 2012. 5 Performance by wing 43 Comments Like any other web servers, IIS 7. Not bad for shared hosting and no CDN. 5 seconds to around 700ms. If you're like me, you may have wondered too. NET Issues with Log Parser - Slow Performance -1. IIS Response Times VERY Slow. Security and privacy. Have you tried using IIS as the web server instead of IIS Express? There are pros and cons listed at Web Servers in Visual Studio for ASP. The strange thing though, is that it runs very fast the second time around, even for other users. Moodle Partners. Also they said images would occasionally load very slowly, one at a time. About DevCentral. How To Fix Windows Server Network Performance Problems If your server network performance is lagging, chances are Windows' security features are to blame. But the App Service Plan can't be shared with a Windows hosting plan. In bouth cases it works with external sql 2005 server. The slow performance occurred immediately after reloading a web page (any page, not just the specific url sitemap. It could be a problem with your modem or router, Wi-Fi signal, signal strength on your cable line, devices on your network saturating your bandwidth, or even a slow DNS server. *UPDATE*: See the follow-up article 6 More Tips to Fix Slow Load Issues. IIS exists within a network ecosystem, and the load balancer is a key part of that. The ISAPI redirection via IIS works, it is just extremely noticably slow. We started noticing poor performance on the site. On IIS the site is slower (about twice longer or even more) and so far we haven't been able to improve the server response time and/or the site speed in general (frontend and backend). IIS serving pages extremely slowly. Net at page level and the time taken from PreInit to Render is only in seconds whereas the time taken for that request is around 2 mins. In bouth cases it works with external sql 2005 server. Bulky images and poor code are traditionally considered the main factors, which cause the problem. All HTTP response status codes are separated into five classes (or categories). However I have identified a few points that should help improve the performance / speed of a WordPress site running in IIS. Moodle Partners. When IIS responses slow it may not be your IIS configuration issue. Eventually, I decided I really need to spend some time investigating why these sites were so slow. IIS Response Times VERY Slow. When it comes to X-Powered-By, this one is actually easily configurable straight out of the box in IIS 7. While this is more likely to happen with older iPads that don't have the processing power of the iPad Air and iPad Pro tablets, even the newest iPad can slow down. In general, the less is more principal works well here — keep the Internet Explorer cache small and clear it often. It is either based on the fact that server resets the timeout with every piece of data it receives, e. I know there are a lot of threads on this but none have managed to solve my problem. Another issue was that as internet servers advanced the IIS web servers were not cope up to the speed of the internet servers making it slow, so a need for a faster web server became necessary. Combinable CSS Images. Test how your application responds to a slow request from external service or api. Slow Response Automated Data Collection using FREB and debug diag ‎02-15-2019 05:37 AM Recently I have come across many situations where we observe slowness and it is a challenge to collect the right data at the right time either because no one is available when the issue is happening to collect the data or issue is very intermittent. Hi All, I'm trying to track down a performance problem with our new internal wordpress site. It is not uncommon for over half of your total HTTP requests from a single web page to be used for loading background CSS images. So the front-end does requests to the back-end through IIS. I have a change in behavior of IIS after updating to Windows 10. Diagnose if your theme is slowing down your site. HTTP uses TCP as a transport layer. In this case, all file requests were being served by an ASPX page - it looked up information in a database as well as did some authorization checking before returning the file. On the new VMs, it's closer to 900 ms, which is about 50% slower. Now, if a distinction should be made it wou. 5 and above, this header tag is removed from the response header and by default, it is enabled as discussed but there is another header tag in opposite case. There is some mention that web browsers simply time out or stop responding completely when they are accessing your website. Hello all, In this blog, I would like to cover the scenario of troubleshooting web application page execution slowness issue using Freb logs. It defaults to 1740 minutes, which is exactly 29 hours. General help. Very slow response/TTFB times from IIS web application So we have a server running a https site on IIS - it makes function calls to a web api, also hosted on IIS on the same box. If you could double your IIS/ASP. The setup is being used as an IIS webserver with Reporting Services. NET is streaming that just a few bytes at a time. xml format) that shows events and notifications from the va. It looks like IIS Express is being slow to start up. Re: Windows server: Slow Response on Windows 2003 IIS 6 by Edward Roche - Thursday, 17 December 2009, 12:47 AM Usually all pagesit seems like the page loads but images take a while to load or the data that comes from the DB takes a while to load. Thanks! You solution worked. I am using a clean build of Windows Server 2012, which has IIS 8 already installed. This is useful when we want to host our Web API application in localhost. 5 years: He is a Windows expert, and uses IIS to host his pages. 0 Application Initialization. I removed that server from my list of DNS servers. The host is running fine and the Server 2012 R2 VMs are running fine, only the Server 2016 VM runs very slow. With our fiber, 1 gig Ethernet and Gig Switches, we have a mix of speeds well above the Siemens slow point. Windows 10 slow response or performance after waking up from sleep mode Hello, Every time it wakes up from sleep mode, it is slow and lag performance on anything even moving any window panel a bit. Have you tried using IIS as the web server instead of IIS Express? There are pros and cons listed at Web Servers in Visual Studio for ASP. The time needed for the server to send back the first byte of the response to the client; Why slow time to last byte of the HTML file results in bad user experience. Slow performance MySQL on Windows Server 2012 with IIS 8 24/05/2013 By Dennis Rietveld IIS8 , MySQL , Performance , Windows Server 2012 , Wordpress After installing a MySQL/PHP combo by using the Web Platform Installer on a Windows Server 2012 host with IIS 8 installed I noticed slow initial response time of loading webpages. General help. Comparisons and advocacy. NET developer community for tips on improving the performance of ASP. Server Processing. LeanSentry uses external, low-overhead monitoring based on IIS log files, performance counters, WMI, and ETW tracing. I removed that server from my list of DNS servers. Static compression module disable kernel caching of response if static compression is enabled for the request but the client requested uncompressed response. NET issues like hangs, high CPU, etc, check out our new LeanSentry Production Troubleshooting course. What Every SEO Should Know About IIS such as a 301 response, asserting that the value of the b. Note: In Windows Server 2003 with IIS 6. Slow Response To Exchange Virtual Directory Cmdlets over the wire and make RPC calls to the IIS Metabase on that sever. Slow user session in Windows 2016 Server with SQL Server Standard you've found why the. Here's how to alleviate the problem. 0 Application Initialization. x, just jump right into the IIS configuration of the website and locate the "HTTP Response Headers" item: And from there it's pretty self-explanatory:. Currently Plesk comes to an absolute crawl whenever it must interact with IIS metabase (such as when modifying hosting aspects of a domain). While designed to speed up browsing, if left unchecked the burgeoning folders can sometimes slow IE to a crawl or cause other unexpected behavior. I've always been a bit curious where that default came from. When I applied the update for Windows 10 the server is now running so slow that pages time out, ajax calls time out, everything is broken, simply because it's all so slow now. 16385 on a Windows 7 machine. At busier times, or from further away, there is also a much better response; even if I don't manage the sub 3 second target every time. But the App Service Plan can't be shared with a Windows hosting plan. NET Issues with Log Parser - Slow Performance -1. MySQL/IIS (and therefore PHP through IIS) are more likely at fault here. While this is more likely to happen with older iPads that don't have the processing power of the iPad Air and iPad Pro tablets, even the newest iPad can slow down. Windows Azure WebSites and Cloud Services Slow on First Request By Simon J. Usually, these problems are easy to fix. Note - For IIS 7. Glossary of. Welcome to Moodle in English! Installing and upgrading help. Very slow response/TTFB times from IIS web application So we have a server running a https site on IIS - it makes function calls to a web api, also hosted on IIS on the same box. Check Outsystems service in 'TaskManager' (on-premise environment. You are on a low quality hosting service with poor support. IIS serving pages extremely slowly. Dear All, Can anyone let me know which one is fast in response?Datacap Web Services hosted as windows service or hosted on IIS we are facing slow response with Datacap web services hosted as windows service. No I have about 15 Vision displays shown on a production. There are dozens of potential factors which may slow down the response of your server: slow application logic, slow database queries, slow routing, frameworks, libraries, resource CPU starvation, or memory starvation. Slow/Unstable Internet Speeds after Win 10 Update in Network and Sharing My interent on my custom desktop, as far as I can remember, has functioned fine for a long time now. In sites that rely upon Ajax for functionality (or even pizzazz), performance becomes even more critical than the general JavaScript performance. For IIS, check out this page for more information. No I have about 15 Vision displays shown on a production. Another issue was that as internet servers advanced the IIS web servers were not cope up to the speed of the internet servers making it slow, so a need for a faster web server became necessary. NET MVC 5 Web App Startup to 3 Seconds. My host server is a Dell 2950 with two duo core Xeon processors and 32GB of RAM running Windows Server 2003 R2 64-bit, and it doesn't seem to be over taxed. WCF Performance Tuning - The Low Hanging Fruits Comments | Share I was recently tasked to review the performance of a data intense desktop application that uses WPF 4. 5 : Improve Performance Fixing slow initial load for IIS web site IIS 7. You could be having a slow site because you are hosted on a free web hosting. Have you tried using IIS as the web server instead of IIS Express? There are pros and cons listed at Web Servers in Visual Studio for ASP. There is some mention that web browsers simply time out or stop responding completely when they are accessing your website. If you're a regular reader of Gizmo's, you're probably the resident internet expert among your friends, family or company. Dear All, Can anyone let me know which one is fast in response?Datacap Web Services hosted as windows service or hosted on IIS we are facing slow response with Datacap web services hosted as windows service. While designed to speed up browsing, if left unchecked the burgeoning folders can sometimes slow IE to a crawl or cause other unexpected behavior. However some of our users started complaining the site was slow during prime time. Usually, these problems are easy to fix. Page with a lot of resources takes over a minute or returns Request Timed out. Further Reading Habib, M. Note: Application Initialization is built-in for IIS 8. When I applied the update for Windows 10 the server is now running so slow that pages time out, ajax calls time out, everything is broken, simply because it's all so slow now. If you are using IIS 7 or IIS 6 with Kerberos Authentication, you may see an increase in network traffic and overall slow performance when pushing out large packages to your System Center Configuration Manager 2007 Distributions Points. I don't know about IIS, so it's been complicated to know what to do (for me). The faster it is the better the web server (in theory). Posted on 18/05/2014 Updated on 06/08/2015. We've just moved to new server, which should only serve static files. There are many reasons your Internet connection might appear slow. Initial Troubleshooting Steps In some cases, the source of your problem might be easily diagnosed by choosing Troubleshoot > Slow Response Times in the left navigation pane. NET Issues with Log Parser - Slow Performance -1. CORS on IIS7 Adding required headers for underlying CORS handling. See Issue 2: IIS Timeout; Page loads, All charts take forever to load, then they simultaneously render at the same time. Troubleshooting IIS and ASP. All the specs are there, but the WordPress sites were still not firing quickly, it was always a "slow server" response I'd get from GTMetrix or Google PageSpeed Insights. Oct 24, 2016 at 6:32AM. The website was developed by classic ASP ( using HTTPS ).