I have started developing in C# MVC4 after 8 years of PHP and plenty of VB and C#.
My current problem is this: the application serves the images very slowly, yet only some of them. 32x32px images are served instantly, as they should, yet a 439KB PNG image is downloaded in over 30s. It's not a bandwidth problem, I checked on Remote Desktop Connection to the VPS that serves the files and it was slow to load there too.
Also jquery.min (181.5KB bundle) is 12.14s (measured by firebug).
I have tested with both static and dynamic compression ON / OFF, no improvement.
I have also tested with
<modules runAllManagedModulesForAllRequests="false"></modules>
on and off, still no improvement. I've had this problem both on Windows 2008 SP1 and on Azure.
Problem appears on IE9, FF, Chrome and Opera.
Any help will be appreciated.
Thanks.
Thank you for your support, the problem was caused by the ISP, and thanksfully their support fixed it.
Related
Please, I need help about a strange behaviour of our server.
The server (Microsoft Windows Server 2012, IIS 8.5, Plesk Onyx 17.8.11) hosts a lot of sites developed in different technologies (PHP, ASP.NET, HTML+JS).
These sites work well with Chrome and FireFox both on Windows and MacOS, but Safari on iOS 11 & 12 is unable to open the sites, so I get this error "safari can't open the page because the server where this page is located isn't responding".
Sometimes Safari open the site for a few minutes, then it don't work again.
I experience a similar in Microsoft Edge: it can't open the sites unless I run Fiddler, in this case it works well.
I'm getting crazy, because this behaviour seems to be unpredictable.
Thank you in advance.
There are many compatibility issues for safari (I can't speak for edge). If you inspect the CSS code of these particular sites that you are having trouble running, and with some research, you will likely be able to identify the lines of code that are causing the sites not to load on Safari.
I have an ASP.NET Application I want to debug on localhost. When I run it without debugging, it runs very fast and smoothly, with about 3 seconds per page load. However, when I try to debug the app with Visual Studio and Chrome or Firefox, every page load takes about 20-30 or even 40 seconds to load, which is extremely slow. I have tried everything I found on the internet about these issues, yet none seems to help me out:
"Load all Symbols" from Microsoft Symbol servers, then uncheck that location
Delete all breakpoints
Uncheck "Enable property evaluation"
Other options I can't recall
Which is a good debugging configuration for asp.net apps? Any extra suggestions that may help?
Thank you very much and kind regards,
David
It is possible that your visual studio is using a lot of memory. You should try to turn off the browserlink which will reduce the amount of memory being allocated. It is still fine to disable the browserling and the preview still works.
Here is a guide and explanation
http://blogs.msdn.com/b/webdev/archive/2013/06/28/browser-link-feature-in-visual-studio-preview-2013.aspx
It is also possible that you have a lot of data or calculation to be ran in your form load.
Another possibility is a slow internet connection, this only applies if you have items or scripts on your page the are from an external source like JavaScript, CSS etc.
I'm developing an asp.net web site to work on mobile devices. Is going ok and works fine with android and iphone. I've no got around to testing it with blackberry in my balcberry curve. When i first tried everything looked good b ut then i noticed that some od the autopost back on dropdowns etc did not work. Some research time later i turn out out that by default that blackberries do not support this and that I need a Blackberr.browser file to allow that type of functionality to work. I following this link...
http://www.codeproject.com/KB/aspnet/BlackberryASPNET.aspx
After doing this my blakberry will not load the site at all, i just get connection timeouts. So i tried removing the blackberry.browser file, read loading the assembley in an attempt to get back to where is was, but still the site will not connect. I've refreshed iis, recycled app pools and even rebooted. I have a QA site on another box that the blackberry will connect to, but my development machine it does not like anymore:-(.
Any one got any ideas in what is going on?
Thanks for any help.
Richard
I have also suffered with the pain of developing (actually optimizing) websites for BlackBerry and Symbian, and I understand your suffering.
As you're using BlackBerry Curve, I suppose you're using a MDS server simulator on your development machine to let the BlackBerry Emulator connect to Internet.
Although I am not sure if you're even using a simulator.
I also have come across some simulators which just won't connect to the Internet no matter how hard you try with MDS server and all.
I hope you're not stuck with any issue related to the above said things mate.
Are you trying to connect your localhost with your BB?
I have a newly deployed mvc app on a win2008 server box.
I am trying to troubleshoot some very strange ie6 behaviour when over https. if a ie6 user connects to the webserver over https a simple post back or ajax call takes around 1 minute to complete, no errors are raised on the browser, it just sits there ticking away for about a minute, then completes as expected (both server and client as expected). the same post back or ajax call over http works in < 2 seconds.
There are no errors or events raised on the server, so i am flying blind here.
has anyone experienced this behaviour before, any ideas? with no errors or events to work with im not sure where to start. any other browser over https works fine, just ie6.
cheers
andrew
a quick follow up on this one. on further investigation the issue was only occurring on windows 2000 ie6 machines, xp and ie6 was ok. I guess from these results there must be something in the encryption/decryption framework on windows 2000 conflicting with the iis7 server.
I have managed to convince the windows 2000 ie6 users that its time to upgrade!
This brings up another question, when, if at all, do you think its acceptable to block certain versions of software from your web apps?
andrew
This problem is beginning to annoy.
After my machine (Vista Ultimate) has been up for a while, running my ASP.NET web site project for debugging in VS2008 results in Internet Explorer "hanging". It doesn't seem to get past the network access stage, you know when it says "Loading web site", or "Waiting for".
I've attached a screenshot of IE. Note the status bar. It stays like that forever. I have to restart it and cross my fingers for it to work the next time. Invariably, it doesn't.
This happened with IE7 and IE8.
I am using the ASP.NET Web Development Server/Cassini. I have tried restarting this each time which seemed ot have got it, but then not so any more.
I'm up to date on patches.
ie screenshot http://img40.imageshack.us/img40/5446/iehanging.png
So thankfully Microsoft have finally released Security Essentials.
This meant I could de-install AVG (Free and paid-for versions) from my machine.
Hey presto, it works!
I would check the following
1) that your not starting IE against the webserver againt the wrong port, if your using the development IIS then it changes ports at times. That combined with you setting up the browser to launch against a the old port could create this problem.
2) Stop the local IIS and restart it (Again make sure your pointing towards the correct port)
3) Make sure you dont have any hung IE in task manager ( this happens to me sometimes ). Basiclly you have a IE in task manager that uses less then 1mb of ram and does not show on the taskbar, if thats the case kill them.
This doesn't sound, strictly speaking, like a hang. Can that tab/other tabs be navigated to other sites? Is your machine configured to use a proxy?
Is the request actually sent? Using Fiddler2 from www.fiddler2.com with the URL http://ipv4.fiddler:56125/ will show you, and help determine where in IE the problem might be.
I just had a similar problem that took about a week to unravel. Using AVG 9 Business Edition.
I'm on a Windows 7 machine with Visual Studio 2010 SP1, debugging ASP.NET sites running in IIS, with the same "hang" behavior you're seeing. Disabling LinkScanner and Online Shield in AVG fixed the problem.