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• 09-23-2008, 8:28 AM

  Marvin256 Joined on 09-23-2008, 8:12 AM Posts 5

  no content sent to the webuser from IIS Reply Contact Hello  I have a big issue on my web server. Sometime, webuser have a blank page when browsing my website. In fact, they receive no content from the server: Status: 200 OK Server: Microsoft-IIS/6.0 X-Powered-By: ASP.NET X-AspNet-Version: 2.0.50727 Content-Length: 0 I had a deep look in the HTTP lofg file and found that everytime I have a sc-bytes with zero value, I always get a sc-win32-status value with 64, 22 or 1236. Note that this happens on *.gif, .html, *.aspx at random time. so it isn't a backend issue. Note that this happens more often with a crawler bot (MSNBOT) than with a real webuser. I heard that it may be related to a PROXY configuration between the server and the web user but I cannot handle this as it is out of my scope. Can this happens with a bad network at my hosting company? Thank you for your help

• 09-23-2008, 8:44 AM

  In reply to

  Rovastar Joined on 03-13-2008, 2:00 PM London, UK Posts 1,751

  Re: no content sent to the webuser from IIS Reply Contact These win 32 error codes do show that the network traffic didn't get through. It is a pain to troubleshoot win32 errors = 64 (which you probably see most of), etc. It is likely to be aproxy, network route, etc. As it happens with the bots it could be that the hosting provider is blocking some of it. Mayeb the request are coming in too quick and they are being rejected. For a text description of the errors see http://msdn.microsoft.com/en-us/library/cc231199.aspx use NET HELPMSG number  64 - The specified network name is no longer available.   22 - The device does not recognize the command. 1236   - The network connection was aborted by the local system. http://www.iisportal.com

• 09-23-2008, 9:20 AM

  In reply to

  Marvin256 Joined on 09-23-2008, 8:12 AM Posts 5	Re: no content sent to the webuser from IIS Reply Contact Thank your for your help! I'll ask my hosting company if they face some kind of network congestion or if they are filtering something on their network, but I'm pretty sure that they will answer: Ho! certainly not, our network is perfect! :-) Regards

• 09-23-2008, 9:39 AM

  In reply to

  Rovastar Joined on 03-13-2008, 2:00 PM London, UK Posts 1,751

  Re: no content sent to the webuser from IIS Reply Contact Marvin256: but I'm pretty sure that they will answer: Ho! certainly not, our network is perfect! :-)   Yeah know that is why these issues are a pain. ;) It could be anything (network/firewall/routing) in the way to the client machine end tbh. It *could* also be the server (i have managed to get the http 200 win32 64 error by misconfiguration an app) but this would be a persistant case. http://www.iisportal.com

• 09-29-2008, 10:42 AM

  In reply to

  Marvin256 Joined on 09-23-2008, 8:12 AM Posts 5

  Re: no content sent to the webuser from IIS Reply Contact Hello   An update about this topic. I have checked some IIS httplogs on several servers that are hosted on different hosting company and I always have this behavior. So I think this is not a network issue on my server, nor a configuration problem on Windows or IIS. Can somebody check on their IIS logs to see if they have SC-BYTES value set to 0 with a sc-win32-status set to 64 Thank you for your help

• 09-29-2008, 3:48 PM

  In reply to

  Rovastar Joined on 03-13-2008, 2:00 PM London, UK Posts 1,751

  Re: no content sent to the webuser from IIS Reply Contact I have seen this (http status ok 200 and bytes 0 (or less teh the full amount) witha wuin32 at 64.) many times. I think you can force behaviour like this with quick refreshes, closing windows down, etc. There can be legitimate client behaviour to emulate this or similar errors so it is not always helpful sadly. You will need to focus more on any pattern , clients IP address(s), browsers they are usings, tinme of day, etc   http://www.iisportal.com

• 09-30-2008, 6:15 AM

  In reply to

  Marvin256 Joined on 09-23-2008, 8:12 AM Posts 5

  Re: no content sent to the webuser from IIS Reply Contact Thank you Rovastar for you reply. I think you're right, these zero length contents can happen depending on the client browser or connection behavior. My problem is that I have a website on akamaï and some webusers see blank pages sometime depending on geographic region and time. I thought that this could be related to the zero content length sent by IIS to the Akamaï proxies...  It is very hard to have some support from Akamaï from this and my client is launching a live advertising campaign...

• 09-30-2008, 11:11 AM

  In reply to

  Marvin256 Joined on 09-23-2008, 8:12 AM Posts 5	Re: no content sent to the webuser from IIS Reply Contact A final note to tell you that it was a development design failure... The website was using geolocalisation to redirect people to the good content. but no content was sent if the webuser wasn't geolocalized...