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System.Net.WebException making web service calls about 10% of the time. Messages   Related Types This message was discovered on microsoft.public.dotnet.framework.aspnet.webservices. Responses highlighted in red are from those people who are likely to be able to contribute good, authoratitive information to this discussion. They include Microsoft employees, MVP's and others who IMHO contribute well to these kinds of discussions. Post a new message to this list... Chris Langston We are seeing a very frustrating intermittent problem. We are making Synchronious web service method calls from a .NET windows Service using the following syntax WebRequest.getResponse call it occasionally fails with the following error: 1) Exception Information ********************************************* Exception Type: System.Net.WebException Status: ConnectFailure Response: NULL Message: The underlying connection was closed: Unable to connect to the remote server. TargetSite: HorizonBoss.SoftwareUpdate.BusinessObjects.SoftwareInfoResponse GetSoftwareUpdateInfo(HorizonBoss.SoftwareUpdate.BusinessObjects.SoftwareInf oRequest) HelpLink: NULL Source: HorizonBoss.SoftwareUpdate.WSProxy StackTrace Information ********************************************* at HorizonBoss.SoftwareUpdate.WSProxy.SoftwareUpdateProxy.GetSoftwareUpdateInfo (SoftwareInfoRequest requestInfo) at HorizonBoss.SoftwareUpdate.Components.ApplicationUpdateChecker.ApplicationUp dateChecker.AppUpdater_OnCheckForUpdate(Object sender, EventArgs e) This error occurs approximately 10% of the time. We are not using a proxy server. Any assistance would be great. We are using WSE 1.0 SP1 to encrypt and decrypt messages. The Remote Web Servers are running IIS 5.0 and IIS 6.0. The OS on the remote servers are Windows 2K or Windows 2003 Server. The Web Servers that we are calling into are taking a lot of request from many clients asking for information. There is no authentications on the remote web server as all requests are coming through as anonymous. Thanks Chris Langston Reply to this message...        Trebek Based on looking at the exception and your figure of 10%, I would guess it has to has to do with the 'keep-alives'. In a non-WSE service, it is very simple to override the 'GetWebRequest' method and set keep-alives to false thus never attempting to reuse a closed connection. With a WSE-generated proxy class, I *believe* this is still possible (never used it so I don't where you will need to override this method). Try this out and see if it fixes your problem. HTH, Alex "Chris Langston" <Click here to reveal e-mail address> wrote in message news:Click here to reveal e-mail address... [Original message clipped] Reply to this message...        Feroze [msft] (VIP) Can you tell me if you are using Windows Integrated Authentication on the webservice (i.e the server side) ? If so, you might be running out of wildcard ports on your client, and there are some settings you can tweak to alleviate this problem feroze ============ this posting is provided as-is. ============ "Trebek" <Click here to reveal e-mail address> wrote in message news:9KSRc.27579$Click here to reveal e-mail address... [Original message clipped] Reply to this message...        Chris Langston Feroze, This is the setting in our web.config file. <authentication mode="Windows" /> <authorization> <allow users="*" /> </authorization> On IIS when we setup the Web Service, we are allowing Anonymous connection. I guess that is the question that you are asking? Chris Langston Click here to reveal e-mail address *** Sent via Developersdex http://www.developersdex.com *** Don't just participate in USENET...get rewarded for it! Reply to this message...        Lucien This doesn't look like a WSE specific issue and therefore I would post this also in ASPNET/ASMX discussion groups (or contact tech support). It's difficult to tell what's causing this but you may want to check the server timeout setting and try to increase it and see if that changes anything. Also check you're not running out of connections. "Chris Langston" <Click here to reveal e-mail address> wrote in message news:Click here to reveal e-mail address... [Original message clipped] Reply to this message...     System.Diagnostics.StackTrace System.EventArgs System.Net.WebException System.Net.WebRequest Ad MBR BootFX Best-of-breed application framework for .NET projects, developed by Matthew Baxter-Reynolds and MBR IT

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