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Hi all i have been having similar problems with machines on my network. Machines running windows 7 when students login they cannot access the internet, when i look into the problem im finding that the proxy is missing. It never used to be like this, as all the preferences are setup in GPO, im worried something sinister is at play

I've had a similar problem with new windows 7 machines desktops and laptops but its not user specific it tends to be machine specific. The only way I have got around it is to re image that specific machine

Yep i find re imaging solves the problem, ive recently had a similar problem on some of our Samsung laptops running windows 7 professional 64 bit. So far re-imaging is the solution. wish there was an easy fix for this.

Do you think it has anything to do with us going through the BgFl network?

Machine key hasn't resolved the issue, unfortunately....

Where abouts do I add the machine key script? I'm a novice at this. I tried adding the machine key into various positions in the web.comfig script but errors occur.

The web page of the above error page is: =http://myfiles.al-hijrah.bham.sch.uk/hap/login.aspx?ReturnUrl=%2fhap%2fMyComputer%2fH If I delete everything up to /hap from the address, I return to the login page (obviously) and can re-log in. It's a real pain!

I get this error page as well, whenever I click something, it returns to the login page and the user clicks the back button: Server Error in '/hap' Application. -------------------------------------------------------------------------------- Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.Web.HttpException: Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster. Source Error: The source code that generated this unhandled exception can only be shown when compiled in debug mode. To enable this, please follow one of the below steps, then request the URL: 1. Add a "Debug=true" directive at the top of the file that generated the error. Example: <%@ Page Language="C#" Debug="true" %> or: 2) Add the following section to the configuration file of your application: Note that this second technique will cause all files within a given application to be compiled in debug mode. The first technique will cause only that particular file to be compiled in debug mode. Important: Running applications in debug mode does incur a memory/performance overhead. You should make sure that an application has debugging disabled before deploying into production scenario. Stack Trace: [ViewStateException: Invalid viewstate. Client IP: 10.120.26.11 Port: 41280 Referer: Al-Hijrah School - Home Access Plus+ - Login Path: /hap/login.aspx User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.0; Trident/5.0) ViewState: /wEPDwUKMTUzNTQ2OTI1MGRkau2HejsLfCVEFJOQvCeYg8GcTDVqqvXBnDRLDNE49LQ=] [HttpException (0x80004005): Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster.] System.Web.UI.ViewStateException.ThrowError(Exception inner, String persistedState, String errorPageMessage, Boolean macValidationError) +235 System.Web.UI.ViewStateException.ThrowMacValidationError(Exception inner, String persistedState) +14 System.Web.UI.ObjectStateFormatter.Deserialize(String inputString) +274 System.Web.UI.ObjectStateFormatter.System.Web.UI.IStateFormatter.Deserialize(String serializedState) +4 System.Web.UI.Util.DeserializeWithAssert(IStateFormatter formatter, String serializedState) +37 System.Web.UI.HiddenFieldPageStatePersister.Load() +241 System.Web.UI.Page.LoadPageStateFromPersistenceMedium() +106 System.Web.UI.Page.LoadAllState() +43 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +8431 System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +253 System.Web.UI.Page.ProcessRequest() +78 System.Web.UI.Page.ProcessRequestWithNoAssert(HttpContext context) +21 System.Web.UI.Page.ProcessRequest(HttpContext context) +49 ASP.login_aspx.ProcessRequest(HttpContext context) in c:\Windows\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files\hap\84de08c5\70e6ba5a\App_Web_n0qo2cag.2.cs:0 System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +100 System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +75 -------------------------------------------------------------------------------- Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.272 We're not using https or ssl certificates. Help!!!

OK, looking forward to your help. Thanks once again, Nick....

OK. Thanks Nickbro? Would you like a username and password to log into our HAP? Or are you going to send me an edited config file?

OK!, It actually does feel like a timeout. You can browse backwards and still get to files and folders, but when you click to download, it'll go straight to the login page. Then when you put your login details in, you are presented with the download prompt and then you can download. But them youo're stuck in a loop of logging in and downloading the same file! You have to close the files or click back a few times before resuming to normal access.

Here's my config file. I haven't had a look at this yet. -------------- ---------------- I'm glad the hapconfig file looks right...

OK, Nickbro, the error's come back!!! Please help (again!). Well, I'm not sure if it had totally gone. Teachers are free to browse without having to log in too often, but they still have to login more than once! Here is my hap config file: \\alhijrah-csvr1\users\secstaff\%username% \\alhijrah-csvr1\staffshared \\alhijrah-csvr1\subjects \\alhijrah-csvr1\classes \\ALHIJRAH-CSVR1\STAFFCOMMON \\ALHIJRAH-CSVR1\PRIMARYADMIN Do I still have 'bugs' in my file?

Thanks Nickbro. It's solved the problem! Such as simple solution. I didn't realise we could only put one group in there, as I was editing the hapconfig file directly and not using the wizard. I'm very grateful to you, for sorting this out! Regards...

Sorry, this is my HAP config file: \\alhijrah-csvr1\users\secstaff\%username% \\alhijrah-csvr1\staffshared \\alhijrah-csvr1\subjects \\alhijrah-csvr1\classes \\ALHIJRAH-CSVR1\STAFFCOMMON \\ALHIJRAH-CSVR1\PRIMARYADMIN