QVIIS Webserver failed randomly

Mon, 26 Jan 2026 18:19:17 GMT

Hi all,

Our qlikview IIS webserver occasionally fails. At first I thought it was due to some system issues. But it seems to be a recurring application problem.

Every other month, the server just stops working . Restarting all Qlikview services fix it and bring the server back online. But has any one see this issue and have any clue of what is going on here? Below is the error i got from the log at QlikTech directory which I have no idea what it means.

Any idea would help. Thanks a bunch.

Error	System.AggregateException: One or more errors occurred. ---> System.Exception: The communication with QlikView Server failed (TimedOut)! \|\| at QlikTech.NetClient.QvClient.GetMessageDataFromSocket(Byte[] buffer, Double timeout) \|\| at QlikTech.NetClient.QvClient.GetMessageSizeFromSocket(Double timeout) \|\| at QlikTech.NetClient.QvClient.GetMessageFromSocket() \|\| at QlikTech.NetClient.QvClient.Open() \|\| at QVSWrapper.QlikViewServer..ctor(Action`2 i_Logger, String i_Hostname, Int32 i_Port, Mode i_Mode, Boolean i_Https) \|\| at QlikView.AccessPoint.QlikviewServerSetting.Connect() \|\| at QlikView.AccessPoint.QlikviewServerSetting.Try(Func`2 f, Func`1 fail) \|\| at QlikView.AccessPoint.QlikviewServerSetting.Ping() \|\| at System.Threading.Tasks.Parallel.<>c__DisplayClassf`1.<ForWorker>b__c() \|\| at System.Threading.Tasks.Task.InnerInvokeWithArg(Task childTask) \|\| at System.Threading.Tasks.Task.<>c__DisplayClass7.<ExecuteSelfReplicating>b__6(Object ) \|\| --- End of inner exception stack trace --- \|\| at System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken) \|\| at System.Threading.Tasks.Task.Wait() \|\| at System.Threading.Tasks.Parallel.ForWorker[TLocal](Int32 fromInclusive, Int32 toExclusive, ParallelOptions parallelOptions, Action`1 body, Action`2 bodyWithState, Func`4 bodyWithLocal, Func`1 localInit, Action`1 localFinally) \|\| at System.Threading.Tasks.Parallel.ForEachWorker[TSource,TLocal](IEnumerable`1 source, ParallelOptions parallelOptions, Action`1 body, Action`2 bodyWithState, Action`3 bodyWithStateAndIndex, Func`4 bodyWithStateAndLocal, Func`5 bodyWithEverything, Func`1 localInit, Action`1 localFinally) \|\| at System.Threading.Tasks.Parallel.ForEach[TSource](IEnumerable`1 source, Action`1 body) \|\| at QlikView.AccessPoint.QlikViewServerStatus.PingThread() \|\| ---> (Inner Exception #0) System.Exception: The communication with QlikView Server failed (TimedOut)! \|\| at QlikTech.NetClient.QvClient.GetMessageDataFromSocket(Byte[] buffer, Double timeout) \|\| at QlikTech.NetClient.QvClient.GetMessageSizeFromSocket(Double timeout) \|\| at QlikTech.NetClient.QvClient.GetMessageFromSocket() \|\| at QlikTech.NetClient.QvClient.Open() \|\| at QVSWrapper.QlikViewServer..ctor(Action`2 i_Logger, String i_Hostname, Int32 i_Port, Mode i_Mode, Boolean i_Https) \|\| at QlikView.AccessPoint.QlikviewServerSetting.Connect() \|\| at QlikView.AccessPoint.QlikviewServerSetting.Try(Func`2 f, Func`1 fail) \|\| at QlikView.AccessPoint.QlikviewServerSetting.Ping() \|\| at System.Threading.Tasks.Parallel.<>c__DisplayClassf`1.<ForWorker>b__c() \|\| at System.Threading.Tasks.Task.InnerInvokeWithArg(Task childTask) \|\| at System.Threading.Tasks.Task.<>c__DisplayClass7.<ExecuteSelfReplicating>b__6(Object )<---
8/12/2016 04:10:27.0054857	Error	System.Exception: The communication with QlikView Server failed (TimedOut)! \|\| at QlikTech.NetClient.QvClient.GetMessageDataFromSocket(Byte[] buffer, Double timeout) \|\| at QlikTech.NetClient.QvClient.GetMessageSizeFromSocket(Double timeout) \|\| at QlikTech.NetClient.QvClient.GetMessageFromSocket() \|\| at QlikTech.NetClient.QvClient.Open() \|\| at QVSWrapper.QlikViewServer..ctor(Action`2 i_Logger, String i_Hostname, Int32 i_Port, Mode i_Mode, Boolean i_Https) \|\| at QlikView.AccessPoint.QlikviewServerSetting.Connect() \|\| at QlikView.AccessPoint.QlikviewServerSetting.Try(Func`2 f, Func`1 fail) \|\| at QlikView.AccessPoint.FileScan.ScanQlikViewServerClusters(IEnumerable`1 servers, Action`2 logger, IUser user, Int32& liveQvsCount, Boolean respectBrowsable)

Re: QVIIS Webserver failed randomly

kaushiknsolanki — Sat, 13 Aug 2016 14:35:25 GMT

HI,

I would suggest you contact Qlik Support. They are the right guys to guide you on this issue.

Regards,

Kaushik Solanki

topic Re: QVIIS Webserver failed randomly in QlikView

QVIIS Webserver failed randomly

Re: QVIIS Webserver failed randomly