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Hi,
Exchange 2016 CU20 on server 2012.
I rebooted it and the server hung on the array bios. It was then hard booted, not by me but Rackspace, our server company.
When it came back up, Exchange was working fine, except for OWA. When any user tries to log into OWA, they get "something went wrong...". That's it, no other error message.
Any help would be much appreciated.
Repeated errors in Event log below:
+
System
-
Provider
[ Name]
ASP.NET 4.0.30319.0
-
EventID
1310
[ Qualifiers]
32768
Level
3
Task
3
Keywords
0x80000000000000
-
TimeCreated
[ SystemTime]
2021-09-08T15:35:19.000000000Z
EventRecordID
20940922
Channel
Application
Computer
Ex2016-1.coachrealtors.lcl
Security
-
EventData
3008
A configuration error has occurred.
9/8/2021 11:35:19 AM
9/8/2021 3:35:19 PM
9b3b3c066e684cf8bc8fa7471639640c
1
1
0
/LM/W3SVC/2/ROOT/owa-181-132755889172773585
Full
/owa
C:\Program Files\Microsoft\Exchange Server\V15\ClientAccess\owa\
EX2016-1
29420
w3wp.exe
NT AUTHORITY\SYSTEM
ConfigurationErrorsException
Could not load file or assembly 'Microsoft.AspNet.SignalR.Core, Version=2.2.1.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. An API call exited abnormally. (Exception from HRESULT: 0x800300FA (STG_E_ABNORMALAPIEXIT)) at System.Web.Configuration.CompilationSection.LoadAssemblyHelper(String assemblyName, Boolean starDirective) at System.Web.Configuration.CompilationSection.LoadAllAssembliesFromAppDomainBinDirectory() at System.Web.Configuration.CompilationSection.LoadAssembly(AssemblyInfo ai) at System.Web.Compilation.BuildManager.GetReferencedAssemblies(CompilationSection compConfig) at System.Web.Compilation.BuildManager.GetPreStartInitMethodsFromReferencedAssemblies() at System.Web.Compilation.BuildManager.CallPreStartInitMethods(String preStartInitListPath, Boolean& isRefAssemblyLoaded) at System.Web.Compilation.BuildManager.ExecutePreAppStart() at System.Web.Hosting.HostingEnvironment.Initialize(ApplicationManager appManager, IApplicationHost appHost, IConfigMapPathFactory configMapPathFactory, HostingEnvironmentParameters hostingParameters, PolicyLevel policyLevel, Exception appDomainCreationException) Could not load file or assembly 'Microsoft.AspNet.SignalR.Core, Version=2.2.1.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. An API call exited abnormally. (Exception from HRESULT: 0x800300FA (STG_E_ABNORMALAPIEXIT)) at System.Reflection.RuntimeAssembly._nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, RuntimeAssembly locationHint, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks) at System.Reflection.RuntimeAssembly.InternalLoadAssemblyName(AssemblyName assemblyRef, Evidence assemblySecurity, RuntimeAssembly reqAssembly, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks) at System.Reflection.RuntimeAssembly.InternalLoad(String assemblyString, Evidence assemblySecurity, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean forIntrospection) at System.Reflection.RuntimeAssembly.InternalLoad(String assemblyString, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection) at System.Reflection.Assembly.Load(String assemblyString) at System.Web.Configuration.CompilationSection.LoadAssemblyHelper(String assemblyName, Boolean starDirective) Could not load file or assembly 'Microsoft.AspNet.SignalR.Core' or one of its dependencies. An API call exited abnormally. (Exception from HRESULT: 0x800300FA (STG_E_ABNORMALAPIEXIT))
https://ex2016-1.coachrealtors.lcl:444/owa/manifests/appCacheManifestHandler.ashx?owamanifest=1
/owa/manifests/appCacheManifestHandler.ashx
fe80::ada0:e5b7:1ecf:c499%19
False
NT AUTHORITY\SYSTEM
258
NT AUTHORITY\SYSTEM
False
at System.Web.Configuration.CompilationSection.LoadAssemblyHelper(String assemblyName, Boolean starDirective) at System.Web.Configuration.CompilationSection.LoadAllAssembliesFromAppDomainBinDirectory() at System.Web.Configuration.CompilationSection.LoadAssembly(AssemblyInfo ai) at System.Web.Compilation.BuildManager.GetReferencedAssemblies(CompilationSection compConfig) at System.Web.Compilation.BuildManager.GetPreStartInitMethodsFromReferencedAssemblies() at System.Web.Compilation.BuildManager.CallPreStartInitMethods(String preStartInitListPath, Boolean& isRefAssemblyLoaded) at System.Web.Compilation.BuildManager.ExecutePreAppStart() at System.Web.Hosting.HostingEnvironment.Initialize(ApplicationManager appManager, IApplicationHost appHost, IConfigMapPathFactory configMapPathFactory, HostingEnvironmentParameters hostingParameters, PolicyLevel policyLevel, Exception appDomainCreationException)
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(192, 27%, 28%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ESZ%3C/text%3E%3C/svg%3E)
Hi,
Are the Databases attached correctly? They need to be attached in order for the logon to be successful.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(198.4, 46%, 29%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EKS%3C/text%3E%3C/svg%3E)
I have the same exact problem and error. The databases are in good health. Any ideas?
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(201.6, 68%, 29%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EG%3C/text%3E%3C/svg%3E)
Same issues here, there was a microsoft update and the server rebooted without any problem, the ECP is working fine the OWA is not giving out the same error and core as described.
Steps:
1 - iisreset -- Did not solve
2 - Reboot -- Did not solve
3 - App REcycle on both OWA and ECP -- Did not solve
4 - UpdateCas.ps1 and UpdateConfig.ps1 runned + IISRESET -- Did not solve
Didn`t find anything left to try. I am pretty sure it may be related to update:
KB5005573 or KB5005698
But I am still stuck not being able to access OWA. I am now considering moving to the latest CU hoping that it will correct the situation, this is an older exchange CU09 with Framework 4.7 so maybe upgrading to 4.8 and running the CU will correct the situation.
Thanks
On a side note I do have 2 servers one with the problem and one without.
The 2 server are at the same OS and Exchange version, however there is 1 difference,
1 Server is a framework 4.7.1 (CU9 - So Compatible from the matrix available) and doesnt have any issue
1 Server is a Framework 4.6.2 (CU9- So Compatible from the matrix available) and DOES have the issue.
So We are scheduled to perform a framework update and a CU update and SU update as well to bring the server on the latest supported version of everything.
Thanks,
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(57.599999999999994, 73%, 15%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EIE%3C/text%3E%3C/svg%3E)
Same exact issue here on CU20. It started a few days ago for no apparent reason.
Well a final update, the system had been compromised by an external attack and I can only assume some of the problems may have been cause by external effect. But nevertheless. I had an issues with the Framework being to old, so we patched to the latest Framework 4.8 Available.
Then the issues became "worst" now even ECP woundn't work, found out it was having some issues to access some of the files in the framework directory. Didding further, it seems that some permissions were altered on the framework directory giving the System account a DENY write permission. Once I found at what level the permission was added manually, I removed the offending permission, and BOTH owa and ECP were working fine. So I completed the update with SU1 to make sure everything was good to go!
So Recap:
1 - Update FrameWork 4.8
2 - Reboot
3 - ECP and OWA not working but all services online
4 - Apply CU21 (Had some issue with removing file requiring another reboot to clean
5 - Complete CU21
6 - Reboot
7 - Still issue with OWA and ECP error is about a missing access file in the directory:
C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\owa\39dba043\4e0b7b81\hash.web
8 - Found out the file has a Deny write for System account
9 - Found the specific permission to be applied at the owa directory / Removed the Deny Permission
10 - Validate the permission has been updated correctly on the hash.web (However it may just be a coincidence
11 - Owa and ECP are back to working status (Before the start I had access to ECP but not OWA that had some errors in the SignalR.Core...
12 - Update to SU1
13 - Reboot one last time
14 - Check Event, Owa, Ecp, Routing Queue. Everything is working properly
Hope this helps!