Recently we updated a exchange 2010 server from the default install to SP3 with Rollup 8. Since doing so we have email flowing in and out, and iPhones can connect ok, but not Android phones (giving authentication erodes). OWA and ECPis delivering a blank page.
The Application Event log gives the following error:
"Event 2280: IIS-W3SVC-WP: The Module DLL C:\Program Files\Microsoft\Exchange Server\V14\Bin\kerbauth.dl
l failed to load. The data is the error."
We also get the following information:
Event ID 1314, ASP.NET 2.0.50727.0:
Event code: 4008
Event message: File authorization failed for the request.
Event time: 9/22/2015 11:54:33 AM
Event time (UTC): 9/22/2015 3:54:33 PM
Event ID: e42fc33ff4ef4b5b86805a9111
Event sequence: 2080
Event occurrence: 700
Event detail code: 0
Application domain: /LM/W3SVC/1/ROOT/Autodisco
Trust level: Full
Application Virtual Path: /Autodiscover
Application Path: C:\Program Files\Microsoft\Exchange Server\V14\ClientAccess\Au
Machine name: AWEXCHANGE
Process ID: 3920
Process name: w3wp.exe
Account name: NT AUTHORITY\SYSTEM
Request URL: https://mail.theaudiowarehouse.com:443/autodiscover/autodiscover.xml
Request path: /autodiscover/autodiscover
User host address: 192.168.1.106
Is authenticated: True
Authentication Type: Negotiate
Thread account name: NT AUTHORITY\SYSTEM
Looking at the Application Pools in IIS indicates there is only ASP.NET v4.0.
System Event log indicates:
"Event ID: 5139, WAS: A listener channel for protocol 'http' in worker process '10140' serving application pool 'DefaultAppPool' reported a listener channel failure. The data field contains the error number."
This error is occurring every 2 seconds with multiple different worker process numbers.
I'm at a loss as to where to begin as I'm not the originating tech for the issue.
Any guidance is greatly appreciated.