Error with webserver

Coriron Haz
Coriron Haz used Ask the Experts™
on
We have an issue when loading a website on our IIS server. Is anyone able to advise where we start in resolving this?

For reference, we have removed the server from the domain and re-joined it in the hopes this would help, but it hasn't made any difference.

IIS Server connects to a separate SQL server for its database.

error
We are also seeing an ASP.NET issue in the event log:

Event code: 3005
Event message: An unhandled exception has occurred.
Event time: 7/18/2019 1:54:10 PM
Event time (UTC): 7/18/2019 12:54:10 PM
Event ID: 9eec4075582648cbae1807c776b5b714
Event sequence: 8
Event occurrence: 7
Event detail code: 0
 
Application information:
    Application domain: /LM/W3SVC/1/ROOT/WebaBILLityPro-1-132079278328427605
    Trust level: Full
    Application Virtual Path: /WebaBILLityPro
    Application Path: C:\inetpub\wwwroot\WebaBILLityPro\
    Machine name: WEB-ABILITY
 
Process information:
    Process ID: 3068
    Process name: w3wp.exe
    Account name: IIS APPPOOL\.NET v4.5
 
Exception information:
    Exception type: Win32Exception
    Exception message: No authority could be contacted for authentication

 
 
Request information:
    Request URL: https://billing.intechtelecom.co.uk:443/WebaBILLityPro/Login.aspx?z=fafe553b-315e-4920-aecf-d35b4c72c6cb&z=fafe553b-315e-4920-aecf-d35b4c72c6cb 
    Request path: /WebaBILLityPro/Login.aspx
    User host address: 51.52.75.191
    User:  
    Is authenticated: False
    Authentication Type:  
    Thread account name: IIS APPPOOL\.NET v4.5
 
Thread information:
    Thread ID: 7
    Thread account name: IIS APPPOOL\.NET v4.5
    Is impersonating: False
    Stack trace:
 
 
Custom event details:
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Commented:
I fixed this myself. Turns out the SQL server that this is linking to had used all its TCP ports (net stat -a). I increased the number of dynamic ports and resolved this. Now just working out why this happened in the first place.

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