I have a problem. When I get an error, I see that page with a correlation ID:

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But I can't find the error in the ULS logs. In App Server logs is empty by this correlation ID. In FrontEnd Server, I found only this:

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Why I don't have errors in logs?

  • Frontend server is showing the logs, you have to find for Level: Unexpected to see what's causing it Commented Jan 25, 2018 at 10:44
  • Hi, there isn't error for my correlation ID. Commented Jan 25, 2018 at 10:53
  • There should be, is that all the logs for that correlation ID? Commented Jan 25, 2018 at 10:54
  • Yes, that is all for that correlation ID. Commented Jan 25, 2018 at 10:55
  • 1
    Is your server is load balanced? Commented Jan 25, 2018 at 11:10

2 Answers 2


In a load balanced farm, your logs are spread across servers. You can use this PowerShell command to search across those logs for specific correlation IDs:

Merge-SPLogFile -path "D:\ErrorLog.txt" -Correlation "Your-error-correlation-id"

Documentation: https://docs.microsoft.com/en-us/powershell/module/sharepoint-server/Merge-SPLogFile?view=sharepoint-ps

If you still aren't finding your specific error, then the logging level of your farm may not be high enough. You can temporarily increase what is logged through Central Admin and then recreate the error (as possible).

  • Hi, @theChrisKent. I merged logs, but I found there only rows from my first post. In CA in Monitoring on both servers I cheked all categories and chose verbose and cklicked OK. Commented Jan 25, 2018 at 14:18
  • 1
    I found the problem. I increase logging level on both servers and saw errors, Thanks all! Commented Jan 25, 2018 at 14:54

Another way to check

  1. Pick any server from your farm and get its ipaddress.
  2. In you client machine Run->drivers->host open it in notepad(admin mode) and enter that IP along with webapp url (i.e. 10.125.xxx.xx webapp.domain.com).
  3. To double check it Run->CMD->'Enter *ping webapp.domain.com*' it should point you to the same server IP.
  4. Now, All set re-iterate your issue, Then go to that server and look for that ID.

Note: You should remove/comment that host entry after testing.

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