I have restored the sharepoint WFE server to roll back some changes, and now I get Service Unavailable HTTP Error 503. The service is unavailable.
My farm consists of 1 WFE and 1 SQL server.
What could the reason for the error be?
It was actually just a trust relationship issue with AD. Once that was solved server and SharePoint were up.
This issue usually occurs in case of
The App pool of your web application is stopped.
If you got this issue after the restart that means
You have recently changed the password of your APP pool Identity from Active Directory that not reflected directly to the IIS and needs to be reflected manually.
In your case, you can't connect to the IIS and you got
The specified network password is not correct.
That means there is an issue in your network occurred after the restart, and you should check it with
Once this issue solved, try to
If it's stopped, try to update the App Pool Identity as the following: