I'm looking for some assistance with SharePoint 2013. I've had the site up and running for the past year with no issues.
After installing windows updates this weekend, suddenly sharepoint is inaccessible. All the appears is a message stating
Service unavailable.
HTTP Error 503. The service is unavailable.
The event logs is full of errors for sharepoint. 121, 6482, 6398 Primarily, although, these errors showed up prior to this month's install of windows updates so that may not be relevant to the situation.
I found several articles that indicated to look at the application pool in IIS. this was setup with a specific user created just for sharepoint tasks in AD.
SharePoint-80 starts, but stops every time I try to load a site.
ff5698066fa040ba9bcc9a997ebe0fc5 starts but also appears to stop when I try to load a site.
I've tried changing the user on both of these application pools and when I change it to domain admin, I get a message stating you don't have permission to access the sharepoint site instead of HTTP ERROR 503.
The underlying server OS is Windows 2012
The database is SQL Express 2012
Any sharepoint experts have any advice? We had other issues with several IIS sites and application pools on other web servers. Those have all been resolved by changing the user on the application pool, but at this point we haven't been able to get sharepoint working.