Most of our Multi Function Printers (about 8) have suddenly stopped scanning to our network share (on a Windows Server 2003 server).
I have troubleshot this for the past 5 days to no avail and EE is my last hope before having to implement something else instead of resolving the problem.
Sharp MX3501N states "selected server could not be found" (error 80-0000 in the logs which is no use anywhere).
Xerox MFP's say it's an authentication issue (error 016-782).
There are still some scanners that do work (ironically they are the newer scanners).
Things I've done:
Verified share permissions (they are completely correct, even testing with Everyone).
Pointed the scanner to a desktop with a shared folder (and it worked).
Verified Printer Settings are correct (gone up the tier with xerox, they recommended the group policy change mentioned below).
Checked Event Viewer for access logs on the server (there were none, but some from the printers that are still successfully scanning).
Ran Microsoft Network Monitor while attempting to scan (no connection attempt was logged).
Changed Group Policy for the server: "Send LM & NTLM - use NTLMv2 session security if negotiated" to "Send LM & NTLM Responses" then ran gpupdate.
I'm almost positive this is something with the server. It seems this happened after I rebooted the server. There were no Windows Updates installed (to my knowledge) which is very puzzling to me and the only thing I changed was the 'File and Printer Sharing for Microsoft Networks' properties on the network card to tell it to 'Maximize data throughput for network applications' instead of 'Minimize memory used' because it is a Application/File Server and has hanging issues due to the load it takes.
Please Help, I'm up to trying anything at this point.