I'm not sure if my problem is the same as everyone else - I had access to my server and shares through Windows 11 until about an hour ago, then without warning I lost access to the server. I got my access back (for now, will update if I lose it again) by doing the following:
1. Created a new user on the unraid server and assigned it a password
2. changed the share access to secure
3. mapped the share on windows 11 and used the new UN/PW combo I created
I was able to log into that share - I still don't have full access to the server like I did (still not sure what changed) but it's a work around if you need to access certain shares.
I hope this helps somebody!