In your next message, you mentioned servers. Are you in a domain and have a domain controller running ?
Are the servers Windows servers and using which OS version ?
Which version of Windows 11 do you use now 22H2, 23H2 or 24H2.
I'm using Windows 11 24H2 now and a Synology NAS, not in domain (home network). For me the NETBIOS trick did work and I can see all shares (Windows pc's and NAS).
If you're not using a domain, try activating NETBIOS (see
https://www.thewindowsclub.com/enable-or-disable-netbios-over-tcp-ip-on-windows-10 )
If your server is not a Windows server and you're using SMB, see if your "server"as the option for signed SMB.
(see next article
https://techcommunity.microsoft.com/blog/filecab/accessing-a-third-party-nas-with-smb-in-windows-11-24h2-may-fail/4154300 )