The funny thing is that this smb-shares can be accessed perfectly with another machine (Win11)!?        The smb-share seems to be mounted just fine (vers=3.1.1): //10.246.37.221/Multimedia on /mnt/remotes/10.246.37.221_Multimedia type cifs (rw,relatime,vers=3.1.1,cache=strict,username=XXX,uid=99,noforceuid,gid=100,noforcegid,addr=10.246.37.221,file_mode=0777,dir_mode=0777,iocharset=utf8,soft,nounix,mapposix,rsize=4194304,wsize=4194304,bsize=1048576,echo_interval=60,actim