smbv1 and Big Sur

[Billy Chaney]

I was just wondering if there was a way to turn off smbv1 in Big Sur. I keep getting the following error.

Jan 26 14:29:51 smbd[11178]: No protocol supported !
Jan 26 14:30:04 smbd[11250]: [2021/01/26 14:30:04.686636, 0] smbd/negprot.c:706(reply_negprot)

 

[ColinTaylor]

SMBv1 was disabled in Catalina so I'm not sure why you're seeing it in Big Sur. Are you sure the error is caused by SMBv1 and not SMBv3?

 

[Billy Chaney]

SMBv1 was disabled in Catalina so I'm not sure why you're seeing it in Big Sur. Are you sure the error is caused by SMBv1 and not SMBv3?

I don't know why either. When I set the router to SMBv1+SMBv2 the error goes away. It doesn't stop me from accessing my NAS or my USB thumb drive attached to the router.