Synology can’t connect after upgrade v7

4th May 2022

Synology recommended an upgrade to v7 due to some security shenanigans. After the update a user could not get connected.
1st test; logon to the web console to verify their credentials are correct. They are.
2nd test; logon via SMB from a different PC. Works so the problem seems to be the PC.
3rd test; logon from the problem PC using different credentials. Doesn’t work, supporting the theory PC is @fault
other PCs working fine

So turns out this is protocol related. Win10 Pro has group policies even if it isn’t connected to a domain. In this case the setting to ignore SMBv1 needs to be enabled because somehow v1 is checked first?

props and more info here https://community.synology.com/enu/forum/1/post/145907