1
2FA issues
(lemm.ee)
You can make a post here if you're looking for support with any issues!
For general discussion about lemm.ee, please post in !meta instead.
Sorry to ask the obvious but, when you were setting up the authenticator app and applying it to your accounts, did you make a note of any of the recovery codes you were given incase you lost access to your authenticator?
I just activated it (and disable) in this new one with my new device and does not put any recovery codes anywhere.
Other services accounts do put it (and I kept them) or have a way to reset the login
What authenticator app are you using?
Synology's (I have a nas of that company) is called Secure Signin