SOLVED - Help! Locked out...

[Senorfluff]

Don't know what happened:  LAN no longer responds to ping, cannot connect to web GUI.
I was on the LAN page... changing a static address reservation.
Email (application, not web based) still works... New webpages don't work, but I think google search results were working!  Something DNS related maybe? 

I used my console (serial) access, got to the login prompt.  Tried logging in with my username and password, they are recognized as correct but prompt reads "This account is currently not available"
When I reboot the system no flags or errors or anything show up in the serial console.

Any ideas??  I don't even know where to look.

My setup is Very basic.  One extra firewall rule to keep a designated set of IP's from accessing the internet... I have sensai installed, but just as default settings.  Running on a lenovo tower, good 4 core cpu, 8 gb ram, nvme m.2 ssd... hardware doesn't seem to be the problem.

I do have a relatively recent backup config that I could reinstall with... but I'd like to try to figure this out if I can.

Thank you(!!!) for any suggestions or help.  Also advice on how to not get myself in a pickle like this in the future would also be appreciated.

UPDATE-------------
On the serial console, the LAN has no address.  It's just blank.
WAN has the same address as ever.

[bartjsmit]

On the serial console, revert to a state before you made the original change. Option 13

[Senorfluff]

Thanks for the suggestion.  I can't reach any of the options because it won't let me log in.  "this account is currently not available".  My only guess is that I never gave my user account console access privilege.  I'm just going to reinstall the whole thing, and this time add an extra interface that will allow GUI access if I accidentally break the LAN again.  I had turned off GUI access from the WAN side just to be extra cautious but if I had left it on I could have gotten in that way.

[franco]

What about the root account?

The installer will also reset the root password for an existing install to something else if you want to use it.


Cheers,
Franco

[Senorfluff]

THANK YOU!
I had just discovered that the installer can reset the password, and now back online I saw your reply.
I had disabled the root account... but this reset allowed me to login as root and then use option 13 to roll back to a few days ago.
I wish I knew what I did to mess up the LAN, but at least I now know how to get things working again.  Thank you so much for the help.

[franco]

Glad you figured it out, nice!