On 11 Feb 2022, Mike Dippel said the following...
 
 MD> Lately, I am unable to connect to my BBS via Telnet from my home
 MD> computer.  I can, 
 MD> however, connect to it if I log onto one of my servers and telnet or
 MD> http from that remote 
 MD> computer.

Mike, not sure if youre using Mystic BBS or not but,
Have you tried (in a shell) Mystic -l  to log-in locally?

   Mick Manning
-()-

... Radioactive cats have 18 half-lives

--- Mystic BBS v1.12 A48 2022/01/28 (Raspberry Pi/32)