I'm sure it's a common problem, but I can't find the solution. One of my Windows 10 computers (Number 1) can see another on my home network (Number 2), but Number 2 cannot see Number 1.
"Private" network.
Bitdefender (but problem remains even if firewall is off).
Network discovery in ON on both computers.
Applicable folders on both computers are shared (with "Everyone"). Full access/permission.
Password protection is off.
If I open Windows Explorer on Number 2, Number 1 does not appear at all in the Network list. (FWIW, a third computer, Number 3, does appear and can be accessed. On Number 1, both Number 2 and Number 3 appear and can be accessed.)
To further confuse things, Number 3 can see both Number 1 and 2. (So...even though 2 cannot see 1, 3 can see 1.
Not quite sure what else to do.
Suggestions?
Thanks.