Noticed in TM1 10.2.2
If trying to connect to TM1 Server from network, it does not show up in the list of available servers.
However TM1 Server is visible in a local client.
Add “SupportPreTLSv12Clients=T” parameter to Tm1s.cfg file of your TM1 Server
Save Tm1s.cfg and restart TM1 server.
Now the issue should be fixed.