ssh: connect to host github.com port 22 and also 443: Connection timed out-CodePudding

I have a problem connecting to github using ssh.

I'm trying to use

ssh -T [email protected]
ssh: connect to host github.com port 22: Connection timed out

ssh -T -p 443 [email protected]
ssh: connect to host ssh.github.com port 443: Connection timed out

so editing ~/.ssh/config (like suggested here) does nothing for me

What I don't understand is that I can telnet the ssh port no problem whatsoever

telnet github.com 22
Trying 140.82.121.4...
Connected to github.com.
Escape character is '^]'.
SSH-2.0-babeld-e1420b26

Also when I use VPN or my phone as LTE hotspot everything works just fine. I have a mikrotik router which has not been touched or changed in a long time.

CodePudding user response：

So I have finally found out the problem, it was because of invalid routing my ISP had.