Unable to pull/push/clone using SSH

Hi Everyone, i’m not sure if i’m posting it in wrong category please assist me if i’m wrong.
My team is having a trouble for past few days everything was working fine suddenly two days ago all of our team members who were using ssh for their git operations started to have problem with gitlab.
What we’ve went through so far.

  1. We made sure ssh key is fine.
  2. https is working fine.
  3. Checked on multiple OS Windows/Mac/Linux

So far no luck and problem is still there.
Thank you

  • Are you using Gitlab.com?
  • What’s the error / problem?

Yes i am also facing same issue. error is
kex_exchange_identification: read: Connection timed out
fatal: Could not read from remote repository.

i have githib repo also and this is working. i am easily clone, pull and push code from gihub but i am facing issue in project on gitlab.

yes I’m using GitLab as the provider any action clone/pull/push is not responding i.e do a clone with ssh git@gitlab.com: keeps hanging and ends without any progress.
Let me know if I can run any diagnostic commands to find the issue.

in my case I’m not seeing any error as command never finishes

Are you able to clone through HTTPS?
Do you have any new firewall / something that closes port 22?

Yeah, we’re able to perform all action through https.
No, we’ve no firewall blocking port 22.

I believe the problem is specific with region as i used on a remote computer and key worked perfectly.

Can you try to do ssh -vvv git@gitlab.com, so we can see where the connection drops?

ssh -vvv git@gitlab.com
OpenSSH_7.9p1 Debian-10+deb10u2, OpenSSL 1.1.1d  10 Sep 2019
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: Applying options for *
debug2: resolving "gitlab.com" port 22
debug2: ssh_connect_direct
debug1: Connecting to gitlab.com [172.65.251.78] port 22.
debug1: Connection established.
debug1: identity file /home/lb/.ssh/id_rsa type -1
debug1: identity file /home/lb/.ssh/id_rsa-cert type -1
debug1: identity file /home/lb/.ssh/id_dsa type -1
debug1: identity file /home/lb/.ssh/id_dsa-cert type -1
debug1: identity file /home/lb/.ssh/id_ecdsa type -1
debug1: identity file /home/lb/.ssh/id_ecdsa-cert type -1
debug1: identity file /home/lb/.ssh/id_ed25519 type -1
debug1: identity file /home/lb/.ssh/id_ed25519-cert type -1
debug1: identity file /home/lb/.ssh/id_xmss type -1
debug1: identity file /home/lb/.ssh/id_xmss-cert type -1
debug1: Local version string SSH-2.0-OpenSSH_7.9p1 Debian-10+deb10u2

That’s where it stops

@rpadovani any findings?

Unfortunately, I don’t really know how to help you, it seems that you don’t receive any response about the protocol.

Strange thing is that the connection has been established:

debug1: Connecting to gitlab.com [172.65.251.78] port 22.
debug1: Connection established. 

Maybe open a support ticket?

Yeah seems like the only option.
Thanks for helping man