The self-hosted runner: xxx lost communication with the server

[Subharanjan2055]

The self-hosted runner: xxx lost communication with the server. Verify the machine is running and has a healthy network connection. Anything in your workflow that terminates the runner process, starves it for CPU/Memory, or blocks its network access can cause this error.

Earlier i saw so many people have posted the same error that i currently facing the same and so many CI stuck due to this error , if anyone fix it please do let me know.

Thanks,

[ruvceskistefan]

Hey @Subharanjan2055 ,

Is this still happening for you on the newest version of Runner? If yes can you post steps for repro or workflow that you're using?

[Rotemsim3339]

For the last few weeks this issue keeps happening to me as well. we have an aws machine- M5.4xlarge. and our project is running on parallel with 4 threads.
we are running 4 CI workflows in a serial way, one after the another in a day and the runner is "lost communication with the server" at least in one of the 4 runs. every day.
There is nothing consistent that happens, so it is very difficult to investigate.
Any leads would be helpful.

[Subharanjan2055]

@Rotemsim3339
Pls check whether any antivirus running behind your server where the actions-runner configured whether windows defender or anyother antivirus active on it pls check

[bruno-zica]

I am reopening this issue in #3539 because it is happening in my repository and this issue here was closed without a solution.