Runners can't register

It looks like there may be an issue with registering new runners. I have some long-running Kubernetes runners. However, a few restarted today and they can’t register.

[31;1mERROR: Registering runner… failed e[0;m e[31;1mrunnere[31;1mstatuse[0;m=400 Bad Request
e[31;1mPANIC: Failed to register the runner. You may be having network problems.e[0;m

The status page doesn’t show any issues.

I restarted one that was working and it gets the same error on restart.

This was caused by 2021-05-15: Increased "Maximum number of ci registered group runners (1000) exceeded" errors (#4606) · Issues · / GitLab Infrastructure Team / production · GitLab