We experienced timeouts for deltas and builds when pushing images to our registry hosted in the US East (N. Virginia) region. This issue impacted our cloud builders in Finland and Germany, among other regions.
The root cause was identified as a public routing issue between certain regions, affecting the ability of some of our systems to access the registry efficiently.
We resolved the issue by enabling proxied routing protocols for our registry endpoint. This allowed us to bypass the impacted network paths and restore normal operations.