Her first instinct was to blame the Dublin team. “Hey,” she messaged her counterpart, Liam. “Did you guys revoke a root CA on your load balancer today?”
More precisely, it refers to a cross-certification setup, common in large enterprises or government networks that use their own Private Certificate Authority (Private CA). r2r root certificate is not installed
Priya leaned back and typed a quick post-mortem for her team: Our machine was missing the R2R (Root-to-Root) bridge certificate for the partner’s private CA. The error message is misleading—it doesn’t mean a file named ‘R2R’ is missing. It means the chain linking our public trust to their private trust is broken. Her first instinct was to blame the Dublin team
Three minutes later, Liam replied: “Negative. No changes. But I’ve seen R2R before. Check your local trust store. R2R isn’t a standard CA—it’s a concept .” Priya leaned back and typed a quick post-mortem
Priya had seen SSL errors before—expired certs, mismatched domain names—but “R2R” was new. She opened a terminal and pinged the Dublin server. It responded. She tried a basic web request: curl https://api.dublin-partner.com/health . Same error. The connection wasn’t even getting past the first handshake.