Connectivity to our india based VMs from US based WARP clients has stopped working

Connectivity to our india based VMs from US based WARP clients has stopped working for three weeks, where as access to same servers/tunnel from india based PCs still works. The requests to the private IP don’t even seem to be reaching to cloudflared running on linux VM as that log shows no activity from the Connector diagnostics live log on portal. If it is some firewall issue from ISP, we need to tell them what to tweak and that’s not clear.