We are experiencing strange issues with our network. Thought I will raise here and look for different views.
We have a problem accessing a host across the WAN from sites starting with ip address 172.31.x.x, but, we also have other IP addresses in 10.x.x.x range which can access this host using the same link. Also, other hosts in the same subnet can be accessed without any issue. However, we could able reach from the problematic host across the WAN to sites with 172.31.x.x address range.
Strange enough, when we trace from 172.31.x.x it drops at the last hop before the host.
No firewall in the path between the host & sites with 172.31.x.x