51.89.173.95 and 147.135.70.219 are okay, but the vpn client is not attempting to contact them.
11:49 EST: as I was typing this the vpn came back up online: 51.89.192.55 is still not replying or answering. Not all vpn endpoints in the network are online yet....
Once you get the server issue sorted, is there an issue with the vpn client attempting to connect to the other live vpn servers on your side?
Michael B Morell, CISSP CCNP CCSK