Today just out of the blue users got the error 'the remote server is not a known tcpip host' all client lotus notes locations are set to chicago/admin but they can't find that now so we replaced the server details with the ip 172.20.1 30. We have a backup disaster server chicago-dr\admin and they can switch over to that location easily.
How to we get the original location to work again without going to each pc and the server to an ip in the location settings? Has something happened in DNS settings everything looks ok there is a record for Chicago-Mail1 pointing to 172.20.1.30 which is the mail server.
Any help much appreciated