VPN not connecting in PB20

Using several VPNs through the PeplinkB20. I have one that will not connect. Keep getting error “The remote connection was not made because of the remote access server did not resolve.” I have deleted and reentered VPN in this Win 10 PC several times. Same results. Go to another PC with same VPN info and no issue. What could be blocking this VPN setup in this one PC?