A communication system supports communication between an end node (101) of a vehicle (103) and a remote correspondent node (105) via a fixed network (107) which comprises a plurality of wireless access points (109) with a directional antenna arrangement for mm wave radio communication using directional beams. A vehicle (103) comprises wireless modems (111, 113, 701, 703) employing electronically steerable beamforming directional antennas for establishing mm wave radio communication links to the access points (109). The wireless modems (111, 701) forms links to two different access points (109). A ink manager (1101) is arranged to terminate a second mm wave radio communication link in response to a link failure a first mm wave radio communication link, and to initialize setup of a third mm wave radio communication link in response to the termination of the second mm wave radio communication link.