Mission Planner UDP Issues

Hi All,

I am currently trying to communicate with 2 aircraft over UDP in Mission Planner. I am using the latest beta (1.75.1) and the latest ardupilot dev firmware. Mission Planner is struggling with the UDP traffic.

When I have my mission planner debug console up I can see:
INFO MissionPlanner.MAVLinkInterface - MAVLINK: bad read 10, 36, 9
INFO MissionPlanner.MAVLinkInterface - Mavlink Bad Packet (crc fail) len 36 crc 46531 vs 0 pkno 24 GPS_RAW_INT
INFO MissionPlanner.MAVLinkInterface - mav 99-1 seqno 5 exp 4 pkts lost 1
INFO MissionPlanner.MAVLinkInterface - Mavlink Bad Packet (crc fail) len 36 crc 3726 vs 0 pkno 24 GPS_RAW_INT
xINFO MissionPlanner.MAVLinkInterface - mav 1-1 seqno 180 exp 179 pkts lost 1
INFO MissionPlanner.CurrentState - EKF red uninit EKF_UNINITIALIZED
INFO MissionPlanner.CurrentState - EKF red uninit EKF_UNINITIALIZED
5INFO MissionPlanner.MAVLinkInterface - mav 99-1 seqno 21 exp 20 pkts lost 1
INFO MissionPlanner.CurrentState - EKF red uninit EKF_UNINITIALIZED

I am talking with aircraft 1 and 99. The second aircraft takes a very long time (5 minutes and counting) to pull parameters.

Qgroundcontrol does not have this issue. It pulls params effectively and in a timely manner for both aircraft. Any insight would be great.

Thanks!