considering it's packetloss and you're on a laptop, I'd guess you're on a wireless connection, which is probably the reason your packetloss is so high. as for it only happening in MG, perhaps they have a more strict server setting that specs players with a certain amount of packetloss. try doing it in EG. if your packetloss varies from zone to zone, trace over 100 cycles then post the results here.