Hi,
i have 2 wraps with mikrotik 2.9.8 installed and phen pinging one side to another, packets bigger than 1450 with compression ( 1400 without ) do not pass throught. When pinging from winbox to winbox, they pass, but high packetloss and hi ping times. Packets less than 1450 have latency 5-10ms. It’s a wds bridge. AR5212 cards, 802.11a - 5520MHz, ack dynamic (69).
MTU on all interfaces 1500