Yep that was the problem, skidracer pointed it out to me in the bugs forum, which is why I asked at the top of this post to pay it no mind :) But thank you Paposo! :)
UDP socket, sending 270+ bytes crashes receiver
BlitzMax Forums/BlitzMax Programming/UDP socket, sending 270+ bytes crashes receiverThe forum is locked. These are the original blitzbasic.com forums, kept so they can still be read. No new topics, replies or edits can be made here. To join in, head over to the Blitz3D+ forums.