i get these every so often and was wandering if there is anything useful that i can use from the message to help determine what caused it. most of them re not consistant, and usually happen, after camping and going back into another character or switching servers,

i know some errors like this will show up when there is a packet structure issue, but the one i fixed i got the error everytime i went into the client and it was the same, most of the ones i have been getting are random and oh mostly happen at login to the character

I believe 30 and 246 are the opcode, other then that really nothing we can get from that message.