WPE Pro & ROTMG

I know that using WPE pro to edit packets will ultimately do nothing, but I like to play around with them, and it has been a while since I've played ROTMG or used WPE pro.

What I can't seem to figure out is how to start receiving packets. I'm using firefox and I've logged using plugincontainer and flash player to no avail. Is there some new kind of protection?

I suggest making a proxy from oryxhatesjava.
You cant easily send or read packets sent by rotmg, atleast that what I have observed.

Flyrocket knows more about packets.