Trying to create LAGG in FreeNAS, bonding two ports causes no connectivity.

As topic says, I’m trying to create a lagg in FreeNAS and when I bond the two connections in RouterOS it says the ports are already assigned a master. I remove the master, create a bonding with those two ports and I’m still unable to receive an IP address on the NAS. When assigning a route, I lose connectivity on every computer and have to reset my router to factory.

What am I doing wrong? I’ve already broken off the reset button on my RB2011 now so it’s a pain in the ass to reset.