Tested a 1gbit Bidi link using your BTest server.
984mbit RX/TX with IPv6 traffic .
Close to maximum of the gig link for the event it's gonna host in a few weeks..
For me it stops looping with downgrade to 6.33rc16 on rb450g and rb750gIf you downgrade to older RC, does the reboot loop stop? Can you make a supout.rif file then, so we can see the config?