Issue with offloading to ethernet with the Nighthawk MR1100

Hi,

I own the Nighthawk MR1100 mobile router and uses its offloading to ethernet feature. One of the networks I connect the router to requires to register the MAC address of the router in order to gain connectivity. This worked great until the recent firmware upgrade to version 12.02.06.00. After the upgrade, each time the router is restarted, the network detects a different MAC address for the router and sends me to the registration screen again. After registration the router is connected to the Internet, but having to register in the captive portal each time is a nuisance. I didn't find any settings to change this behaviour back to to having a fixed MAC address for the ethernet port.

Please let me know if there is any workaround or ETA to fixing this issue. Also, it would be useful to be able to set the MAC address of the ethernet port to a user-provided value. Please consider adding this feature as well.

Thanks!