Getting the 1303 after taking the Joey out of standby is a known issue. The work around is resetting the Joey. This should be corrected with a future software update. I will report that you are only getting the 1303 error with the internet connected.
I can also say I was getting the same Joey error only if internet is connected to the Hopper. I tried several Joey resets but made no progress until disconnecting internet on the Hopper (no internet was connected to the Joey at any point).