I’m having a very similar issue with a GLD-80 with a AR2412 and AR84 in the expansion port. However, if I take the AR84 out of the equation, the GLD is happy. Yes, firmware is v1.62 as well. Another note, whenever the AR84 is in the expansion port it boots up with the info icon saying “Device firmware updated”. If you clear the prompt and try shutdown sequence, everything is ok. It just seems when the AR84 does a power cycle is when it freaks the console out on the shutdown sequence.