MVP-8400 Replacement Wireless Cards

I have a Wireless CF card for a 8400 that is failing. Contacted my AMX dealer about a replacement unit and was told that the cards have been discontinued and there is no alternative. The card <i>might</i> be repairable but I would need to send to AMX for assessment.

Does anyone know of an aftermarket replacement card? CF Wireless cards are difficult to come by and I don't know which would work with an AMX unit. The card is one of the "Advanced" cards that enables the additional network security protocols.

I know it was the card that was failing as I swapped with a known working card and the issue followed the problematic card. Right now the symptoms is that the card will not see devices running on Channel 6. Unfortunately, I need that channel and the APs cannot be reassigned.

Thanks.