My ARRIS BGW210-700 is automatically changing the IPV6 MTU causing General Discards. This prevents me from Remote Desktop Connection. Previously a factory reset has corrected this. The modem, after a factory reset,
ARRISAT&T Arris BGW210-700 802.11bgnac 400mW Bonded VDSL2 Wireless Voice Gateway for Sale in Hialeah, FL - OfferUp
AT&T's BGW210-700 Gateway || Rooting and Certificate Extraction