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Forum Discussion
ns89
Apr 06, 2020Aspirant
C7800: Auth Reject - Permanent Authorization Failure
Hello all, I bought a C7800 as "renewed" from Amazon as open box, and it has a sticker on the bottom of the modem over the original MAC address that has a completely new MAC address. This modem i...
FURRYe38
Apr 08, 2020Guru - Experienced User
I would return the modem and get another. I would recommend that you inform Amazon of this problem so that they can return the modem to NG. The modem isn't usable until NG fixes it.
Or you can try a direct RMA buy opening up a support ticket with NG: