Yeah if it wont let you use more than 10 then I guess that is the limit. That feature is so rarely used anymore that it doesn't really surprise me that it has such a limited capacity for wireless mac address authentication.
It could be that the window that displays the MAC address will only show 10 at a time, I don't know. I went to actiontec.com and couldn't find anything on their site or for other models that says they limit the number of address you can have. If you really got to know then you could call actiontec support and I bet they would know but that is not something we normally configure at Verizon.
