for the past two weeks we have not been getting the speed we are paying for. we are getting 6 down and 1 up. also, i guess there is some ipv6 trial that we missed out on but i noticed that the cable modem we are renting from comcast doesn't support ipv6 so i was wondering how to go about getting one the does support ipv6
Login to your modem page and post the output(Down/upstream power, SNR). As for the modem. If they're doing a trial in your area they may send you a modem that support IPv6, probably best if you give them a call.