Xfi modem problems

Hi, wondering if someone can help me. Have the xb6 modem. I got it last week. Apart from not all my devices are being shown online, it was working ok. The advance security was working well. However, starting this morning, it wont block test malware sites anymore and jot getting notifications about new devices being connected to network. Even tried forgetting all devices. Tried factory reset and restarting but no go. Although i am on a 1 gig plan as well, and getting speeds, when i do a speedtest, it says i am on a 70mbps but getting 500. Wondering whether there is way to refresh my actual account since i think that is where issues are coming from. Thanks a lot