Running on TWC and have replaced their modem, the cable to the router and the router. The current modem is Ubee DDM3521 and the router is Cisco 2500. About every 10-15 minutes the internet stops working then without any action it starts functioning again. This occurs for everything attached to the router (wired and wireless) TWC says that they do not record any drop in communications. We are using 192.168.15.x for the LAN which previouosly used a Vonage. We have OOMA attached to the router. Suggestions would be appreciated
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