"Intermittent connection" as a description is too general. But when the router is removed from the equation, troubleshooting can be done properly. They just need to be more upfront about the problem they have. *Sigh*
Upon checking my router's uptime, I noticed the IPV4 wan IP was disconnected around 0630H while the IPV6 wan IP remained connected for almost 8Hrs which corresponded roughly to my router's own uptime... What is this?!