theone, I experienced the same thing last night with my Avov2 and the TVOnline app. At the time this was happening, I tested my Internet connection using Speedtest dot net and hitting a server in Sydney Australia. It tested out at 24Mb down with no packet loss, .64Mb up, and pings at 256ms (not bad for the distance). I have a hardwire connection from my Avov to a gigabit switch and a router in my basement attached to my "fiber to the home" internet connection. I do not believe my issue was Internet related because I brought up Kodi 16.0 on my Avov and ran multiple movie and IPTV apps with no buffering or hiccups.
I am currently running the TVOnline app and having no problems at all today, so far.