May
May
Wired or wi-fi? If possible try a wired connection if not already using one.
This may help as well:
May
May
Were you able to try out FuzzyLogic's suggestions? Failing that, and if it is happening on more than just one specific channel then it may be a hardware related issue, in which case you'd need to call it in.
May
Have you done a speed test over WiFi with a mobile device standing next to your PVR?
May
May
May
May
Should be 15 Mbps download or higher for Optik.