I have the exact same problem with Vodafone and my Mag. Total and utter rubbish isp. They must have some way of throttling iptv traffic, there must be over a 1000 complaints of this nature i have read and apart from a VPN, nobody is anywhere close to providing a solution.
With sly fiber max my iptv was a dream, router syncs at 68Mb, mag syncs at 39Mb, switched to Voda and after 4 weeks dropped to 2Mb on mag. All set-up the same, everthing else still the same speeds, just the mag that suffered. So please somebody please tell me it is possible for Voda to throttle certain traffic, if so how can they do this, i have no idea about this sort of thing. Is it done at the router? Before it enters the router? Can they limit a certain device? Doesn't youview use iptv and this works flawless on tv's.
Over the last 2 months I like 1000's of others have tried everything, new providers, reboots, messing with router settings, resets, new cables, etc. All i have left to test is restoring the mag to a previous version of firmware. Alot mentioned about infomir messing within last update. After ruling this out, it will confirm what everyone says isn't possible and Voda are throttling certain traffic. Some techking out there must know away around this just for a hobby, instead of VPN.