Hope I'm in the right place -Telkom and mweb say nothing wrong and problem my side?

[paulinct]

I have a 4 meg line from telkom and have switched over to mweb 4 meg uncapped adsl - currently running a free 7 day trial.

I use about 150 to 200 gb per month downloading (mainly streaming)
When I do a speedtest on my mac (which is hard wired from router to mac) I get good download speed tests around 3.5 mb/s.

When I do the same speedtest on my iphone (on wireless network) I get speeds of only 1.5mb/s or a few minutes ago .8 mb/s

Telkom say nothing wrong with line - MWeb say they are not throttling me. No further advice provided :wtf:
Any ideas? I stream TV through my apple TV which is connected wirelessly. I have an extender to help boost signal (ha ha)
I am wondering if some software is not up to date - have checked apple software and all good but wondered about the wireless extender?

When I start watching a program speeds are fine but after about 30 minutes or so they start dropping off as I watch which is frustrating and eventually the programs hangs while it re buffers but by then I am *+*&* off!

Does any body have a solution/suggestion - I would just like to get a stable speed even if it is a little slower
thanks in advance
Paul

 

[qdada]

i am always skeptical about wireless extenders. i read somewhere they tend to halve throughput ? I am assuming your mobile is connected to the extender and not the main router ?

 

[paulinct]

Extender taken offline - speeds still the same