I run on an Apple MBP from mid-2009 (El Capitan 10.11.6) which has run well for years with no problems.
I am with Free-Onlne (Plus Net) and have been for nearly 20 years.
Last autumn I upgraded my modem to a
TP-Link TD-8817 and added a
Synology RT1900ac router.
My Broadband speed has been running at 4 to 5.5Mbps and has normally been better than 3Mbps for years.
I have negotiated 4 engineer visits (accompanied by the usual £65 intimidations) over the last 6 weeks because of various line faults and my line speed has gone right down to 0 - 0.9 Mbps and despite being assured by the latest visiting engineer that it is delivering 9 Mbps, The issue remains - I get less than 1 (and latency lies between 67 and 180).
Other people in the village served by Chathill exchange have also experienced issues since fibre was run to a new cabinet in the village.
I should be getting 9 but I get 0.9 - why?
Trying to isolate possible culprits, I get the same results with a different (older) modem, with no Router in the run and running everything through my late 2012 Mac Mini.
So does anyone have any ideas please - I'm off to get a new Modem today but I reckon it may be a waste of money. Getting help from Plus Net goes along with Blood from a Stone, and I have to believe the engineer when he says that his tests give 9+Mbps - who am I to think otherwise? The problem lies with my kit?