Do BT cap IP Profile as a "fix" for unstable line

Question

I have a long rural line which seems to disconnect whenever there are heavy showers. In such conditions the router, BT2700HGV, will loose signal 2 or 3 times in the space of 5 minutes and usually re-connect at a lower speed, 3500 to below 2000 resulting in a lower IP Profile. The IP Profile used to recover within 24 hrs as the line stabilised.
Because of these recent disconnections my target SNR has moved from 9 to 12. I used to connect around 4000 max with an IP of 3 to 3.5 mbs.
I contacted BT and they tested the line.The agent said there was a problem, they would fix it without coming to my property. I received a call next day asking me if it was better. I said I would like them to call in a weeks time as it was too early to say. I checked BT Speedtester and my IP Profile was 2000k with a connection speed of 3168 (Home Hub 2). After 6 days, with no heavy showers, my IP was still 2000k with same 3168 and no disconnections. Then I had another disconnection so I replaced the HHub 2 with BT2700.
The BT2700 connects higher at 3500 and still the IP was 2000k. Then yesterday during some heavy showers there were 3 re-synchs in 5 minutes so I called BT. They went through the usual stuff, no faults on the line , must be my home network, but I have everything by the book, test socket etc etc so they called today to say they have done things to stabilise the line. Now I find my IP is 1500k but my synch speed is 3552 and I suspect they may have just capped my IP at 1500 from 2000k, cause I'm guessing that is what they did after my initial call, with a 2000k cap. The next few days will tell.

Answer 1

I have what sounds to be the same issue, also rural (New Deer) in my case. Heavy showers, snow and hail really muck up my line.
The change in default margin may appear to stabilse your line but I suspect you will find that the line will still drop in heavier rain (I get a total loss of signal in the worst of it) and sooner or later if the line fault is not found and resolved you may find that the line fails totally, this could be soon, could be next winter or could be years away (I am at the 6+ year point with this issue and each year it seems to be getting worse which is not a suprise).
I woudl suggest that you keep an eye on the connection when it is nasty weather and try a quiet line test when you loose sync.
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