Bt do not throttle connections anymore so maybe exchange congestion which has nothing to do with your ISP BT Retail
welcome to the BT community forum where customers help customers and only BT employees are the forum mods
in order for the forum members to help please can you post the adsl stats from your router you may need to 'show detail' to get all stats (if hub enter 192.168.1.254 in your browser and navigate to adsl or if HH4/5 then go to troubleshooting then logs and you are looking for 2 line together when hub last connected to internet and they will show your connection speed and noise margin or if netgear enter 192.168.0.1). Then run btspeedtester (MAC users may have problems). when first test completes then run diagnostic test and post the results ( do not reset the router). Must be done wired
The dslchecker results you posted previously showed estimate of about 3mb
are you connected directly via a filter to the NTE5 master or test socket or to somewhere else? Is the master the only phone socket in your home?
Have you tried the quiet line test? - dial 17070 option 2 - should hear nothing - best done with a corded phone. if cordless phone you may hear a 'dull hum' which is normal
Someone may then be able to offer help/assistance/suggestions to your problem
Yes that is connection speed and noise margin - 2.6mb with high noise margin of 9.6db whereas normal is about 6db. If you could maintain stable conenction and get noise margin down to 6db that would help increase your connection speed
You need to try and maintain a stable connection 24/7. Router reset today was that manual reset or router dropping connection?
what about using test socket and quiet line test?
A cheap corded phone for about £5 from Argos is a good investment as it may be line noise causing a problem but without a phone you cannot tell. It could save you getting engineer visit one to find problem was within your home and you get charged £129.99 for engineer visit