Short version. Was with BT for FTTC since about 2013 to 2017. Initially I had a max throughput rate but was unable to see line stats due to a locked modem. I am approximately 200 metres from the cabinet.
When I left BT in 2017 I was syncing in the region of 63Mb/s.
I went to TalkTalk who I am still with now. Over the last 18 months with them my speed has gone from this 63 to 48Mb/s as of now.
My current line stats (all I can see in the modem) are 18dB downstream and SNR of 6dB.
Logging into my TalkTalk account on their website, it suggests that my speed should be between 49 and 69Mb/s. They are 'suggesting' there is a problem.
As I am still around 200 metres from the cabinet, should I raise a ticket?
The reason that this is important now is that I may well re-contract with TalkTalk, but as they're (probably automatically) using my current line stats as part of the contract, they're guaranteeing a minimum connection speed of only 32Mb/s.