Despite having an attainable speed of ~46Mb my connection seems to be artificially capped at exactly 35Mb (Modem shows sync rate of 35000Kbit/sec).
BT support state that DLM has not been applied and that it's the maximum my package can deliver, yet I cannot upgrade.
Are there any options to remove this cap?
Can you post a screenshot of your hub stats. If your download speed is exactly 35M, it is almost certainly due to DLM banding your connection.
I very much doubt that there is any cap to remove, more likely is that your cabinet is congested.
Take a look at this link, I would expect that DLM has put you into one of those bands.
https://community.plus.net/t5/Library/FTTC-DLM-What-it-is-How-it-works/ba-p/1322799
You will never get the max available speed, as there are things like error correction, and other overheads.
@Les-Gibson it won't be 'cabinet congestion'
What package are you subscribed to?
35Mb is the cap for the lowest speed FTTC Essentials package. If you're on Fibre 1 or higher then it's possible that you're on the wrong profile.
I'm on "Fibre with halo 1" with no upgrade options
Then your line will not support a higher speed, as you are too far away from the cabinet.
If you post your connection information as requested, then that may give a better idea.
@rbz5416wrote:What package are you subscribed to?
35Mb is the cap for the lowest speed FTTC Essentials package. If you're on Fibre 1 or higher then it's possible that you're on the wrong profile.
40/10 is the SLT for Essentials, there is no 35 cap
55/10 is Fibre 1
80/20 is Fibre 2
The line is banded by DLM, simples.
Post the stats which will confirm that.