Yea, DLM is annoying, but it’s just part of the process unfortunately.
Yes these are the PN rules below:
For FTTC (Dynamic Line Management - DLM Policy)
On the first day, your line will start at its fastest possible speed and Dynamic Line Management (DLM) will monitor the line for 24 hours.
Depending on the line's stability, the speed will be adjusted then checked again in 24 hours.
This will continue for up to 10 days until it finds the most stable speed for your line so please leave your Plusnet Hub One router turned on for the first 10 days while we are testing.
We do this to make sure you have the fastest speed your line can support on a stable connection.
While we are testing, you may notice some variations in your broadband speed and your connection may be intermittent at times - this is normal.
Do not turn off your Plusnet Hub One router - keep it ON at all times because Dynamic Line Management (DLM) will monitor the line at all times.
To avoid Dynamic Line Management (DLM) after 10 days turn off your Plusnet Hub One router from the main socket for at least 30 minutes before turn it back on.