Deteriorating Speeds
Have you noticed any disconnections or the DSL light flashing on either pieces of hardware randomly? If your line has suddenly began to start to lose connection frequently your speed will get automatically downgraded by DLM (Dynamic Line Management)
To get everything checked properly and either fixed or un-banded, what ever the problem may be it is probably best to try and go through the faults process? You get given all the checks you need to do, which when it comes to fibre, there aren't many you can do and then you can just raise the fault at the end of the checker.
This is here for ease - https://faults.plus.net
When it comes to fibre, I always would opt for the faults process, you can always go through any diagnostics first before actually raising the fault.
To get everything checked properly and either fixed or un-banded, what ever the problem may be it is probably best to try and go through the faults process? You get given all the checks you need to do, which when it comes to fibre, there aren't many you can do and then you can just raise the fault at the end of the checker.
This is here for ease - https://faults.plus.net
When it comes to fibre, I always would opt for the faults process, you can always go through any diagnostics first before actually raising the fault.