Broadband downstream link speed much lower than Sky shows online

[mae-3]

@WestleyZero 

If the line drops in the 10-day training day then you'll need to wait about another 10 days for it to recover, when there are no further unexcepted drops in the next 10 days it will recover to its original speed of around 70Mbps automatically and a 3dB noise margin.

The target for BT Openreach is 6dB when it drops unexpectedly in the training period and 3dB if it stabilises over 10 days. And DLM is automatic for VDSL2,  nothing can be done about it manually by Sky.

[WestleyZero]

Yes, I know how it works. If you read the thread from the begining you'll notice I posted after 2 weeks of switching to Sky, and then again after 7 weeks of switching. It's clearly not going back up, and the limitation is clearly not the line (as explained initially, it was steady at >70 Mbps before switching to Sky).

I was asking if there's any point contacting Sky about it or if they'll just shove it under "it's above the minimum guranteed" (which they set at 53 Mbps...)

[mae-3]

@WestleyZero 

I'd check all cabling going from the router to the master socket and ensure it is good, broadband lines don't drop for no reason. Probably a minor issue with a cable loss in its socket or faceplate that needs replacing.

[WestleyZero]

Cabling hasn't changed. Agreed speed doesn't change for no reason - the reason isn't on my side

[mae-3]

@WestleyZero 

When the reason isn't on your end then you need to phone Sky to report the fault and get an engineer allocated to look at the issue.