Well, I've read that the fibre socket filters the internet connection out before the internal wiring even touches it, so I don't think internal interference could be the source of the slowdown?

Edited by deleted (Wed 12-Feb-14 19:53:43)

Yes, but if there's a socket connected across the pair before the NTE, this is a bridge tap, and will be causing slow speeds and errors.

Ah, I see.

Well, is a bridge tap visible?

I can take the cover off and test all the sockets but isn't it probable that the speed will slow especially since now is a peak time?

Edited by deleted (Wed 12-Feb-14 20:02:56)

You won't affect the sync rate, but without a hacked modem, you won't be seeing that anyway.

A bridge tap might not be visible to the untrained eye, but using the previously described steps will prove if the little tinkers have left one on the circuit.

I will do some investigating.

When you questioned whether it was an Openreach engineer or Quinn's - what would the difference be in terms of the install?

The difference is the quality of the job they tend to, and in case you haven't guessed or noticed via other threads Zarjaz is a very helpful BT Engineer.

I see.

So will I be okay to disconnect the modem to test for a bridge tap? I know the 10 day stabilisation is somewhat of a myth but I'm still erring on the side of caution!

Yes, and if there is a bridge tap, DLM will continue to do its worse till it's resolved.

So, whip the front plate off, there should now be no dialling tone present on ANY other point in the premises apart from the test jack.

'Course, it just be a bum pair from the cab, but let us at least rule out what we can.

Maybe power it down first then disconnect?
Then visa versa.

Remember to switch the modem off before disconnecting it or connecting it to the phone line, and you'll be fine.