Taking the simple one first, the whole point of the interstitial faceplate the engineer fits to the master is that no re-wiring at the master or to the existing faceplate is required. All they change are the screws holding the faceplate on, using longer ones to go through both the faceplate and filter plate. See this page.
The result is that all the extensions have the broadband filtered out and are phone only. Which is why you would need to remove it. And find the shorter screws then needed!
Now to the speed. Do you know your estimates from the BT Wholesale Checker?
Unless you have completely screwed up wiring then using the extension should make little difference. That's a different discussion. BT Retail, Sky and TalkTalk no longer send an engineer and just supply their modem/router and a dangly filter, just as for ADSLx.
Having the master moved, unless once again your wiring is completely screwed and the engineer realises it and corrects it, again makes absolutely no difference. The same amount of the same cable is still added to your distance from the cabinet, so the speed loss is the same.
Edit - And if the wiring is currently screwed then even an installation at the master needs a pukka OR engineer to realise and correct it.
Well i didn't understand what you meant by the interstitial faceplate, i assumed this is the NTE5 faceplate, which needed rewiring? i guess it doesn't, yes now i'm confused
I'm pretty sure my wiring is good, as we get decent speeds over ADSL, approx 4.5-5mbps and we are a fair distance from the exchange.
Yes as per earlier in this thread;
As above for FTTC there's quite a difference is there not? especially towards the low end of the "impacted" scale if we were to use the internal wiring?
I'm not suggesting you are wrong but why do BT/Plusnet etc say it MUST be installed from the master socket then? In fact BT say it simply will not work from an existing extension, it has to be from the master.
Edited by bIOforger (Mon 20-Apr-15 16:37:37)