Why don't you keep it simple for a week or two by disconnecting all extension wiring and see if the line becomes stable, trying to add back in the internal extension wiring will only drag this out further as first you need to ensure the outside issues are actually fixed.

Correction, tried with another meter on a lower range (20K) and it is reading 6kohm in one direction. Is that low enough to cause rectified loop and ring trip?

6kOhm of itself is probably not enough for a ring trip. BUT given that it is a rectified loop issue, 6kOhm at test meter voltages is likely to be a much lower resistance at higher voltages and possibly quite adequate to cause ring trip.

To be more specific it was starting at 6k and dropping to about 3 or 4 in one direction. Open circuit in the other. I have abandoned the extension as there is only one phone on it replaced now by a dect phone.

Looks like you have found it then. Once you get the ringing down it then it will prolly go lower and trip

Not going near that new render is it 😊

Haha no its purely internal but the cable is under a high traffic doorway so could be there. No brickies involved.

In reply to a post by Banger:

Haha no its purely internal but the cable is under a high traffic doorway so could be there. No brickies involved.

Never, never, never, run telephone cabling under a door threshold, or tuck it down with the grippa rods 🙄

In reply to a post by Zarjaz:

In reply to a post by Banger:

Haha no its purely internal but the cable is under a high traffic doorway so could be there. No brickies involved.

Never, never, never, run telephone cabling under a door threshold, or tuck it down with the grippa rods 🙄

Well it was my late father who dun the deed many moons ago. Not much I can do now other than abandon it and use DECT.

Indeed. I’ve not anything other than a single NTE in my last four dwellings.

The sad thing is, how many engineers hadn’t been able to spot the two separate issues.

In one of my earlier replies I mentioned dissing of the line at the 66, allowing for tests to show the reccy loop inside, and an HR on the pair going back. This is Bob basic practise, but was not done successfully.

In reply to a post by Zarjaz:

Indeed. I’ve not anything other than a single NTE in my last four dwellings.

The sad thing is, how many engineers hadn’t been able to spot the two separate issues.

In one of my earlier replies I mentioned dissing of the line at the 66, allowing for tests to show the reccy loop inside, and an HR on the pair going back. This is Bob basic practise, but was not done successfully.

The question that is puzzling me the most is how come the two issues occur at exactly the same time?