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[GigabitEthernet]

Are you certain your issues are down to that cable?

[Dray]

@dray - re: "cca" - not ideal of course, but mine are only 0.5m long, so the resistance is hopefully low anyway (esp compared to my 4+ miles of copper). out of interest, how did you discover the composition of the two cable types?

I researched the supplier based on the packaging that Kenable sent me and found a description of the construction, then asked Kenable to confirm. Mr Telephone did a video on various cables including a flame test which caused a magnesium alloy cable to flare up, but the Tandy cable was fine.

[Dray]

Are you certain your issues are down to that cable?

Yes it's happened on other ones I've tried, and it seems to be ok now.

[Dray]

So wait, I want stranded cables?

Yes, I think they are designed to be used to connect devices to sockets, whereas solid cables are for infrastructure connections between sockets.

[Weaver]

I use the same straight-thru rj11 faceplates from the A&A shop.

I had a very bad performance experience with some nasty ebay cables made out of STP CATx with RJ11 plugs put on by hand v badly, the twist wasn't maintained right up to the ends. Changing to the kenable ebay ones (I think), 0.5 m, made a very important improvement in DS sync rate, >20%.

But we digress, as this is would be the same for both modems, so while these are nice tips, I can't see how this addresses the issue.

Unless...

Mains cables touching / near to one of the rj11-rj11 cables, or the modem-to-router ethernet cable?

[Dray]

But we digress, as this is the same for both modems

We don't know that, do we?

[GigabitEthernet]

I've just ordered one of the Tandy cables.

[Weaver]

But we digress, as this is the same for both modems

We don't know that, do we?

Apol brain error, I meant to say “this would be the same for both modems”. Assuming the cables are the same, and I'm also correcting my earlier assumption because indeed the electrical environment might not be the same because of proximity.

A further thought, internal wiring run? Have we asked about that? Could internal wiring be different, one cable up to NTE5 might follow a different route? [Extreme hypothetical example where a cable might even god-forbid be touching mains. (which I have seen personally)]

Could drop cables be different externally, joints, age, route, length?

BT change-point-of-entry was my dearest friend here.

[CrazyTeeka]

Tandy cables look like the cable of choice. Might get some.

Out of interest, if I used some BT drop cable (about 0.5m) and stuck RJ45/RJ11 on either end, does that also work well?

[Weaver]

Out of interest, if I used some BT drop cable (about 0.5m) and stuck RJ45/RJ11 on either end, does that also work well?

I'm not sure - one for Burakkucat or the other learned ones here.

Also need to consider your point about RJ45 instead of RJ11. At the modem end? Does RJ11 not fit into your modem properly? V odd if so.

[CrazyTeeka]

Out of interest, if I used some BT drop cable (about 0.5m) and stuck RJ45/RJ11 on either end, does that also work well?

I'm not sure - one for Burakkucat or the other learned ones here.

Also need to consider your point about RJ45 instead of RJ11. At the modem end? Does RJ11 not fit into your modem properly? V odd if so.

RJ11 end would plug into modem, RJ45 end would plug into DSL face plate. I prefer this, too many cables stick RJ11 on both ends. 

[burakkucat]

Out of interest, if I used some BT drop cable (about 0.5m) and stuck RJ45/RJ11 on either end, does that also work well?

I'm not sure - one for Burakkucat or the other learned ones here.

Hmm . . .

I have a spare length (~2 metres) of CW1411 specification cable (Drop Cable 10) stashed away in the grotto. I would not attempt to fit RJ11/12 and RJ45 plugs to such cable.    It is very much like structured cabling i.e. rigid, not stranded, and also incorporates three steel "strength members" within the outer sheath. (More than once I have been "spiked" in the paws by one of those "strength member" wires. Evil, nasty things!    )

Attached, below, is a copy of the data sheet for such cabling.

[CrazyTeeka]

I have a spare length (~2 metres) of CW1411 specification cable (Drop Cable 10) stashed away in the grotto. I would not attempt to fit RJ11/12 and RJ45 plugs to such cable.    It is very much like structured cabling i.e. rigid, not stranded, and also incorporates three steel "strength members" within the outer sheath. (More than once I have been "spiked" in the paws by one of those "strength member" wires. Evil, nasty things!    )

This is my drop cable... 

[burakkucat]

Looks familiar! 

Serious question: Are you sure it has solid copper conductors and not copper coated steel?    (I was "caught out" like that, some years ago, with a spool of "CW1308 cable".)

[CrazyTeeka]

Serious question: Are you sure it has solid copper conductors and not copper coated steel?    (I was "caught out" like that, some years ago, with a spool of "CW1308 cable".)

Just examined a cross section of the copper wire, looks like copper inside. Did not see anything that looked like steel.