Talk Talk intermittent issues

Apologies for double post, Talk Talk forum very quiet

At my parents house, they are on FTTC 38 down (2 up I think) (but only get about 15 down)

Must be < 50 metres from cabinet

But are getting insecure connection errors and intermittent loss of internet.

Talk Talk made us switch off router (HG633) for half an hour, and will monitor for 48 hours...

Some stats here, any obvious issues ? thanks in advance

DSL synchronization status:Up

Connection status:Showtime
Upstream line rate (kbit/s):2000
Downstream line rate (kbit/s):16495
Maximum upstream rate (kbit/s):13245
Maximum downstream rate (kbit/s):109888
Upstream noise safety coefficient (dB):22.5
Downstream noise safety coefficient (dB):28.4
Upstream interleave depth:43
Downstream interleave depth:1429
Line standard:VDSL2
Upstream line attenuation (dB):1
Downstream line attenuation (dB):3.7
Upstream output power (dBm):-7.3
Downstream output power (dBm):13.5
Channel type:Interleaved
DSL up-time:0 days 0 hours 3 minutes 18 seconds

In reply to a post by TheBaron:

Downstream line rate (kbit/s):16495

Maximum downstream rate (kbit/s):109888

Downstream noise safety coefficient (dB):28.4

Downstream interleave depth:1429
Line standard:VDSL2

Downstream line attenuation (dB):3.7

Downstream output power (dBm):13.5
Channel type:Interleaved
DSL up-time:0 days 0 hours 3 minutes 18 seconds

Looks like DLM has capped the downstream speed in order to raise the "noise safety coefficient" (SNRM) from the target of 6. It does this in response to disconnections.

DLM has also added interleaving due to errors.

Either your extension wiring is causing the problems, or there is a fault on the line, or both.

Thanks for quick response.

There is very little extension wiring.

From the master socket dangly filter, 1 line to the router, another to the phone.

I'll try swapping some cables out anyway.

They say they ran some tests and the line was OK... Had to call me back on a mobile while they ran them.

I'd be suprised if it was very short lengths of internal but worth a shot.

The main problem is the disconnections, fix that and the speed should return.

Is the phone line noisy? It should be silent.

The phone line is perfect and silent.

The router sits on top of the PC . I'm going to move it and see if that helps

Has the ring wire been removed at the master if there are any wired-in extension sockets at all?

Is the phone connected direct to the dangly filter or is there a plug-in extension cable between them? Similarly with the router.

Have they got a Sky box?

No wired in extensions, so no interference with ring wire AFAIK.

1.5 metre length of cable to each of router/phone from dangly filter, single panasonic phone (with 3 cordless extensions)

Cat 5 from router into powerline plugs > 2 smart tv conx 1 pc conx

No sky box.

I moved the router last night away from the PC in case that caused interference and changed the filter and wires , so I'll have a look this morning and see how well the connection held up.

Thanks

The line is unable to hold a connection for more than a few minutes, often just seconds. Talk Talk will send an engineer on Wednesday.....

further installments to follow........

In reply to a post by TheBaron:

further installments to follow........

Or even a re-installment!

Indeed. Having looked at the email from TT this is not an Openreach engineer but a Brightsparks (Talk talk ?) engineer.

I presume he checks the router/filter/extensions. But I'm pretty sure its a line/exchange fault, We will see.

So Brightsparks came today and within 2 minutes confirmed not a problem in the house and a BT OR Engineer will investigate within 48/72 hours

In reply to a post by TheBaron:

So Brightsparks came today and within 2 minutes confirmed not a problem in the house and a BT OR Engineer will investigate within 48/72 hours

Powerline plugs ,mmm this could be the source of interference also, but may as well wait and see what if anything the BT or bod finds

Powerline plugs hmm a possibility, I wasnt there but hopefully he switched off/unplugged from the home network, he didnt use home pc so must have plugged his own laptop/diagnostic kit direct to router ? waiting game now.

On the upside my new plusnet connection is 3% faster down, 11% faster up and pings dropped from 11/12 to 7

So Brightsparks came today and within 2 minutes confirmed not a problem in the house and a BT OR Engineer will investigate within 48/72 hours

You would possibly not be surprised to hear that it is quite common for the OR bod to arrive and find the issue IS in the property.

Good luck.

In reply to a post by Zarjaz:

So Brightsparks came today and within 2 minutes confirmed not a problem in the house and a BT OR Engineer will investigate within 48/72 hours

You would possibly not be surprised to hear that it is quite common for the OR bod to arrive and find the issue IS in the property.

Good luck.

I'll let you know the outcome asap.

Worth noting homeplugs / powerplugs cause my fibre optic connection with BT, which has a noise margin of 14db (ie can tolerate a lot of interference), synced at full 55Mbps to drop out at least once a day. Turning them off resolves this.

There is an overlap of the frequencies used by homeplugs and VDSL2+

With wireless AC there is really no excuse to be using powerline, unless there is absolutely no wireless coverage in a part of a property. In this case, get a repeater not a homeplug IMO.

Edited by ukhardy07 (Thu 09-Jun-16 23:30:45)

Thanks.

The homeplugs feed two smart tvs, which do have wireless so I'll try and see if the signal is strong at the tellys

In reply to a post by TheBaron:

In reply to a post by Zarjaz:

So Brightsparks came today and within 2 minutes confirmed not a problem in the house and a BT OR Engineer will investigate within 48/72 hours

You would possibly not be surprised to hear that it is quite common for the OR bod to arrive and find the issue IS in the property.

Good luck.

I'll let you know the outcome asap.

And the outcome is I expected, a problem with the line card in the cabinet , this has been fixed/exchanged or whatever and we now have the following

DSL synchronization status:Up
Connection status:Showtime
Upstream line rate (kbit/s):1999
Downstream line rate (kbit/s):39997
Maximum upstream rate (kbit/s):24251
Maximum downstream rate (kbit/s):95080
Upstream noise safety coefficient (dB):31.1
Downstream noise safety coefficient (dB):17.6
Upstream interleave depth:1
Downstream interleave depth:1
Line standard:VDSL2
Upstream line attenuation (dB):0.9
Downstream line attenuation (dB):3
Upstream output power (dBm):-9.5
Downstream output power (dBm):13.3
Channel type:Fast
DSL up-time:0 days 8 hours 54 minutes 29 seconds

On ookla Ping is now 9ms , downstream 37.67 and upstream 1.95 so all good.

All good in the end then ....