Frequent loss of connection

karser · Jun 15, 2009, 12:53:49

Today I keep losing my connection every 30 seconds or less, 1st the adsl light goes out then the internet light goes, then a few seconds later it reconnects, is this an idnet problem or a bt problem? & anyone else having similiar trouble?

Rik · Jun 15, 2009, 12:58:25

It's more likely to be a BT problem. Loss of sync is caused by an issue with your router, line or the BT equipment at the exchange.

Sebby · Jun 15, 2009, 13:10:34

Loss of sync is likely to be a local issue. Could you run something like RouterStats so we can see what is going on with your SNRM?

tomharrison · Jun 15, 2009, 13:11:24

Agree with Sebby there (although it could still possibly be BT if it's just started happening), if possible are you able to post your line stats from your router?

karser · Jun 15, 2009, 15:40:09

thanks for the replies all, it appears to be behaving now, must have been bt doing some work.

Rik · Jun 15, 2009, 15:47:37

Always possible right now, there's the 21CN and WBC work in addition to routine maintenance.

JohnH · Jun 15, 2009, 17:44:46

Quote from: Rik on Jun 15, 2009, 15:47:37
Always possible right now, there's the 21CN and WBC work in addition to routine maintenance.

Not at my exchange.

Rik · Jun 15, 2009, 18:02:14

I have WBC already, 21CN I think is next year. After that, I'll move.

karser · Jun 15, 2009, 18:25:09

sigh I spoke too soon, just got home & its been out for half an hour, possibly longer

Rik · Jun 15, 2009, 18:26:52

Is it a case of lost sync or lost PPP?

Rik · Jun 15, 2009, 18:35:12

Checked with support, they're not seeing 30 second drops, you did lose sync from ~4:55-18:03, but it looks from their end like the router re-started. Are you connected with a cable or wirelessly?

karser · Jun 15, 2009, 21:11:20

Its been fine for a couple of hours since the outage, but now its playing up again, every minute or two the whole adsl is off for about 30 seconds then back on again, gonna have to ring idnet tomoroow myself if this persists, ty for taking the time to check with them.

Sebby · Jun 15, 2009, 21:22:42

Do you have a BT master socket with a removable lower half? If so, could you remove the plate carefully, and connect your router to the socket behind it?

karser · Jun 15, 2009, 22:04:13

I'll try that shortly, dont know if this is any help but this is my stats normally:

   DSL Status:     Up
              DSL Modulation Mode:      GDMT
              DSL Path Mode:      FAST
              Downstream Rate:      8128 Kbps
              Upstream Rate:      448 Kbps
              Downstream Margin:      8 db
              Upstream Margin:      25 db
              Downstream Line Attenuation:      11
              Upstream Line Attenuation:      4
              Downstream Transmit Power:      0
              Upstream Transmit Power:      0


PVC Connection

              Encapsulation:      RFC 2364 PPPoA
              Multiplexing:      VC
              QoS:      UBR
              PCR Rate:      0
              SCR Rate:      0
              Autodetect:      Disable
              VPI:      0
              VCI:     38
              Enable:      Yes
              PVC Status:      Applied

And this is what they are like when it goes off:

   DSL Status:     Down
              DSL Modulation Mode:      NOT TRAINED
              DSL Path Mode:      FAST
              Downstream Rate:      0 Kbps
              Upstream Rate:      0 Kbps
              Downstream Margin:      2147483640 db
              Upstream Margin:      25 db
              Downstream Line Attenuation:      11
              Upstream Line Attenuation:      4
              Downstream Transmit Power:      0
              Upstream Transmit Power:      0


PVC Connection

              Encapsulation:      RFC 2364 PPPoA
              Multiplexing:      VC
              QoS:      UBR
              PCR Rate:      0
              SCR Rate:      0
              Autodetect:      Disable
              VPI:      0
              VCI:     38
              Enable:      Yes
              PVC Status:      Applied

I've also ssent a message to idnet through the "contact us" option, hopefully i will hear something tomorrow (if i can stay connected long enough to open my email

)

Sebby · Jun 15, 2009, 22:23:18

Your normal stats are absolutely fine. But when you lose sync, the noise margin (show above as a large number, actually indicating a negative figure) is fallen a substantial amount, which suggests bursts of noise. It's worth trying the test socket for a while when you can to see if this solves it. If it does, your issue is with internal wiring, which we can hopefully help you to solve.

Simon · Jun 15, 2009, 23:03:00

Just a thought, but have you got any new electrical equipment which has been recently set up, like a DECT phone, or anything which could be affecting your internal wiring?

karser · Jun 16, 2009, 00:27:14

nope changed absolutely nothing this end, & for the last 90 minutes it seems to be working normally again, hope it lasts this time.

Rik · Jun 16, 2009, 10:19:41

The first thing IDNet are going to ask you to do is plug the router in to the test socket, if you have one. Then look at things like ring wires if you have multiple sockets and, finally, check with another router. Given your normal line stats, you've either got one huge noise source near you, or your router is tripping over.