Internet Disconnects after a few hours usuage
 

Can anyone help

Time Not Established Time Not Established 158 Critical (3) 82000200 No Ranging Response received - T3 time-out

This came from my modem log, is this bad?

My modem seems to disconnect after a few hours of usuage, a simple reset of the modem and ipconfig /renew works.

Re: Internet Disconnects after a few hours usuage
 

Don't know if I can answer the problem, but I know that anyone who can will probably need more detail, eg:

Modem type/model
Signal levels may help
Roughly where are you
Has BB been working OK previously, when did this start?

I'm not sure whether many of the NTL techies are still posting :(, but with the above info they should be able to advise.

Re: Internet Disconnects after a few hours usuage
 

Lots of NTL staff are still here. :) I'm sure someone will be able to shed some light on this for you.

Re: Internet Disconnects after a few hours usuage
 

Hi xathras,

Hazarding a guess from the error code you are using an NTL Home 200 ??

In general a T3 time out error usually relates to an upstream power level problem.

When this error happens and you can see this in the logs what is the upstream power ???

Have a looksie and see if it is fluctuating.

Ideally you shoudl be seeing between 35db and 61db, but between 58db and 61db is likely to give problems and may point to a poor upstream.

Unfortunately we cannot fix this here so you will need to call faults or Tech Support to book you an Engineer.

:D

Re: Internet Disconnects after a few hours usuage
 

Hiya, yes this is the modem in question, I am going to have to speak to them sometime, I tried today but I have to wait a week or so apparently due to system upgrades at ntl?????

Re: Internet Disconnects after a few hours usuage
 

Yep- http://www.cableforum.co.uk/board/sh...hlight=harmony

Re: Internet Disconnects after a few hours usuage
 

Mine keeps dropping every 5 minutes.

Re: Internet Disconnects after a few hours usuage
 

I have a Samsung box and noticed a similar problem this today. Checking my router I found that the IP was only getting leased for 1hr and when that time was up, the link was dead. I renewed the IP but same again, until I rebooted the STB and got the lease for the full 7 days.

There's nothing in System status to say they are aware od DHCP problems and wondered if any of the staff here had similar problems aor could shed some light

Re: Internet Disconnects after a few hours usuage
 

Could someone from NTL clarify? I thought the DHCP lease was for 7-14 days, but a recent post indicated it was 48 hours??

Re: Internet Disconnects after a few hours usuage
 

Over the past few months I have started to experience strange CM "disconnection" problems whenever I go away for a few days - just leaving my server running emule (very low activity levels).

I have a ntl home 200 Ambit modem and the SNR/upstream power levels look fine as per Robin walker's page. When I return from my trip the Sync/Rdy lights are on but there is no internet connectivity. If I remove my router and connect my laptop directly nothing happens either. However if I reboot the CM everything works fine again.

This last time I checked the CM Event Log and it said:
"No Ranging Response received - T3 time-out"
with a count of >15,000.
This corresponded to the same time that an auto-refreshing page (that I had left active on my server - National Rail departures board http://www.nationalrail.co.uk/ldb/livedepartures.asp) reported that it had lost the web connection several days ago.
What does the above msg mean? A quick google mentioned something about possibly losing an upstream connection but it didn't seem conclusive.

CS prompted me to reboot the modem (which of course worked as usual) and said that they'd have to send out an engineer if it happened again.
I asked them about the above msg and they then just said that the CM would need rebooting if I was away for a few days! :erm:

Re: Internet Disconnects after a few hours usuage
 

disconnect it and then reconnect it again that sometimes works???

Re: Internet Disconnects after a few hours usuage
 

Do you mean unplugging the coax cable from the CM?

I know that a CM power down/up will reconnect the CM - but I don't want it to disconnect in the first place! :)

Re: Internet Disconnects after a few hours usuage
 

I get the same problem. I have rang NTL many a time and they couldnt help me, at least I'm not the only one.

Re: Internet Disconnects after a few hours usuage
 

my docsdiag output:


System up time = 4 days 07h 52m 53.00s
Downstream channel ID = 0
Downstream channel frequency = 586750000 Hz
Downstream received signal power = -1.8 dBmV
Upstream channel ID = 6
Upstream channel frequency = 46384000 Hz
QoS max upstream bandwidth = 300000 bps
QoS max downstream bandwidth = 3072000 bps
SigQu: Signal to Noise Ratio = 30.5 dB
Cable modem status = Operational
Upstream transmit signal power = 48.3 dBmV
Date and Time = 2005-03-12,22:57:26.0
Configuration filename = cmreg-ntlhm200-high.cm

Re: Internet Disconnects after a few hours usage
 

Went out for the afternoon - and it failed again. :(

This time I checked my router and it still had its WAN IP address allocated. After a reboot it said 0.0.0.0 so DHCP from the CM wasn't working.

DOCSIS 1.0 Cable Modem 60678EU <<HW_REV: 1.15 ; VENDOR: Ambit; BOOTR: 3.13.2 ; S
W_REV: 2.67.1011 ; MODEL: 60678EU >>

System up time = 1 days 00h 12m 16.00s
Ethernet single-collision errs.1 = 4731
Ethernet multiple-collision errs.1 = 3616
Ethernet deferred xmits.1 = 43865
Downstream channel ID = 0
Downstream channel frequency = 402750000 Hz
Downstream received signal power = -2.8 dBmV
Upstream channel ID = 3
Upstream channel frequency = 25584000 Hz
QoS max upstream bandwidth = 300000 bps
QoS max downstream bandwidth = 3072000 bps
SigQu: Signal to Noise Ratio = 34.1 dB
Cable modem status = Operational
Upstream transmit signal power = 56.0 dBmV
Date and Time = 2005-03-13,17:25:58.0
Configuration filename = cmreg-ntlhm200-high.cm

Aside - Docsdiag sometimes doesn't work as somehow I can't always access 192.168.100.1 behind my router. It doesn't seem to follow any pattern - sometime it pings OK, other times &quot;destination unreachable&quot; ...

I'm so used to rebooting my CM that I forgot to try out the coax disconnect/reconnect idea - must try to remember that for next time!