intermitten issue

bagiabanmaybay · 10-05-2008, 17:47

Hi everyone,
My internet keeps disconnecting itself after every 30-60 minutes. It occurs everyday specially in the afternoon.
Does anyone know how to solve that problem. Thank in advance.
If it helps, I live in DD2 area in Dundee.

what? · 10-05-2008, 17:56

do you know which modem it is you have

next time conn drops open ie and go to 192.168.100.1
(if ntl log in using root and root)

post the signal levels here

(dont post mac address)

also, do any lights on the modem change whent he conn goes down?

if in dundee chances are you ahve a scientific atlanta btw, if thats the case, it will prob be a frequency issues, which can be changed by going to 192.168.100.1/gscan.htm, and changed freq start value too 331000000 or 339000000.

11-05-2008, 00:18

Quote:

Originally Posted by what?

do you know which modem it is you have

next time conn drops open ie and go to 192.168.100.1
(if ntl log in using root and root)

post the signal levels here

(dont post mac address)

also, do any lights on the modem change whent he conn goes down?

if in dundee chances are you ahve a scientific atlanta btw, if thats the case, it will prob be a frequency issues, which can be changed by going to 192.168.100.1/gscan.htm, and changed freq start value too 331000000 or 339000000.

If he is Telewest then he can have one of 5 Motorola modems and one of 4 Webstars and the above only accesses the EPC2100 not the DPX's.

Do not guess ask him to post what modem first.

moaningmags · 11-05-2008, 00:50

The browser addy for the dpx100 is 192.168.100.1

gscan.htm for dpx 100 to change frequency
gscan.asp for epc2100 to change frequency

bagiabanmaybay · 11-05-2008, 18:44

Thank guys for your help.
That is the signal I obtained.

Downstream Value
Frequency 331000000 Hz Locked
Signal to Noise Ratio 40 dB
Power Level 7 dB The Downstream Power Level reading is a snapshot taken at the time this page was requested. Please Reload/Refresh this Page for a new reading

Upstream Value
Channel ID 3
Frequency 25800000 Hz Ranged

Power Level 32 dBmV

My moderm is Motorola surfboard 5100. All the lights are normal when the internet disconnected. If i restart moderm and router, i can have internet. Otherwise, it takes like 30mins to 1 hour to connect itself.

what? · 11-05-2008, 19:13

have you ever tried it without the router?

direct ethernet connection from modem to comp.
if issue doesnt happen then, then you will know its a router issue.

all the levels are within the range. up power is close to border to worth keepin an eye on that but as long as it stays above 29 should cause any issues.

bagiabanmaybay · 11-05-2008, 19:17

I have tried to connect my computer to the router directly, but problem still persists.

---------- Post added at 18:17 ---------- Previous post was at 18:16 ----------

sorry i meant connect to the moderm directly

11-05-2008, 19:25

Quote:

Originally Posted by what?

have you ever tried it without the router?

direct ethernet connection from modem to comp.
if issue doesnt happen then, then you will know its a router issue.

all the levels are within the range. up power is close to border to worth keepin an eye on that but as long as it stays above 29 should cause any issues.

His power levels are perfect the is nothing wrong with them, Upstream power is 34dBmV and nowhere near the upper level of 58dBmV.

I believe you are confusing Upstream with SNR.

My own SB5100 has higher Upstream power levels and is working perfectly.

Downstream power level
Frequency 339000000 Hz Locked
Signal to Noise Ratio 39 dB
Power Level -4 dB

Upstream power level
Power Level 50 dBmV

If the problem happens when connected direct to the modem then the PC seems to be the likely culprit.

what? · 11-05-2008, 20:05

im talking about the lower power level limit, not the upper limit.
i beleive you are confused yourself.

11-05-2008, 21:13

Quote:

Originally Posted by what?

im talking about the lower power level limit, not the upper limit.
i beleive you are confused yourself.

Power levels on the Downstream on the Knowsley Network are -12 to +12 which is different to Langley and Bromley.

Plus Knowsley modems have no login pages.

All power levels well within operational parameters for the Knowsley Network.

------------------------------------------------
what you actually posted is below.

all the levels are within the range. up power is close to border to worth keepin an eye on that but as long as it stays above 29 should cause any issues.

--------------------------------------------------

You said Up power not down power and anything relating to staying above 29 can only relate to SNR.

You posted it not me, I am just correcting you as I am a Knowsley Tech and know the correct power levels for that Network, so the is nothing to correct me on thank you.

I believe possibly you may be an NTL Tech who knows about the Langley and Bromley Network but has little knowledge about the Knowsley Network.

what? · 11-05-2008, 21:33

thinking it 29 is snr, but he is actually below the lower threshold for the upstream power level of 35 in hindsight (check your knowledgebase), so this level defo has to be watched.

power for ds is -12 to 12
power for us is 35 to 55

though id doubt this would cause disconnection, it could cause slow speeds, and if dropping further down it could then begin to cause dc issues.

i posted it, so i have corrected both of us.

i am also a tech as well, and i realise my original error... will you realise yours?

11-05-2008, 21:37

Quote:

Originally Posted by what?

thinking it 29 is snr, but he is actually below the lower threshold for the upstream power level of 35 in hindsight (check your knowledgebase), so this level defo has to be watched.

power for ds is -12 to 12
power for us is 35 to 55

though id doubt this would cause disconnection, it could cause slow speeds, and if dropping further down it could then begin to cause dc issues.

i posted it, so i have corrected both of us.

i am also a tech as well, and i realise my original error... will you realise yours?

As it is a Motorola the is no problem with the power level and as I said above if the OP gets kicked off with the modem and router also without router just directly connected to the modem then it will more likely to be a Computer fault, possible failing NIC.

With a Motorola he is more likely to go offline if the power level exceeds 58 many come up in ISA and Redtools with lower power levels but they work fine.

what? · 11-05-2008, 21:45

well it could b modem, network or comp issue really.
and power levels for moto modem are same as for webstar.
the upstream parameters are 35 to 55. if you check your knowledgebase that will be confirmed for you. i take it you will have access to the knowledgebase as a tech.

As i said as well, this i doubt will cause dc's but is likely to cause some speed issues, so he is best to speak to tech support to arrange a tech visit.

obv 2 techies diff viewpoints doesnt help the OP much as he wont know whos advice to take so if anyone could confirm the correct info (whether it is mine or whydoineedatechs that would be great)

and jsut to let you know, i am not trying to turn this into a personal battle, just relaying info i believe to be correct and i apologise for my earlier error.
can i ask what you believe to be the lower parameter for upstream power?

11-05-2008, 21:57

Quote:

Originally Posted by what?

well it could b modem, network or comp issue really.
and power levels for moto modem are same as for webstar.
the upstream parameters are 35 to 55. if you check your knowledgebase that will be confirmed for you. i take it you will have access to the knowledgebase as a tech.

As i said as well, this i doubt will cause dc's but is likely to cause some speed issues, so he is best to speak to tech support to arrange a tech visit.

obv 2 techies diff viewpoints doesnt help the OP much as he wont know whos advice to take so if anyone could confirm the correct info (whether it is mine or whydoineedatechs that would be great)

and jsut to let you know, i am not trying to turn this into a personal battle, just relaying info i believe to be correct and i apologise for my earlier error.
can i ask what you believe to be the lower parameter for upstream power?

The webstar power level max is 61 not 58 and the Motorola is happy at the lower end, 35 and less because my modem works fine at the lower end and the higher end, the only time we have issue with power is at the higher end.

bagiabanmaybay · 12-05-2008, 21:24

Downstream Value
Frequency 331000000 Hz Locked
Signal to Noise Ratio 39 dB
Power Level 9 dB
The Downstream Power Level reading is a snapshot taken at the time this page was requested. Please Reload/Refresh this Page for a new reading

Upstream Value
Channel ID 3
Frequency 25800000 Hz Ranged
Power Level 55 dBmV

Thanks guy for your help, that was another signer when dropped. According to what you have discussed, problem must be from my computer-_-