Intermitten issue
 

Hi,
In the last couple of weeks, my internet has been working horribly. It keeps disconnecting after every 30 minutes, sometimes after 5 minutes. Is there anyone can help me to solve this problem. Thanks in advance.

Re: Intermitten issue
 

Hi what type of modem do you have and what are the levels to the modem .Find out by gong to 192.168.100.1 password root .This will only work with the ambit modems :)

Re: Intermitten issue
 

It shows a lot of things that i can not understand :(

Re: Intermitten issue
 

We need the upstream level the downstream level and the snr
What type of modem is it ?

Re: Intermitten issue
 

It's Motorola SB5100 SURFboard

Re: Intermitten issue
 

A bit rusty on this modem but there is a section i think its signal levels this should give the upstream and downstream .At a guess it could be the modem if the levels are ok :) Do you have cable tv ? and if you do ,do you have a samung box or v+ box if the bb goes down does the light on the samsung flash or the online light on the v+ go out ?:)

Re: Intermitten issue
 

I have a samsung box but it is in my flatmate's room, I can not check it now. Is there any relation between the modem and the box??

Re: Intermitten issue
 

192.168.100.1/gscan.htm (if htm doesnt work try asp)
check the starting frequency

if its anything other then 331000000 then delete whats in there and put it in

then click the button to restart your modem

then reboot pc and modem.

(you'll need to remove any routers ur using before u can get onto that site)

let me know how u get on :tu:

Re: Intermitten issue
 

Both of them donot work:(

Re: Intermitten issue
 

is the frequency okay? set to 331000000?
or can u not access the page?

set a static ip

control panel, network connections
right click on lac
properties
double click on internet protocol
tcp/ip

set ip address to 192.168.100.11
subnet mask 255.255.255.0

then try and access it :tu:

Re: Intermitten issue
 

it is 331000000 now

Re: Intermitten issue
 

go to start run type ncpa.cpl
right click on local area connection
the tcp and set a static ip of
192.168.100.11 and subnet mask of 255.255.255
and try it

Re: Intermitten issue
 

are u using a router?

Re: Intermitten issue
 

no, i found it, it is on 192.168.100.1/config.html

Re: Intermitten issue
 

does that take you onto the config page or a page displaying the starting frequency?

either way, what is the startin frequency/downstream frequency?

Re: Intermitten issue
 

and the frequency is still 331000000 though

---------- Post added at 19:47 ---------- Previous post was at 19:45 ----------

downstream F is 18800000 and upstream F is 331000000

Re: Intermitten issue
 

okay, are you on the config page or the page displaying starting frequency

what are the rest of the levels...

when you drop the connection do the lights change and how do you get it back?

reboot the modem/comp, or does it come back automatically

Re: Intermitten issue
 

can you copy and paste the results

Re: Intermitten issue
 

Downstream Value
Frequency 331000000 Hz Locked
Signal to Noise Ratio 40 dB
Power Level 4 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 1
Frequency 18800000 Hz Ranged

Power Level 52 dBmV

---------- Post added at 19:50 ---------- Previous post was at 19:49 ----------

to what?: sorry i don't understand you

Re: Intermitten issue
 

erm... all looks fine.

what happens with the lights and how do you get the conn back

Re: Intermitten issue
 

when the connection is off, online light is off too, send and receive light is blinging, after a while they are automatically on.

Re: Intermitten issue
 

modem will be rebooting itself

possibly due to thos power levels spiking way out of range when connection drops

do as vm tech says and check those levels when your off

if downstream power is going out of the range -12 to 12 or upstream out of range 29 to 56 (more looking for way out than just outide) then thats what dropping ur conn.

how long does the conn normally stay down for?


let us no when you get those results with the connection off :tu:

Re: Intermitten issue
 

it stays down for 2-5 minutes

---------- Post added at 20:03 ---------- Previous post was at 19:59 ----------

by the way, this problem occurs mostly in the afternoon at about 1-3 PM.

Re: Intermitten issue
 

best to check it at that time tomorrow then

Re: Intermitten issue
 

ok thank guys for all your help

Re: Intermitten issue
 

np. :tu:

Re: Intermitten issue
 

It works well now, thanks guys for your help

Re: Intermitten issue
 

Downstream Value
Frequency 331000000 Hz Locked
Signal to Noise Ratio 40 dB
Power Level 2 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 50 dBmV

This is the status when the net disconnects

Re: Intermitten issue
 

Hi guys, my internet worked properly for a few days and now it keeps disconnecting itself again. When it is off, I go to 192.168.100.1 and here is the result, Could you please check it for me
Downstream Value
Frequency 331000000 Hz Locked
Signal to Noise Ratio 39 dB
Power Level -1 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 1
Frequency 18800000 Hz In Progress

Power Level 14 dBmV

Thanks in advance

---------- Post added at 19:24 ---------- Previous post was at 19:08 ----------

5 minutes later, it is another one
Downstream Value
Frequency 331000000 Hz Locked
Signal to Noise Ratio 40 dB
Power Level -1 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 In Progress

Power Level 27 dBmV

Re: Intermitten issue
 

Hi,
I am new on this forum and only found it because I am having similar problems. I have been with NTL for a long time and have a Terayon modem with 4 vertically placed LEDs on the front. Frequently the CABLE LED turns of and the modem starts establishing the connection again. Clearly there i sno internet connection then. But even if the cable connection seems to be up, I still have frequent problems with webpages. It looks like it downloads a quick burst of bytes and then it stops for a while. When downloading files it always goes in waves, where the bottom of the wave is 0 kbs for a couple of minutes.
Traceroute usually works but can sometiumes not resolve the www address. While not being able to get webpages often I can still ping or traceroute websites. I have got my DNS from the router but changing to 194.168.4.100 and 194.168.8.100 makes no difference at all.
I cannot get into the modem to see diagnostics, I have tried the DIOCSIS tool available from Robin ?? and can't get it to work either. This is all with the router bypassed and the firewall down.

I am basically out of ideas and don't trust the modem whatsoever. Any ideas how to progress. BTW the Samsung digibox is usually OK apart from a rare (overheat) crash.

Gerard

Re: Intermitten issue
 

:welcome: to the forum hoef,
It sounds like you need your modem replacing, terayons have known problems with the QAM256 modulation that VM are using.
Ring tech support.

Re: Intermitten issue
 

I have the same problem with my Terayon TJ210. After reading this thread yesterday afternoon (thanks for the info), i called tech support, and once i explained my issues and told him which modem i had, and the guy ordered me a new modem, which should arrive on Tuesday or Wednesday through the post. I just hope setting it up is as easy. Is it more or less just a case of plugging it in, or will i need to re-register and not? :)

Re: Intermitten issue
 

as far as I know you will need the new modem's MAC address registered against your account, I seem to recall this can be done over the phone - presumably full instructions come with the modem :)

Re: Intermitten issue
 

Yeah, my new modem arrived yesterday, while i was at work, so i had to collect it today from the post office. Got home about 30 mins ago, unpacked it, connected it all up, and gave technical support a call on the number given on the accompanying letter, to register the MAC address, only to be told i wouldn't be able to register my MAC address until Saturday morning, because of some database issue they are having. :bigcry:

Re: Intermitten issue
 

Yes, Unfortunately ex-ntl areas are in the process of having the billing systems upgraded, so everything from changing package to BB registration is unavailable

Re: Intermitten issue
 

This is strange. After being told i couldn't register my new modem, i plugged the old one back in, and it was still sluggish (as i expected it would be). So i decided to uninstall some programmes i don't use on my PC. One inperticular, called Hamatchi, which i installed a few weeks ago, to play Rome: Total War. After removing Hamatchi, my connection seems to have returned to normal. No browsing issues, instant messengers are working fine, and i even downloaded a small file, with no problems. Now i feel like a bit of a burst ****.