cable signal levels
 

i have read the thread on cable signal levels

but mine reads as follows does this mean there is a problem with my setup
i am running 3 pc's and a laptop on 20meg connection i tried the cable modem config and got this result with all but the laptop.

Downstream Lock : Locked
Downstream Channel Id : 52
Downstream Frequency : 307000000 Hz
Downstream Modulation : QAM256
Downstream Symbol Rate : 6952 Ksym/sec
Downstream Interleave Depth : taps12Increment17
Downstream Receive Power Level : 0.1 dBmV
Downstream SNR : 37.9 dB

and upstream.

Upstream Lock : Locked
Upstream Channel ID : 2
Upstream Frequency : 47408000 Hz
Upstream Modulation : QAM16
Upstream Symbol Rate : 2560 Ksym/sec
Upstream transmit Power Level : 59.0 dBmV
Upstream Mini-Slot Size : 2

any advise please :)

oh btw i have vista on the laptop sp1

Re: cable signal levels
 

Your upstream transmit power is too high at 59.0 but have you got any issues with your broadband?.

If your experiencing slow speeds, cut outs etc etc then you will need a tech visit to sort out those power levels.

Re: cable signal levels
 

Thanx yeh i am getting slow speeds but i thought that was due the number of pc's on it i am also getting lost connexion having to reboot the cable modem and the router and restart the laptop

Re: cable signal levels
 

Is miles out, looks like the move to the new DOCSIS 3 50Mbit ready network broke your service.

Re: cable signal levels
 

BEEN ON TECH SUPPORT and they said there is nothing wrong it could be my wireless router :s i also asked about the new wireless n and whether they work with a "g" wireless adapters but didnt get much sense out of them

Re: cable signal levels
 

What is the recommended level for Upstream transmit Power? Mines at 51.5 (on QPSK).

Re: cable signal levels
 

i read this first Zhadnost

http://www.cableforum.co.uk/board/12...al-levels.html

Re: cable signal levels
 

Tech support are talking out of their backsides, upstream transmit power on your line should be below 55. 59 is miles out.

Sounds fairly normal for the offshore tech support though, clearly your router's fault that the modem keeps falling offline and its' signal levels will be showing as red on their systems that they don't bother using often as it might distract from obsessive pursuit of the all-knowing flowcharts.

Re: cable signal levels
 

Contact tech support by the newsgroups and they will book an engineer for you

Re: cable signal levels
 

where are the news groups as i havn't come across one. Also i will get my son who is a network engineer to get on to them but he calls them dumb to put it a polite way

cheers

Re: cable signal levels
 

Newsgroups are at news.virginmedia.com

and the group you want to subscribe to is:-

virginmedia.support.broadband.cable


If your not familar with newsgroups read up on them first via google then post a msg to this group above about your problems/transmit power and they will respond to you and im sure will book an engineer for you to come out and adjust the power levels.

Re: cable signal levels
 

You may also find this link useful in setting up the newsgroups you need.

http://www.virginmedia.com/customers...setting-up.php