Modem not passing data

[Visibleman]

Hi all,
I've noticed over the last week or so that our internet connection (10mb-Standalone) keeps dying, not totally as the sync + RDY lights are still lit, but the connection just doesn't want to pass any data.
I did first think it was my netgear router, but i discovered (even directly connected to the modem via ethernet) that you can't access the modems (03/04 Ambit 250) admin pages - ie/opera/FF just errors out.

Rebooting seems to fix this for a while but it's a bit hit or miss for how long the connection stays up, although i have noticed that it mostly seems to "freeze" if i attempt to max the connection out.

Also i did think it might be the modem running a little hot, especially with the recent weather, but it only seems to be a little warm and certainly not hot or anything.

Am i right in thinking that the modem has developed a fault (VMs status page isn't showing any faults in the Bedford area)?

Modem Info -

Downstream Receive Power Level : 3.01 dBmv
Downstream SNR : 32.78 dB
Upstream Transmit Power Level : 58.50 dBmv

Cheers for any help

---------- Post added at 16:13 ---------- Previous post was at 15:59 ----------

just to add, it seems actually the sync light stays lit and the RDY goes on and off and flashes when the connection drops - would that suggest that theres a fault at VMs/UBR end rather than the modem being duff?

Upstream power is to high, you need a tech.

[Turkey Machine]

Originally Posted by Visibleman

Hi all,
I've noticed over the last week or so that our internet connection (10mb-Standalone) keeps dying, not totally as the sync + RDY lights are still lit, but the connection just doesn't want to pass any data.
I did first think it was my netgear router, but i discovered (even directly connected to the modem via ethernet) that you can't access the modems (03/04 Ambit 250) admin pages - ie/opera/FF just errors out.

Rebooting seems to fix this for a while but it's a bit hit or miss for how long the connection stays up, although i have noticed that it mostly seems to "freeze" if i attempt to max the connection out.

Also i did think it might be the modem running a little hot, especially with the recent weather, but it only seems to be a little warm and certainly not hot or anything.

Am i right in thinking that the modem has developed a fault (VMs status page isn't showing any faults in the Bedford area)?

Modem Info -

Downstream Receive Power Level : 3.01 dBmv
Downstream SNR : 32.78 dB
Upstream Transmit Power Level : 58.50 dBmv

Cheers for any help

---------- Post added at 16:13 ---------- Previous post was at 15:59 ----------

just to add, it seems actually the sync light stays lit and the RDY goes on and off and flashes when the connection drops - would that suggest that theres a fault at VMs/UBR end rather than the modem being duff?

Power levels are fine, the upstream power is a touch high, but otherwise within acceptable limits, the SNR a bit low but still acceptable. The Ready light dropping on and off isn't a good sign though, the modem could possibly be dying.

Have you tried disconnecting and re-connecting the coax feed into the modem (while it's off of course), and making sure it's tight?

[Ignitionnet]

Originally Posted by Turkey Machine

Power levels are fine, the upstream power is a touch high, but otherwise within acceptable limits

58.5dBmV is not acceptable upstream power, should be 55dBmV or under.

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

[Visibleman]

Yup, reconnected and double checked all of the cables.

So need an engineer?

Just to add, what's the most likely cause of the high upstream power level?

[Visibleman]

Just noticed that since the temperatures have dropped from earlier today, the upstream power level is a lot lower -

Downstream Receive Power Level : 6.47 dBmv
Downstream SNR : 35.67 dB
Upstream Transmit Power Level : 50.50 dBmv

And the connection seems to be pretty solid now. Would this point towards equipment being effected by heat/temperature? And is it still worth phoning tech?

cheers

[chickendippers]

Could be, is the green box at the end of your street or in nearby streets in direct sunlight?