ADSL & Netgear Nightmare! Please help.

I hope that someone can help with my question and would like to thank you in advance for your help.

I currently have a 4MB ADSL line with sure cable & wireless Jersey (uk). I had been using a netgear dgn2000 router that until the last few days has been great. I had been getting d/l speeds of 3.92 with u/l of 512.
however 4 days ago it crapped out! changed this router for another of the same model. changed the firmware, replaced all the cables & microfilters ect.... still no joy. took it back to shop and swapped it for the Netgear DGN3500.. same problem with this one.. however my Older Netgear DG834G v.3 works fine.
my isp say nothing has changed and no work has been done in my area. however now i am only getting d/l speeds of 2.63 and uploads speeds of 0.23! Im at my wits end and my isp wants to charge me £78 just to check the lines in my house. (which I know are not at fault)

It would be useful if you can post the line stats with your normal and substitute routers - sync/attenuation/snrm


Another thing worth a mention, but it sounds unlikely in your circumstance (as you've tried different routers) is there is a quite well known issue with the LAN ports with Netgear DGN2000. Google DGN2000 lan ports to see others having problems.

I came across this with one of my clients recently. The confusing thing is the port doesn't completely fail it just runs very poorly. Could be quite a hard problem to find as you would tend to blame the ISP etc.

Swapping the network cable to another port is worth trying - on the router I was dealing with 3/4 ports had problems. Wireless is unaffected. After a little struggle with Netgear it was swapped under warranty.

Edited by b4dger (Sun 15-Aug-10 12:36:53)

Thanks for your response.
Port Status TxPkts RxPkts Collisions Tx B/s Rx B/s Up Time
WAN PPPoA 329809 331767 0 3474 10103 04:44:11
LAN 10M/100M 11619 0 0 55 0 04:45:10
WLAN 54M 322301 325373 0 10252 3455 04:45:00

ADSL Link Downstream Upstream
Connection Speed 3072 kbps 608 kbps
Line Attenuation 45 db 13 db
Noise Margin 4 db 12 db

thats for the netgear DG834G v.3

i cant post for the dgn3500 as it wont even connect... it just gets stuck on the negotiating stage.

In reply to a post by clecornu1:

i cant post for the dgn3500 as it wont even connect... it just gets stuck on the negotiating stage.

What does it say in the logs? Are you sure you've got the correct username/password? Or are you saying it doesn't even sync?

The routers aren't getting bricked when you are upgrading the firmware are they?

You must have to have used them originally to download the upgrade firmware from the net surely, as the original router was

....... crapped out