Low SNR, whats causing it?

WotDa · 13 Mar 2007 at 20:05

Hi,

I know its night, and as such SNR drops anyway, on my old router it would drop from about 10-14 to 5-7. This would cause loads of disconnects, and plenty of errors aswell.

However, my new router, Linksys WAG200G, drops the SNR from 10 during the day to anywhere between 0 and 6. The weird thing is, it hasn't dropped connection, at all. Although I assume the errors are still in the thousands.

Now then, the other day with my old router I fixed the wiring in the house, this increased my SNR slightly but not enough to stop the disconnects at night, so I went to disconnet the extension wiring, checked the SNR, and it had dropped, connected it back in and it went back up.

So, what else could cause this?

Whilst i'm here, how do I find out the uptime of my DSL connection and router? I've searching Google, and in the web interface but can't find it anywhere. :confused:

Thanks in advance.

WotDa · 13 Mar 2007 at 21:58

Thanks, just went and tried with no phones and it was the same, I would try the test socket but there isn't one and it is currently in the master socket at the moment.

Flash, yes it does say 0db, and thats the very reason I took the screenshot. The router may be mis-reporting it, because I personally don't believe it could hang on to a connection with it that low. The only electrical thing near the socket, is the router, about 1 1/2 foot away.

tolien, not sure what you mean without filters and just a short extension. :confused:

NacthT, I increased my SNR on my old Speedtouch router by 3 and I kept the same sync.

And I was going to contact UKFSN first about getting it increased, but I though I had best check to see if I can do anything about it first.

WotDa · 13 Mar 2007 at 22:12

tolien said:
What it says on the tin. Use a short bit of cable to connect your router to the test socket, and don't use any filters.

Aha, so a test socket would be handy for that option then?

When were the test sockets forst introduced? This house is only about 35 years old and I expected it to have one, but it doesn't. :/

WotDa · 13 Mar 2007 at 22:47

NachT said:
Although, evan tho you can still hold the connection at extremely low SNR's, you'll probably start to get packet loss / errors / etc.

Thanks for the link will have a browse.

Re the errors, I can tell they're there, especially when downloading, but I can't see how many I've had.

Edit: Might it be worth getting onto BT about a possible fault with the line?

WotDa · 13 Mar 2007 at 23:08

NachT said:
In my case, i think it's my line. Line tests done by BT and enta on my line come back clean, for some reason.

Looks like an excuse for me to send an email to Enta instead of Jason tomorrow then.

I'm just worried that if they find out about it they'll whack interleaving on.

WotDa · 13 Mar 2007 at 23:19

I'll do a few rounds of emailing tomorrow then. Thanks.

Interestingly, I've never, ever had interleaving on, AOL must have felt the need to switch me to fast path/leave me on it, and Enta just left it as it was.

Although, saying that, AOL might have swapped it when I complained about being routed via New York, 200-300+ ping on my own clans server wasn't fun when the auto kick was set to 250..