Wireless network question

[vxc]

that diagram is amazing.... lol

[Tom]

that diagram is amazing.... lol

Why thank you that's 5mins on Paint for you

[Tom]

That's how I am setup at home too big boy.

Next you need to get one of the routers to VPN to the Uk so that it presents a Uk IP and then you can throw a vodafone suresignal box on it and have your own mini Uk call transmitter with a 15m range for £20!

This sounds interesting. My router is an SFR neufbox, which I need to use as our landline is a VOIP phone connected to the router. Can I fiddle with it to make it VPN to the UK, or do I need a different router to do that?

Also, I'm not that clued up on these VOIP phones that go through the router as I'm fairly sure they're not allowed in the UK. Can you configure a normal ADSL wireless router modem (like the Netgear I've got spare in a box) so that one of the Ethernet ports becomes this VOIP phone?

<PS I know it's a VOIP phone as if I plug a phone straight into the wall there's no dial tone>

[Sanjøy]

Last time I played with a french router it was a wanadoo one that did all sorts of silly blocking. I would imagine one of your other wireless doofers could probably do it.

You could simply VPN from the laptop to get iplayer on that.

You could buy one of these and then get an account with say these guys and that is your UK number voip connection. People can call you for free from the UK and you have pretty cheap calls out. Simply plug the SIP phone in to your router or infact any router and it will work. If you have an Iphone just download a free SIP Phone client and jobs a good un. (Need an iphone 4 so that it can run in the background, I have SIP softphone which uses badges to push and it kinda works)
Apologies for not putting you on my home voip server not had a chance since R arrived.

[Tom]

Right, we seem to have developed a problem. The internet connection keeps dropping out, maybe every 10 minutes or so.

I recently changed the network setup. The phone line has been extended from the user socket in the wall, into a 0.5m patch cable, and then into a 100m length of buried cat5 cable, and then another patch cable into the microfilter and into the modem.

The problem is the downstream SNR. It's jumping up and down between 0.5dB and 34dB. I've read into it enough to know this number needs to be at the top end of this margin, and below about 12dB will cause the connection to be dropped continually. The attenuation is c. 36dB which I think is fine for the 2Meg connection we have.

Question is, would my new setup (essentially 3 patch cables about 100m long) be causing the downstream SNR to vary like this? My feeling is that it shouldn't, because if it was the SNR would be permanently low.

We've had some stormy weather over the last few days, and I'm looking for confirmation that it's not something I've done before I call up SFR and start harassing them for a new box or to fix a line fault. Could water ingress in the bad weather be causing this (in the junction box on the road)?

[Sanjøy]

Right, we seem to have developed a problem. The internet connection keeps dropping out, maybe every 10 minutes or so.

I recently changed the network setup. The phone line has been extended from the user socket in the wall, into a 0.5m patch cable, and then into a 100m length of buried cat5 cable, and then another patch cable into the microfilter and into the modem.

The problem is the downstream SNR. It's jumping up and down between 0.5dB and 34dB. I've read into it enough to know this number needs to be at the top end of this margin, and below about 12dB will cause the connection to be dropped continually. The attenuation is c. 36dB which I think is fine for the 2Meg connection we have.

Question is, would my new setup (essentially 3 patch cables about 100m long) be causing the downstream SNR to vary like this? My feeling is that it shouldn't, because if it was the SNR would be permanently low.

We've had some stormy weather over the last few days, and I'm looking for confirmation that it's not something I've done before I call up SFR and start harassing them for a new box or to fix a line fault. Could water ingress in the bad weather be causing this (in the junction box on the road)?

If you were closer to home I have a widgetygizmo that tells you if you cable is submerged. Skype me later big boy.

[robin]

Move the microfilter and ADSL modem back to being plugged straight into the master socket or whatever the french equivalent is. If the SNR recovers then you know it's your problem and no point wasting SFR's time. Also note whether the SNR is now stable or still fluctuating but in a different band. If it's fluctuating anyway then adding the extra cable runs (increased attenuation and increased noise introduced by all the impedance discontinuities created by the various cable junctions) might just have pushed it over the edge.

Cheers,
Robin