Weird SNR and attenuation numbers.

[BCO]

Been having really slow and laggy connectivity lately on my 512 line, so I finally got round to checking my SNR and attenuation, and the results are a but weird.

Downstream I have good SNR and terrible attenuation (29.0dB SNR, 51.0dB att) and upstream I have useless SNR and good attenuation (1.5dB SNR, 22.0dB att.)

What could be the cause of this?

 

[UnUnOctium]

Could be that you're reading it wrong. Or (more likely) firmware is bugged

 

[BCO]

Dunno, I'm pretty sure I'm reading it right:

http://mybroadband.co.za/photos/showphoto.php?photo=18411&cat=500

Will look into the firmware issue.

 

[BCO]

Just updated the firmware and the numbers are the same.

 

[UnUnOctium]

Wth, lol. No way you can achieve that SNR with that atten. Unless your router has a transmit power above the standard (s). Give some more details on the configuration.

 

[BCO]

Wth, lol. No way you can achieve that SNR with that atten. Unless your router has a transmit power above the standard (s). Give some more details on the configuration.

What other kind of info do you need? I'm not too well-versed in these things

 

[UnUnOctium]

What other kind of info do you need? I'm not too well-versed in these things

Sync speed (both ways), modulation type. Make & model.

 

[BCO]

Sync speed (both ways), modulation type. Make & model.

Ok sweet, will check when I get back home this evening.

 

[BCO]

K, it's a Billion BiPAC 7401VGP

Modulation type is (I think) G.Dmt.BisPlusAuto
Not sure where to check the sync speed.

 

[UnUnOctium]

weird, sounds like it's a router bug/fault. If it has always been doing this, then most likely.

 

[BCO]

Ok, got my work router connected up. Now I have downstream SNR 25.5dB Att 46.5dB; upstream SNR 13 dB Att 2.55 dB.

Seems a little better. Does this mean I need to get a new router?

 

[gluon]

Which router are you testing with?

Every make of router will give different results, depending on the chipset it uses.

 

[BCO]

Using a Netgear router now. Not sure of the actual model.

 

[UnUnOctium]

Ok, got my work router connected up. Now I have downstream SNR 25.5dB Att 46.5dB; upstream SNR 13 dB Att 2.55 dB.

Seems a little better. Does this mean I need to get a new router?

Looks better. If this router doesn't give problems, then I'm sure you know where the fault is

 

[gluon]

The older Netgear DG843G v1-4, GT have a very good broadcom chipset which seems to help alot with low SNR and high Attn. So given your high Attn it might be a good idea to get yourself something like a Netgear DGN2000 and ditch the Billion as it's clearly not handling the Line attentuation well.