Horrible Internet Speed

[Monkeynut]

As of last night and all day today the internet in my house has taken a nosedive in speed - the high res screenshot thread is like watching paint dry, normally the images load fairly speedily.

I've got a BT Voyager 2500V wireless router, here's what the line status is:

Line Mode G.DMT Line State Show Time
Latency Type Interleave Line Up Time 00:07:46:18
Line Coding Trellis On Line Up Count 2

Statistics Downstream Upstream
Line Rate 224 Kbps 448 Kbps
Noise Margin 28.4 dB 20.0 dB
Line Attenuation 54.0 dB 27.5 dB
Output Power 12.9 dBm 12.3 dBm


You can see how slow the downstream is! Any numbers here look amiss as I don't understand what it all means.

Thanks in advance.

 

[tolien]

Your downstream SNR margin's really high, either because something thinks your connection's unstable and the target SNR margin's been increased or something else.

Tried restarting the router?

 

[Rroff]

The SNR will be high with a sync that low tho... the attenuation is quite high so probably a long line...

Its possible a one off low sync event has occurred - the line might come back upto speed over 1-5 days or you might need to get the ISP to reset DLM.

 

[tolien]

The SNR will be high with a sync that low tho...

That was the point I was making...

A low sync event shouldn't drag the target SNR margin up like that, it would take some serious instability (or it'll clear up when the modem syncs up).

 

[Monkeynut]

I've switched to the old BT Homehub (the first gen white one) and the downstream has jumped to 2,100kbps!

When I took the old Voyager router it's PSU was leaking a strange green liquid.