Router does not resync when SNR drops

I have experienced 2 evenings in a row where the throughput of my ADSL2+ connection just ground to a halt, when I checked the SNR had dropped to around 6.6db vs 7.5 db during the day (sync speed around 15300).

Rebooting fixed this as the router re-synced at a lower rate, therefore rising the SNR back to around 7.5db with a slower speed around 14800.

Now surely the router should re-sync when this happens, is this a bug with the Sky Netgear 834GT firmware?

I have now set the SNR target margin to 105 points (around 6.85db) using the 3rd party admin page, I sync at 14448 with minium 7.3 db so far this evening so this should remain stable.

Also I thought 6 db minium should be stable at a given speed?

Anyone else see this, as I leave the router on 24/7 this should now be OK but if it re-synced during the day the SNR might well be too low in the evening... Surely Sky must implement something similar to BT's max stable rate? Or in theory I have to call 1st level support to get the max sync speed set at their end, I somehow doubt I want to risk this - I was already stuck on ADSL1 for 9 days waiting for them to sort that out.

BTW does everyone else see full speed downloads at this early stage for Sky Broadband, I download at 1.4 MB/sec on my current sync rate.

Comments?

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BTW does everyone else see full speed downloads at this early stage for Sky Broadband, I download at 1.4 MB/sec on my current sync rate.

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Yeah, full speed depending on my connection stats.

I'm now running that new utility. - Bounce Sky Router, which reboots the router if a couple of sites can't be pinged. It also applies a custom SNR margin of my choosing. Works a treat

1. Shame that app is Windows only.
2. The router should re-sync automatically if SNR drops or connection becomes unstable (shouldn't it?)
3. Surely Sky should set a stable rate like BT after 10 days?

At least at this lower sync rate I should be OK, I only tweaked the target SNR to get the desired sync speed for stability.

It also applies a custom SNR margin of my choosing

How did you set it up ?

I cheated, I used the one in the custom_commands_sample in the config.xml

1. Bill Gates invented the internet
2. I haven't seen one that does - hence DMT etc.
3. That BT thing always goes wrong. Naked DSL is best.

In reply to:

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1. Bill Gates invented the internet
2. I haven't seen one that does - hence DMT etc.
3. That BT thing always goes wrong. Naked DSL is best.

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1. Bill Gates, internet, please don't start this Mac user off!
2. I'm sure I read it was an issue with this router.
3. I suppose.

I wonder if this router can limit the sync speed, like it can set the target SNR - I will look into that in the coming days. Then no need to contact Sky EVER!

Yeah, setting the target SNR margin will limit the sync speed. There's no reason you couldn't do the url injection from a Mac, they support telnet scripting etc.

http://www.asininemonkey.com/netgear-dg834gt-hacking.html

I already use that to access telnet, but looks like you can only set a target SNR only not speed.

Yes but that will limit the speed, won't it?