Change snr limit

ninja69

ninja69

ninja69

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30 Sep 2003
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127
Location
horsham, west sussex
I have max adsl 4mb from bt, and a belkin f5d7632uk4a wireless adsl router. My downstream snr is about 5-6db. I seem to be getting a lot of disconnections. Does the router automatically disconnect if the snr goes below a set figure eg below 5db? If it does can i adust the minimum snr so it does not disconnect.
Please correct me if im wrong but the higher the snr the faster and more reliable the adsl line is?
Just ordered a filtered master socket and a decent rj11 cable to hopefully improve my connection.
I have disconnected all other extensions from master socket so internal wiring doesnot interfere.
The line is connected to the back of the master socket on A and B. If i plug in the phone to the test socket i get a dial tone. If i plug the phone into the the removeable front section of the master socket i dont get a dial tone. Should the main master socket terminals a and b be connected to the removeable front socket or should it work using the telephone jack plug into the test socket?
 
for SNR its like bandwidth if its a high number then you've still got bandwidth available to be used for increasing the line speed which makes downloading faster.
However if SNR gets too low it does end up you get the odd disconnection here and there throughout the day.
i believe if you dont play online games etc you can actually get interleaving turned on so that theres less disconnections throughout the day, but doing this means you sacrifice abit of your download speed.
 
sja360 said:
but doing this means you sacrifice abit of your download speed.
Click to expand...
I always thought that you only sacrifice a little download speed if you usually sync at 7.616 Mb or higher as that is the limit with interleaving on?

If you normally sync at a lower speed than 7.616 (like I do) then having interleaving enabled may actually mean that you have a (slightly) faster speed because you have a more stable connection and with less dropouts you are more likely to gain sync speed if you have enough SN/R?
 
when i follow the instructions i do not get the command prompt as is says. Ive opened port 23 in and out and still no command prompt when i type telenet 198etc and run command
 
sja360 said:
for SNR its like bandwidth if its a high number then you've still got bandwidth available to be used for increasing the line speed which makes downloading faster.
Click to expand...

Incorrect. SNR is not "like bandwidth".

However if SNR gets too low it does end up you get the odd disconnection here and there throughout the day.
Click to expand...

True.

i believe if you dont play online games etc you can actually get interleaving turned on so that theres less disconnections throughout the day, but doing this means you sacrifice abit of your download speed.
Click to expand...

Half true. Interleaving will give you better error tolerance, at the expense of increased latency.
If you've got a sync rate >7616kbps, you'll see a reduced sync rate, but unless I'm missing something, there's no technical reason for it.
You don't see an increased SNR margin, so if you're at a lower sync rate you won't see an increased rate - just what you've got should be more stable.

The instuctions for turning on SRA
Click to expand...

Useless if you're not on an ADSL2+ service (which IPStream Max isn't), and your provider supports it (and AFAIK most don't). SNR tweak might be useful though.
 
ninja69 said:
when i follow the instructions i do not get the command prompt as is says. Ive opened port 23 in and out and still no command prompt when i type telenet 198etc and run command
Click to expand...

You should not need to open any ports if done from inside your LAN.

The IP you need is the one you normaly use to logon to your router.

Normal default unless you have changed it is 192.168.0.1

telnet not telenet

Also I read somewhere that the telnet server on the latest belkins has been disabled. Maybe this is the case with yours.

tolien said:
Useless if you're not on an ADSL2+ service (which IPStream Max isn't), and your provider supports it (and AFAIK most don't).
Click to expand...

Yes you speak the truth here Sir. :)
 
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