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21CN and 2820 - no connections
- nick101
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07 May 2010 18:07 #1
by nick101
21CN and 2820 - no connections was created by nick101
Any help appreciated.
My brand new 2820 will *not* maintain an ADSL2+ connection, whether 992.5, 992.3 or multimode (which choose 992.5). It will connect OK via G.DMT. When I say won't maintain - it'll establish the ADSL connection, get a network connection to the ISP (Zen) and then immediately reset. It'll loop like that indefinitely.
My older 2800, which I replaced because I gather it's not happy with ADSL2+, would always establish a connection in any mode, albeit at a slow sync rate.
On the 2820, if I connect via G.DMT, I get SNR margin of 20 and attenuation of 55. If I connect via 992.5 or 992.3, I get 0 and 64 respectively (which might, of course, explain why the connection drops immediately)
On the 2800, I got 16-24 and 52-55, whatever the connection mode.
The 2820 has the latest UK firmware.
Any ideas?
TIA
My brand new 2820 will *not* maintain an ADSL2+ connection, whether 992.5, 992.3 or multimode (which choose 992.5). It will connect OK via G.DMT. When I say won't maintain - it'll establish the ADSL connection, get a network connection to the ISP (Zen) and then immediately reset. It'll loop like that indefinitely.
My older 2800, which I replaced because I gather it's not happy with ADSL2+, would always establish a connection in any mode, albeit at a slow sync rate.
On the 2820, if I connect via G.DMT, I get SNR margin of 20 and attenuation of 55. If I connect via 992.5 or 992.3, I get 0 and 64 respectively (which might, of course, explain why the connection drops immediately)
On the 2800, I got 16-24 and 52-55, whatever the connection mode.
The 2820 has the latest UK firmware.
Any ideas?
TIA
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- voodle
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09 May 2010 01:59 #2
by voodle
Replied by voodle on topic 21CN and 2820 - no connections
try the 211801 modem code from this page?
http://draytek.com/user/SupportDownloadsDetail.php?action=Load&MID=12&ID=305
An SNR of 0 is just odd however that modem code should help, otherwise maybe contact Draytek support as maybe there's some issue with the 2820.
An SNR of 0 is just odd however that modem code should help, otherwise maybe contact Draytek support as maybe there's some issue with the 2820.
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- nick101
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09 May 2010 15:14 #3
by nick101
Many thanks - now the 2820 will make a connection over G.992.5. Margin is now 7, attenuation 63, so it looks as if I'm not going to get any more speed. Bah!
Thanks again.
Nick
Replied by nick101 on topic 21CN and 2820 - no connections
try the 211801 modem code from this page?Voodle wrote:
http://draytek.com/user/SupportDownloadsDetail.php?action=Load&MID=12&ID=305
An SNR of 0 is just odd however that modem code should help, otherwise maybe contact Draytek support as maybe there's some issue with the 2820.
Many thanks - now the 2820 will make a connection over G.992.5. Margin is now 7, attenuation 63, so it looks as if I'm not going to get any more speed. Bah!
Thanks again.
Nick
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