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BT Business broadband - help please

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27 Apr 2010 12:10 #61794 by htcom
I'm trying to conect a new Vigor2820 to our BT Business broadband service.
I can't get it to connect at the BT suggested modulation settings (G.DMT), but I can get it to connect at ADSL2+. However I get lots of RX CRC errs.

Has anyone got the 2820 to work with BT Business and if so could you please let me know the settings ?

Thank you

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27 Apr 2010 12:32 #61796 by daveblack
Replied by daveblack on topic Ditto
If you read a couple of posts back you will see a couple of us with this problem, very annoying I have two drayteks on different lines with this issue.

Dave

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27 Apr 2010 16:27 #61800 by htcom
Replied by htcom on topic BT Business broadband - help please
Thanks for the reply Dave.

I've looked at the other posts, grim reading.

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27 Apr 2010 21:29 #61803 by eric.jansen
Replied by eric.jansen on topic BT Business broadband - help please
Installed 2820Vn yesterday after regrade to BT Business Option 3 (single fixed IP address).
Very solid sofar, these are the settings used:

Copy and paste from Web Interface:

ADSL2+(G.992.5) SHOWTIME 888000 18923000 6 33

Model Name : Vigor2820Vn
Firmware Version : 3.3.3_232201
Build Date/Time : Oct 23 2009 15:23:15
ADSL Firmware Version : 232201_A Hardware: Annex A

DSL Modem Settings
Multi-PVC Channel 1
VPI 0
VCI 38
Encapsulating Type VC MUX
Protocol PPPoA
Modulation Multimode
WAN Connection Detection Mode ARP
IP Address From ISP Fixed IP Yes No (Dynamic IP)

adsl status

ATU-R Info (hw: annex A, f/w: annex A)

Running Mode : ADSL2+(G.992.5) State : SHOWTIM
DS Actual Rate : 18923000 bps US Actual Rate : 888000 bps
DS Attainable Rate : 18748000 bps US Attainable Rate : 888000 bps
DS Path Mode : Interleave US Path Mode : Interleave
DS Interleave Depth : 96 US Interleave Depth : 8
NE Current Attenuation : 33 dB Cur SNR Margin : 5 dB
DS actual PSD : 20. 2 dB US actual PSD : 11. 6 dB
ADSL Firmware Version : 232201_A

ATU-C Info

Far Current Attenuation : 16 dB Far SNR Margin : 11 dB
CO ITU Version[0] : 00004946 CO ITU Version[1] : 0000544e
DSLAM CHIPSET VENDOR : < IFTN >

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28 Apr 2010 17:18 #61815 by htcom
Replied by htcom on topic BT Business broadband - help please
Thanks Eric, thats really handy for comparison.

Out of interest, are you getting any TX or RX CRC errors ?

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