[wdvltalk-social] broadband woes

David Precious davidp at preshweb.co.uk
Thu May 1 09:20:17 BST 2008

joseph harris wrote:
> This is the diagnostics test
>       Testing ADSL line for sync PASS

So the modem is in 'sync' with the line card at the exchange - this 
means there's a usable ADSL signal present on the line.

>       Testing Ethernet connection to ATM PASS
>       ATM Connection Test
>       Testing ATM OAM segment ping FAIL
>       Testing ATM OAM end to end ping FAIL

OAM is an Operation, Administration and Maintenance packet to test the 
ATM (Asynchronous Transfer Mode - the transmission system used over the 
ADSL link).  The fact it fails isn't necessarily a problem; it could 
just be that the ISP's kit doesn't support / blocks ATM OAM requests.

>       ISP Connection Test
>       Testing PPPoE server connectivity FAIL

Since this failed, the rest has to fail.

What's your ISP?  Do they definately use PPoE, or could it be PPPoA?

Do you have the correct VPI + VCI values?  (These are the path + circuit 
  identifiers; here in the UK they're 0, 38 - but they may vary where 
you are.


Dave P

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