[plug] Modem Issues

[Peter Wilsmore]

> On Tue, 26 Mar 2002, Jonathon Bates wrote:

> 
> Heya guys,
> I was at a clients residence today setting up a gateway
> with a dialup account. Now I could get the box to dial,
> get out going data going through fine (for a period of time).
> After which the connection just went completely dead. I would
> try and ping a site, and not even the SD light would flash (which
> I found strange). When I was running a ping command, it would
> originally send out roughly 20 packets and then die. We changed the 
> modem cord, and then managed to get to 50 packets before dying.
> I could ping the IP address of hte modem without a problem, so I am
> not sure if it could be the serial connection, the serial port, the
> machine itself with a screwy memory block or something. Or the modem
> itself having problems with a few of the commands (eg hangup...). I
> truly don't think it is the phone line as during the dialup it connected
> really quickly, with no retrains.
> 
> Anyone have any ideas?
> 

I have had similar issues in the parts with modems not negociating
protocol properly. Can I suggest if there is a possiblity of using
a different type of modem at either end to test you try that? 

You could always to and find out what is actually failing and why
and try and fix that rather than playing a guessing game ;P

Thanks,
  the Djinn

PS: I think I found that the problem I was having was something
to do with a timing issue and very short time outs on the modem.