[clug] Internet connectivity

[Scott Ferguson]

On 01/03/12 18:29, Ivan Lazar Miljenovic wrote:
> Recently my internet is playing up: websites not finishing loading,
> IRC and IM clients continually disconnecting, etc.

I've had similar issues the last few weeks - different carrier. Using
another carrier and the same modem I've had no problems... (bit early to
blame the carrier just yet though).

> 
> I thought it might have been an ISP (MyNetFone) issue (as there was
> some unscheduled downtime recently), but their tech support guy in
> Sydney says that it all looks good on their end, and if anything my
> speeds have been *increasing* over the past few days.  The only
> suggestion he's made is that I try with another modem (which I don't
> have).
> 
> As such, can anyone suggest any pointers in trying to track down
> what's causing the problem? (kernel config, software issue, modem
> issue, etc.)  Nothing I've tried seems to work, and it doesn't help
> when I try and ask for help on IRC but it then disconnects :s
> 

Insufficient information :-)

Is this a wireless internet or cable?

dmesg?

anything interesting in /var/log/?

If wireless:-

enable debug for pppd

then:-
grep -e pppd /var/log/debug

also:-
ifconfig ppp0

what sort of modem?
does it use /dev/ttyUSB or other device?

sigmon for the relevant port?



Kind regards