🚀 go-pugleaf

In article <283073205wnr@nailed.demon.co.uk>,
Paul Haigh  <paul@nailed.demon.co.uk> wrote:
> 
> 
> Hi,
> 
> I am using an internal USR Sportster 28.8.  After each session connecting 
> to demon I check the Modemlog.txt & PPPLog.txt files.  I seem to be getting 
> around 100-200 serial overrun errors per 1/2 hour connected.  (ie 2hours = 
> 400-800 overruns!!!!).
> 
> This is bad.

It is indeed.
 
> I have my 'Port Settings' set to the full amounts (under 
> control->modem->prop->connection->port) and I obviously have a 16550 UART.


But is it actually being used as a 16550? If the 16550 FIFOs aren't
enabled, you'll get overruns. Other reasons would include - having a
stored setting or configuring the modem to not do hardware handshaking
or having something else runni9ng which is blocking interrupts for a
very long time - could happen with sound cards, CDrom drives, etc.
There's always the possiblity of a faulty serial port or even a bad modem.

I guess for a first step I'd go into Windows terminal or some such
after a call and get a dump of the modem configuration and post it
here - As I recall, it's the ATI6 command. I'd also check the
Sportster manual to be sure that you aren't disabling RTS/CTS
handshaking.
 
Then try connecting with every other possible
application shut down. If you still get similar numbers of interrupts, 
try setting the baud rate lower, until you get a connection with no
overruns. Trying another comm port if you have one free or trying an
external modem or your modem in another machine are the final steps.