On Sat, 18 Sep 1999, Ray Olszewski wrote:
> Without seeing the exact errors, I can't say if you have "other problems".
> It is certainly possible that your phone line, or the modem at the other
> end, isn't up to the higher speed ... but then, if the serial conection to
> the new modem is 38400, the modem should be dropping back to 33.3 in any case.
There are no actual messages, but ifconfig reports lots of RX errors. The
phone line shoukd be OK, since it worked correctly with the internal 33K6
modem. The modem at the other end is my ISP, which should work.
>
> The 16450 UART is definitely a problem. Based on my experience, it is
> unreliable at speeds over 19200. Do upgrade to a 16550A or better; at least
> here in the US, the boards for this upgrade are pretty cheap (US$30 last
> time I checked).
Since the problem appears to be either the mopdem or the serial port, and
the serial port is unreliable anyway, I'll try to find a 16550A and see
what that does.
Frank
>
> At 01:46 PM 9/18/99 +0200, Gevaerts Frank wrote:
> >I have a working ppp link, but it gives lots of errors (now about 300
> >errors for 5000 packets). This is since I bought a new modem. The old one
> >was an internal 33600, the new one is an external 56K modem. Now I know
> >that it isn't a good idea to hang a 56k modem off a 38400 bps 16450 serial
> >port, so this is probably the cause.
> >The result is a really unreliable link, with very variable speeds. Will
> >upgrading the serial port solve the problem or do I have other problems ?
> ------------------------------------"Never tell me the odds!"---
> Ray Olszewski -- Han Solo
> Palo Alto, CA [EMAIL PROTECTED]
> ----------------------------------------------------------------
>
>
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