>
> Hello!
> I have a ppp link over 115200 bps serial. Sometimes it just hangs off and
> is unable to establish the link. Everything is normal after reboot. I've
> observed that pppd receives data from the serial link, but modem doesn't
> receive it from the computer. It happens rarely with fullduplex, and
> quite often with halfduplex modem. Also, it happens very, very often while
> experimenting with ALTQ on ppp interface - sometimes almost immediately,
> especially with halfduplex, and sometimes within few hours.
> Is there any solution for this strange behavior?
> Thanks!
does it work right without ALTQ?

it looks like modem problems for me