My problem (pppd disconnection) is solved; my linux (slackware 3.6) auto-probed the IRQ on 'irq 4', when it actually was on 'irq 10'; I never suspected THAT because it still dialed and logged in... (but with a lot of delay). It appears that my modem (Wisecom 33.6 ws-3314JS3: quite standard) and my bios played a little plug-and-play - game. Obviously, my modem liked irq 10 more than irq 4, and my bios still expected it at irq 4. Thanks to everybody who helped me! If you need some help... mm... well... I can try... :) (If anyone cares:) I checked the free irq's in my bios and probed them with setserial by doing an 'echo "atdt99999" > /dev/ttyS2' after changing irq's, irq 10 reacted immediately (instead of 40 secs with the wrong irq). I tested it with irq 10 and it worked. Marc - To unsubscribe from this list: send the line "unsubscribe linux-net" in the body of a message to [EMAIL PROTECTED]