> You first need to double-check that /dev/ttyS0 is actually > the correct serial COM port you have the modem connected to. > Please look under System->Hardware and then click the 16550A-compatible > COM port in the LH pane. > Then in the RH pane click on 'Advanced', and find the serial.device string > or linux.device_file. > This will be something like: > linux.device_file strlist /dev/ttySx where x == 0|1|2|3 serial.device > strlist /dev/ttySx where x == 0|1|2|3 > Please can you share with us what the reason was for the > problem, so others with similar problems can be enlighted, > including myself? Well it's a bit ennoying. I've done all the given check list and got nearly no answer for a solution. So I decided to open the box to see that the serial device connector was partly unplug from the mother board; so it was the source of my problem. I put it back in palce and it was done. --- Michel Donais