I have a Conexant SoftK 56 Modem on Windows XP with Athlon XP 2000+. I keep getting disconnected from my ISP every 5-10 minutes. I called tech support and was given some initialization strings to try, but they didn't help. I know it's not a line noise problem because my other machine doesn't have disconnection problems.
If I use diagnostics, it returns the ATI3:
I think that is the most up-to-date driver. I even tried those "generic" drivers from Conexant's website, but to no avail.