My cable modem is connected to eth0 using dhcp. The internet stops responding every day. I tried ifconfig eth0 down, ifconfig eth0 up and dhcpc -d -t 10 eth0 that doesnt help ;[. Even rebooting linux wont work, but when i login to windows and back to linux it starts working again for a day. Does anyone know what the problem might be? I am using slackware 10. have 2 3com network cards setup "lsmod 3c59x 25648 2".

It sounds to me like you lose connectivity when you lease is being renewed.
check out your resolv.conf file (/etc/resolv.conf) while it is working and when it stops working try do a "more" on the file and get the ip address. reboot your box and see if the address changes. it could be a permissions issue on the resolv.conf file (maybe). also in the /etc/dhcpd folder ther is generally a .old and a .exe file try deleting the .old file and running /etc/rc.d/rc.inet1. another thing to check would be the gateway setting in the /etc/rc.d/rc.inet1.conf file....

I have checked before namserver addresses and ip address are the same.
ls -la resolv.conf -rw-r--r-- 1 root root 74 2004-04-30 07:24 resolv.conf
"also in the /etc/dhcpd folder ther is generally a .old and a .exe file try deleting the .old file and running /etc/rc.d/rc.inet1" i have tried that before doesnt help ;[

# Default gateway IP address:
GATEWAY=""

dhcp generally doesn't assign a gateway address. you should put that in manually. but that is probably not causing the problem

I get the gateway from the dhcp server. I tried to dhcpcd -k now and its says the dhdcpd is not running, but the internet is working fine. Isnt the daemon supposed to be running all the time?

it is supposed to. since you ran dhcpcd -k try running dhcpcd does that give you an error?

I did this dhcpcd -l 15180 -d -t 10 eth0 and its all working fine now ;] Thanks for help subekk0.