win98 cant find domain

ok i boot up and get no domain server can be found to authenticate you bla bla bla. so i restart still get it, so i remove the tcp/ip for the nic and then add them (without leaving the network pref screen) disable nic/enable nic logoff, logon and then it works. what could cause this?

I've found that TCP/IP can get corrupted quite frequently and removing/adding it refreshes the files. I'm not entirely sure why this happens, seems to happen more on computers using DHCP though.