Problem with an Internal IP number and connecting to the Internet

Question

I am having trouble connecting to the net. The IP number in my TCP/IP settings displays an 'internal' IP number begining with 169., instead of the correct one (beginning with 82.).
I can temporarily solve this problem by running my ISP's Set Up Disc, however as it reverts back to the internal IP number on closing down, I have to run the Set Up Disc each time I start over.
Anyone with any ideas would be greatly appreciated.
Cheers.
ps I am using an Ethernet Modem.
iMac 233   Mac OS 9.1.x  
iMac 233   Mac OS 9.1.x  

Answer 1

I came across some info. titled 'Reinstalling Internet Access software' in a text file titled 'About Internet Access' in the Internet Folder. It says:
"If you are experiencing frequent problems using any of the Internet Access programs, your Internet Access files may be damaged and need replacing. Before performing a clean installation of the Mac OS to replace the files you must throw away the Internet Access files in the Internet folder, the Internet Access extension (in the Extensions folder), and the Internet Preferences and Internet Setup Prefs files (in the Preferences folder)
Note: When you throw away the Internet Preferences file you will lose your Internet account information. You can reenter it in the Internet control panel."
I will follow that advice and reinstall from my ISPs' Broadband Set Up CDs.