Ira, When you say it does not work. Do you mean that you cannot get the ISP to recognize the Router connected to the Cable Modem? If this is true then you have to change the Routers MAC address to match the address of the NIC in your computer. This is the address that your ISP recognizes. You can find the MAC address of your NIC by running winipcfg. Look at "more information" and then look at the NDIS driver "adapter address". This is the address that the ISP has set up for your computer. Follow the instruction booklet for changing the MAC address of the Linksys Cable/DSL Router and change it to this address. After this is done the ISP will now think that it is seeing the NIC in your computer. By the way if you do not change any of the other Router setup then your Router will respond to any probes from the Internet as being in Stealth Mode. I assume that Stealth Mode is a good firewall. It works for me. Marv Trott You wrote: Date: Fri, 17 Aug 2001 10:29:02 EDT From: Ira Wallin <[log in to unmask]> Subject: cable modem router I have a cable modem going just fine. I purchased a Linksys 4-port Etherfast Cable/DSL router today in order to run a couple of PCs off the one cable modem. So far, it does not work. I was wondering..there is a footnote in one of the instructions to delete any firewall software, like Zone Alarm (which is what I run). Is this safe for me to do? Could this be the problem? Thanks, Ira Wallin PCSOFT's List Owner's: Bob Wright<[log in to unmask]> Drew Dunn<[log in to unmask]>