The other day I was forced by the aftermath of a failed software installation to reinstall Windows 7on my iMac. All went well except that I am unable to use the internet on that box now because for whatever reason the two devices are not communicating properly.
I have a cable connection and my ISP does not use DHCP so the box is staticlly configured and I have verified with my ISP that the current configuration is correct.
- The ARP entry mapped to the default gateway IP address is ff-ff-ff-ff-ff which I don't think is the MAC address of any interface on my box, or the modem
- Pings fail with a mix of timeouts and "Destination host unreachable" replys from my boxes staticly assigned public IP
- Windows networking reports "No network access" and Network Diagostics can offer no assistance.
My ISP believe this to be a problem with the NIC on the Mac, however I disagree because when the Mac is connected to another computer, ping and name resolution is successful between both hosts.
I did try creating a static ARP mapping between the MAC that my working laptop associates with the default gateway IP, this did not help
I'm officially stumped so any suggestions are welcome.