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On 1/22/2011 10:30 AM, Jerry Feldman wrote: > Yesterday at work, one of my coworkers wanted to make a presentation > from his company laptop (Windows XP). For some reason his IP address was > showing 192.168.x.x, not the internal company 10. address. I used my > Ubuntu netbook to make sure the CAT5E cable was ok, and I certainly got > a valid 10. address. We moved to another office because the lighting was > better, and the same thing. We even rebooted his computer. Somehow it > wanted to remain at 192.168. Our cables are plugged directly into a > switch that plugs into our firewall. After a while we finally got the > thing up and running on the corporate network. Note that I had even done > a IPCONFIG /release and IPCONFIG /renew. I've seen this before on his > previous laptop. Apparently he does something at home, but when I look > at properties it shows DHCP. > Use ipconfig /all to verify that a lease is actually getting assigned. If it is, you may have a rogue DHCP server on your hands. -Mark
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