I have encountered something that I have never seen before. I am setting up a friend's new computer with PC Anywhere for remote access. It is a Dell Inspiron 531 that was purchased with Vista. After some horrible months trying to get s/w to run on it, we decided to take off Vista and install XP. Everything is working perfectly now, except the PC Anywhere.
While troubleshooting, I have found that this computer does not reflect the router's IP address when we go to https://www.whatismyip.com/. For instance, the router's IP is 188.8.131.52, but https://www.whatismyip.com/ is 184.108.40.206. Then, when you refresh the screen it changes 220.127.116.11, then refresh and change again!
He has 2 other computers on the network and they both show the router IP when you type in https://www.whatismyip.com/.
Why is this Dell computer not reflecting the correct ip and looping or changing so quickly?
I hope you can help...Dell, Dish network, and several other computer wizards have no idea.
The first thing to do is take the router out of the equation and plug the troublesome PC directly into the ISP provided equipment.
Does the malfunction still happen?
If yes, I'd check the CAT5 cable, but most likely it'll be a bad NIC.
If the problem doesn't exist when the troubled computer is plugged in directly to the ISP, then it may be the router. Plug the router back in and ONLY put the one PC back on the network. Does the problem still happen? If yes, try a different port on the router and test again. If it still happens, take the router back to factory defaults. Does it still happen? Hopefully by now it would be fixed. If it appears to be fixed, plug the other computers in one at a time to see if too many computers on the network are causing the problem.
Let me know if any of this helped fix it. I've never seen this problem either and am curious as to what the corrective solution is going to be.