I get limited conectivity if i dont disable 1 adapter when duplicating IP address for port forwarding

[deyannn]

Hi
I use port forwarding so i needed a way to set the same IP address for both my LAN nic and my wi-fi so i cloned my Intel Wireless Link 4965AGN MAC on my Marvel Yukon 88E8040 . I use only one of them at a time anyways.
The IP address is not dynamic - my router looks up the mac address and gives the preassigned IP address. I configured the LAN card to work with the same static IP address.
Now after a restart i can connect to my router with either the LAN or the wi-fi card, but when i unplug the cable (if I used the LAN first) so that i can turn my wi-fi on or if i turn my wi-fi off so that i can plug my LAN cable in I get limited connectivity.

I managed to find a way to fix it. Now I have to have one of the adapters disabled all the time. If i want to use my wifi i disable the LAN adapter and vise versa. When i use win XP I don't have such a problem - I can just unplug the LAN cable and turn the wifi on so It must be a vista problem. I'm using Vista Business 32bit and Its updated. My network adapters have updated drivers (from the manufacturer's websites).

I want to find a way to prevent Vista for checking if the IP addresses assigned to the two adapters are duplicated/identical if thats the reason for my problem or maybe find a better way to solve it. It's kind of annoying to have to disable and enable adapters all the time.

Thanks in addvance for all the help and please excuse my bad english and bad technical expressions. I can't really speak English properly and also I'm not a techie.