I have a wireless linksys Router with four (RJ45) ports. I have several computers that get IP addresses from this wireless router e.g. 192.168.15.xxx. One main computer is connected with RJ45 (either net) connection to this router. I like to have this computer to always have the IP address of 192.168.15.101 so that I can define different ports to be used by different applications for this particular IP address. The issue is that if this computer is down for maintenance and other wireless computer are rebooted one of the wireless computer will get the 101 address and this computer when rebooted may get 102/103 or whatever next available IP address is. Due to this I have to again go in the router configuration and define the ports for the new IP address assigned to this computer. I was told by one of the techs to define the IP in TCP/IP and make it static e.g. 192.168.15.1, subnet 255.255.255.0, and start the wireless range in the router from 102 and above. I tried this, but my internet and applications some how don’t work. Making the long story short I like to have this main computer always the first IP address and the rest wireless computers to have whatever is available. Any tip would be nice. Regards

You need to go into your router's setup and make sure that address is not a part of the DHCP scope, or address pool from which is assigns IP addresses. That's if you are going to use a static IP set on the client computer. OR... If your router supports it, create a reservation for your computer to be certain IP address. This would make your computer still lease an IP from the router, but the router would always give the same IP address unless you ever change your NIC, since reservations are based on the MAC address of your NIC. In this scenario, set your computer ot still get it's IP address automagically. "Milk was a bad choice!"

Or, if your router is capable, you could exclude that one IP from the DHCP scope and assign it to the PC. Then that addy is not part of the scope and can't be accidentally given to any other device.