You do not mention what you are using for an access point, so I’ll just tell you how it could be set up for you.
Since you are using static IP addresses on your network, you need to assign an unused IP address in the 192.168.1.xxx range to the access point. Then, assuming your wired router is using 192.168.1.1 as its IP, that would be the gateway point. This is how you have it set on your wired computers. Also use the same address for DNS as you have for your wired computers.
Then set up the DHCP server. You may use a different subnat for this, or just chose an unused range in your current 192.168.1.xxx network. When you fire up the laptop with DHCP enabled, you should gain the IP fromthe access point and be ready to go.If you are still ahving a problem bring up a DOS prompt and run IPCONFIG /ALL to see what your laptop has picked up for an IP and other settings. If they do not match your settings, check to see where the laptop may be gaining the information from. There may be another wireless network that is giving it an IP, but is not really strong enough to carry much of a signal. Check your wireless settings using the utility provided with the computer to determine the networks available, and select your home access point as the prefeerred access.