As viafax999 said, you need to make sure devices set to a static IP have the same subset as does your router. It's possible to reconfigure the Actiontec to 192.168.0.1, but if you didn't do that manually, the default is 192.168.1.1.
I also have several devices configured with static IP's. In the Actiontec's settings at: My Network > Network Connections > Full Status > Network (Home/Office) > Start IP Address set to 192.168.1.100 and End IP Address as the default, 192.168.1.254.
Then when I assign a device a static IP I use the range between 192.168.1.2 and 192.168.1.99. That way a static assigned IP doesn't conflict with one the router's DHCP server is trying to assign.
With this setup I have no problem with the static devices and no problem getting IPs assigned to wifi devices...iPhone, iPad, etc. etc. Dynamic IP's are set the the DHCP server to between 192.168.1.100 and 192.168.1.254.