Trouble With Wireless Printing

[ldan92]

I'm having trouble connecting and printing wirelessly to my Brother HL 2270-DW. I have the latest version of Lion, the latest MacBook Pro, and the latest Airport Express and Airport Software. I suspect that my problem stems from the latter. I am using WPA-2 with mac address filtering. I already allowed the printer's mac address to access my network, so that shouldn't be the problem. When I try to print something, it says that the printer is "offline". Could anyone help me with this problem?

 

[Texran]

Solved mine by removing 5 Ghz access point from the iMac. I eventually turned it off completly from the TC.
I'm thinking that my wireless printer is unable to negotiate with my iMac if it's using 5 GHz to communicate.

 

[danpass]

Whenever I do something with the router then end up with a printer issue I go into the printer menu and reconnect to the router by typing in the password.

Even though the router shows that it is connected