Setting Up HL-22580DW Wireless Printer With 2 PCS?

I've A brother HL-22580DW Wireless Printer, and two HP desktops (Both running Win7).

Desktop 1- via cable modem and router (Belkin),
Desktop 2- feeding off the routers broadcast,

I've gone through the documentation and a whole bunch of loops trying to figure out how to set it up. PC 1-There's a wireless setup wizard on the printer itself, that scans for SSIDs. The printer sees the router,and instructs me to push the 'WPC' button on the router, which I do. I head back over to the printer, confirm (ok)it attempts to connect, but it always says " Connection Failed ", prints out an error sheet stating that there is no wireless access point or router with "WPC" enabled.i was informed to "ad hoc" and enable the "WLAN" option on the printer, then denoting its own settings, giving it a name,( for testing purposes no password). This was a success.

PC 2- with the wireless adapter, it "sees" the printer, but when i connect to it the wireless bars are never stabilized ( bars appear, blue circle revolves) and while that occurs, I'm able to print from this computer but i'm forced to disconnect from the routers broadcast, leaving that computer netless, and still the connection never appears to be"stabilized".When messing with computer one,The printer never "sees" the Belkin router though it recognizes the SSID prior. with the second printer, I can print documents but I lose net connectivity switching over to the wireless printers broadcast, and the bars at the bottom right aren't 'stabilized'.I've tried disabling the firewall, on both computers, and within the router itself?