I can't connect wirelessly with my printer since I got Uverse

I have a dell 4600 desktop, a dell inspiron 6000 laptop and a dell AIO 962. The printer works wirelessly with a dell 3300 printer adapter. The laptop doesn't, my former home network discovered the printer and printed from two rooms away. I spent all day yesterday on this and still no laptop wireless printing. ATT Uverse support is useless and I don't want to pay them to further mess up my home network. Any help will be appreciated. I have the printer drivers already installed on my laptop.