Had issues with connecting HP wireless printer to the network.

Had issues with the ATT Uverse network going down. After my husband spent hours on the phone with their tech support my wireless network was a mess. They changed my security settings and everything else. I got my 5 other PCs all set back up (they only worked on one of my pcs but I had to go back and set up all the other ones again). I can not get any of my PCs to recognize the wireless printer which was working fine until they started changing things around.
They also change the router to WEP and that is not as safe as WAP. But I left it there for right now. My husband is not a computer person and he just happened to be the one at home that day having an issue.