[Plextalk] wi-fi problem with Plextalk Pocket

Has anyone had problems with connecting to Belkin routers? I was using a d-link router and had no problems. When my brother upgraded our router to a Belkin router, whatever I try, I can't get my Pocket to connect to it? Our neighbor has a different model of a Belkin router here again, whatever I try, I can't connect to it.