My laptop seems to be the only one that cannot access the wireless in this house. Suggestions?

I am staying at my aunt/uncle’s for the weekend. They have wireless internet (cable) and my laptop (Acer) is the only one unable to detect it/access it. Other laptops such as Dell and Sony have worked fine. I used to be able to access this internet and then one time I was visiting, it just stopped! I have tried removing all the networks from my computer’s wireless list, I have tried rebooting numerous times but no luck! If you have ANY advice at all, I would love to hear it! I need my nightly fluthering time :(. I know I did not give much information to go off of but I can’t think of what else to say. I am not computer illiterate (so yes my wireless switch is set to ON on the computer).