What the title says. I bought a TP-Link WDR4300 and installed it, and everything works perfectly on every device except for my laptop (Windows 8.1 Lenovo G480, running Windows Defender as AV). When connecting wirelessly, I get access to the router, but it shows "limited", and it doesn't even let me get into the setup page (192.168.0.1) and when I ping it, every packet is lost. Ethernet, meanwhile, works perfectly. I'd appreciate any suggestions on how to fix it. I'd like to attach the ipconfig outputs but my command prompt is in spanish and some of the characters are missing in the .txt file, too. I don't know how to get the file in english. @jobeard I saw one thread you solved in which you said to mention you so you could help. I'd really appreciate it. Thanks beforehand for any and all suggestions.