Nodogsplash Captive Portal in WiFi Pineapple Mark IV Posted May 30, 2013 I'm getting the "Invalid request path ''" bit even on a simple page load. I'll have to dig back into it when I have more time this week. As for not being able to access the pineapple interface, that's a bit easier to explain - you need to review the firewall controls in your nodogsplash.conf. It's got separate classes of controls for unauthenticated users, authenticated users, and access to the pineapple itself. Make sure you have a listing for access to the administrative interface port (tcp/1471 or whatever you've set it to). If you want to be a bit more granular, you can also whitelist the MAC of a single device.