Ok so i have a wireless dual band n adapter and i dont know what the problem is with lagging all of a sudden. I use to not lag at all it would be full green bar all the time but now it goes full green bar than straight to red just after like 2 min. When it goes straight to red i check every body elses connection and their still full green but me. And after the two minutes or so it will go back to full green. What i dont understand is that my dad works for hp and hes aloud to work from home so he takes some of the internet and when i lag i go and ask him if the internet just dropped on him too and he says that he has perfect connection, see i dont understand that. My internet used to be just fine even when there were like 4 people on it now it just droppes from full green to red. So i want to know whats wrong and how to fix that problem?