hi! windows 7 64bit on both desktop and laptop. so, i have a wireless router with 4 lan ports. model tp-link tl-wr740n. in port 1 i connected the desktop and the laptop wirelessly. i cannot use internet on laptop via wireless(is says: connected; no internet access/no network access/ limited access), if at the same time i am using internet on desktop (browser open for example). 7 months it worked, the problem appeared a week ago. i did not change any settings. my phone says 'temporarily avoiding poor connections' when i try to connect to router. could the problem be the router?