I have purchased a new Dell XPS L502x laptop which has Windows 7 64 bit Home which has this Wi-Fi Option: Intel ® Centrino ® Advanced-N 6230 (2x2 agn + Bluetooth)
And I have 4 Mbps Internet connection with Dlink DIR-655 Wireless router.
When I use internet on my laptop by wired LAN it works very good very fast. But when I use internet on Wi-fi it works very slow and most of the time doesn't work properly.
Any solution for this?
This is screenshot of Wireless Router setting
Of device Manager
Network setting folder
Please tell me if you need any information to solve this issue.