If the access to the internet is normal except playing video games, the problem may lies on the game but not the router. What the video game do you play?

Actually it's all right for you to setup the C7 with DHCP enable to if you want to realize that the clients upstair don't need to change their IP address when shift to another AP. But in this way you...

1. Since the wireless environment in your case is complicate, and the quality of communication depends on a lot such as interference, it's hard to comment that the new application can get a higher...

1. Since the wireless environment in your case is complicate, and the quality of communication depends on a lot such as interference, it's hard to comment that the new application can get a higher...

Would you please tell me some detailed information: 1. Is the DHCP in your 4300 able or disable? 2. The LAN ip address of router, PC, laptop and the smart phones? 3. Is there any device between the...

Maybe you can have a try of this although I don't know if it works : Navigate to the web management page -> Network -> WAN -> MTU Size, input a number less than 1500 such as 1480. If this changes...