Wireless Adapter Reduced Speeds

[StephenM33]

Laptop - Acer Aspire V5-552G-X414
Router - Asus RT-N56U
Modem - Arris DG860
Wifi Adapter - Atheros AR5BWB222

ISP - Time Warner Cable, 20/2 Mbps
Devices Connected - 2 Iphones, 1 Kindle Fire, 1 PS4, 1 Desktop, 1 Laptop
No Error Messages

Problem: Laptop won't connect at full speed UNLESS I uninstall driver and reinstall. Then it will connect at 20Mbps until I close the lid or restart the computer (I think, not sure on when it slows back down). It slows down to what looks to be 3-4Mbps every single time. It shows no error message and no reason as to why it slows down that I can tell. Device manager shows no problems. Desktop is also ran on wireless through a different adapter and never loses speed, so I'm fairly certain its an adapter or windows problem with the laptop. I've tried original driver and updated to most recent driver and still does this. I've turned off automatic update of driver in Win8.1 also.

Any help would be appreciated.

Thanks!

 

[chev65]

There is a long list of firmware updates that relate specifically to Windows 8 for your Asus RT-N56U router. I would suggest you update the firmware.

ASUSTeK Computer Inc. -Support- Drivers and Download RT-N56U

It also doesn't help when the modem is a gateway or a modem/router but the only requirement there would be to turn off DHCP on the N56U, although I don't see how this could create the problem you are describing.

 

[broe23]

You are Double-Natting with that other router behind the Gateway. That is half of your problem. The other half is that you need a true Wireless A/P or set the Asus router up with DHCP disabled, and connect the Ethernet cable from the Gateway to the Asus Router from LAN port to LAN port.