VN7 - 791G: Wifi slow and unreliable when a USB drive is plugged into the USB ports on the right.

WiFi becomes quick and reliable whne the memory stick is disconnected. Always reproducible. Does not occur when the memory stick is plugged into the USB port on the left. Also has anyone seen this behavior?

Wireless network adapter Qualcom Atheros QCA61x4 with the version of the driver 12.0.0.230 dated 03-2016-21.

Thank you

Chris

Hello

The explanation is simple. I'm sure that the memory stick is a USB 3.0, a plugged in a USB 3.0 port. The problem is that all USB 3.0 devices generate a 2.4 Ghz interference, as it generates interference on the frequency working on wireless. The solution is to connect the player to another port or to spend the 5 GHz wifi if your router supports. The wifi antenna is probably very close to the port and to the USB key.

This is known for a long time, and has nothing to do with the laptop.

There is an article on the Web page of intel who described the problem more technically. You can search if you wish.

This causes a problem also with a wireless mouse, if the receiver is connected next to a USB 3.0 stick or any other device.

Tags: Acer Laptops

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