I had an issue on my Lenovo Yoga 730: the wireless connection disconnected every minute or so. In the Event Viewer I found many of these entries:

Failure Reason:The driver disconnected while associating.

That has been resolved by updating the driver as mentioned on this page: Legion Y530 i7 Wifi Drops 20 times every day Realtek 8822BE.

But the wireless connection was still disconnected.

I discovered that the wireless connection became stable after removing the USB harddrive. As soon as I connected the USB drive again the wireless connection became unstable again.

USB SettingsThe solution can be found on all USB “randomly” disconnect and reconnect. The solution was to change the USB settings in the power options.

If the connection is still dropped then change the USB drive from one USB port to another USB port.