Problem with WIFI network on Ubuntu 14.04 on Lenovo laptop?

Question

WiFi

When you turn on the laptop, it automatically connects to WIFI, the Internet works for a couple of minutes and disappears, although there is a WIFI connection, on Windows everything works fine on the phone as well, if you restart the laptop it also works for a couple of minutes and disappears .. what to do ???

Answer 1

If you have a Realtek wi-fi card model, then the following will help seyferseed.ru/ru/linux/ubuntu-realtek-rtl8723ae-me... It helped me.

Answer 2

The moment the network goes down, say ifconfig in the console and look at the mtu on the wlanX interface.
If it is less than 1428, then you need to update network-manager to 1.0.6+

Answer 3

I had the same problem, in the settings of the router, in the channels, it was AUTO, through the Wi-Fi the analyzer saw that my router was hanging on channel 6, the most clogged one, switched the handles to 3 and everything worked.