Terminations and slow internet speed over WiFi on Ubuntu 16.04 LTS. Why such a problem?

Question

linux

So the fact is that everything worked fine at first and suddenly wifi turned off by itself. After turning it off, it is impossible to simply turn it on using the wifi button, and even the list of available networks is sold. Either restarting or command line helps. And after I turn it on, it turns off again after a certain period of time. And even if I'm off. wifi it is also impossible to turn it on. Yes, I almost forgot the speed of the Internet varies a lot, mostly very weak.

Answer 1

This problem may be related to the falling asleep of the piece of iron. Try in the /etc/pm/sleep.d/ directory to create a file called "10_nm-restart" with execution rights and contents:

#!/bin/sh
case "${1}" in
  resume|thaw)
  service network-manager restart;;
esac

Here is such a simple script, after waking up from sleep, it restarts the nm service, and the problems with losing networks after waking up from sleep disappear.

Answer 2

Commands: sudo service network-manager start (stop)
Map: enp1s0f1 no wireless extensions.
wlp2s0 IEEE 802.11abg ESSID:"TP-LINK_F74D73"
Mode:Managed Frequency:2.412 GHz Access Point: F4:F2:6D:F7:4D:73
Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:off
lo no wireless extensions.