I have recently updated the os from version 16.04 to 18.04 LTS. But I can not connect the pc to mobile Hotspot. The wifi is turned on but in the visible networks section no available network is shown. How can I resolve this, please help.
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Using nmcli utility(recommended):
We will use the command-line version of Network Manager, nmcli.
Scan for available WiFi networks:
nmcli d wifi list
where d stands for devices.
Connect to your access point, for example, my_wifi:
nmcli d wifi connect my_wifi password <password>
where <password> is the password for the connection.
Using ifconfig:
Check the wireless network device of your card. It usually starts with w like wlan0, but if you're unsure you can just run iwconfig. It will report "no wireless extensions" for non-wireless devices and will display some data for any wireless devices.
Now bring up your wireless card as a root user:
sudo ifconfig wlan0 up
Enter your access point name and password using iwconfig:
iwconfig wlan0 essid <my_wifi> key s:<password>
where is the name of your hotspot name and is its password.
This method works for WEP encrypted connections. For WPA/WPA2 encryptions see this.
sks-15
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First let's test, that your connection is working by doing the following from the terminal
ping -c4 8.8.8.8
If that succeeded, you're pinging Google's nameserver's and your connection is fine. You're probably having a misconfigured resolv.conf file which includes the nameserver ip address (nameservers will translate names ie. google.com to ip-addresses).
If you're able to ping, we need to fix your misconfigured resolv.conf file
sudo rm -f /etc/resolv.conf
<p>sudo ln -s /run/systemd/resolve/resolv.conf /etc/resolv.conf</p>
Restart networking or reboot
sudo service networking restart
Betro
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