You can easily rename your computer by editing the /etc/ hostname file.
In Terminal, type sudo nano /etc/hostname, press Enter, type your password and press Enter again. Delete the old name and type the new one. Press Ctrl+O to save and then Ctrl+X to close the editor. The new name will enter into effect after a reboot.
I guess you want elementary to use localtime instead of UTC to avoid time differences when dualbooting elementary and Windows.
Just execute on terminal: timedatectl set-local-rtc 1 --adjust-system-clock
You can check if that's working with the command timedatectl (may need to reboot).
Try installing the openconnect packages:
sudo apt install network-manager-openconnect network-manager-openconnect-gnome
sudo systemctl restart network-manager.service
The Choose a VPN Connection Type dropdown will now contain two new entries:
Cisco AnyConnect Compatible VPN (openconnect)
Juniper Network Connect (openconnect)
A reboot might ...
It is worth trying the solution described here. The video also shows a way of measuring the speed from Terminal, using speedtest. So, install and run speedtest to see the down/up speed before applying the solution:
sudo apt install speedtest-cli && speedtest
Now, in Terminal paste the following commands, one after the other:
echo "options iwlwifi ...
STEP 1 : Create a new file in the launcher
$ sudo touch /usr/share/applications/appname.desktop
STEP 2 : Edit this file
Comment=Comment if you want
Categories=newcategorie1,newcategorie2 <===== create your categories here