I was having issues like both Wifi and Ehthernet connection is getting disconnected suddenly. So, I searched about the problem in google and found this post about fixing the issues i'm having I tried the best to follow the post and comments to fix my issue but it didn't fixed my issue then at a point I came to a comment saying that uninstalling GNOME's Network Manager and installing WICD network manager can solve the issue and also he shared the command to install the WICD network manager but these command didn't worked just cause the commands were usable in Ubuntu 18.04 or older than that.
I came to realize reading this post that wicd was removed from the repositories because of Python 2 deprecation. After that I followed the post which is this one and tried to install the WICD by downloading the packages and installing manually there was these commands
mkdir -p ~/Downloads/wicd
cd ~/Downloads/wicd
wget http://old-releases.ubuntu.com/ubuntu/pool/universe/p/pygtk/python-gtk2_2.24.0-6_amd64.deb
wget http://old-releases.ubuntu.com/ubuntu/pool/universe/p/pygtk/python-glade2_2.24.0-6_amd64.deb
wget http://old-releases.ubuntu.com/ubuntu/pool/universe/w/wicd/python-wicd_1.7.4+tb2-6_all.deb
wget http://old-releases.ubuntu.com/ubuntu/pool/universe/w/wicd/wicd-daemon_1.7.4+tb2-6_all.deb
wget http://old-releases.ubuntu.com/ubuntu/pool/universe/w/wicd/wicd-gtk_1.7.4+tb2-6_all.deb
sudo apt-get install ./*.deb
sudo apt-get install ./*.deb # second time for correct configuration
to install WICD manually I ran all command but at last when I ran the command sudo apt-get install ./*.deb the terminal looks like this
lmao@lol:~/Downloads/wicd$ sudo apt-get install ./*.deb
Reading package lists... Done
Building dependency tree
Reading state information... Done
Note, selecting 'python-glade2' instead of './python-glade2_2.24.0-6_amd64.deb'
Note, selecting 'python-gtk2' instead of './python-gtk2_2.24.0-6_amd64.deb'
Note, selecting 'python-wicd' instead of './python-wicd_1.7.4+tb2-6_all.deb'
Note, selecting 'wicd-daemon' instead of './wicd-daemon_1.7.4+tb2-6_all.deb'
Note, selecting 'wicd-gtk' instead of './wicd-gtk_1.7.4+tb2-6_all.deb'
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
python-gtk2 : Depends: python-cairo (>= 1.0.2-1.1) but it is not installable
Depends: python-gobject-2 (>= 2.21.3) but it is not installable
wicd-daemon : Depends: python-dbus but it is not installable
Depends: python-gobject-2 but it is not installable
E: Unable to correct problems, you have held broken packages.
and I don't know how to fix the issue.
Note: I'm using Ubuntu 20.10.
