Xerus upgrade, cannot update: failed to download repository

[Rrory]

I upgraded to Xerus no problem, no with updates I get a red triangle with an exclamation ! telling me the update information is outdated due to network problems or repository is no longer available. Then when I do try to update I get this message: failed to download repository information (check your connection).

My connection is fine, sometimes I'll check and it says my system is up to date. I do get the gray screen a lot since I upgraded. Trusty Tahr LTS was so great I never had problems.ugh

Not very technically inclined so please help!
Rory

[Impavidus]

What do these terminal commands tell you?
sudo apt update
sudo apt upgradeThey should give us more meaningful error messages.

[grahammechanical]

I do get the gray screen a lot since I upgraded.

Does this happen with Libreoffice 5? It does on my system. I do not put the blame on the OS. Have you installed any PPAs? You may have installed a PPA that does not exist for 16.04. That will cause this problem. And we will know for sure from the output of those 2 commands.

Regards.

[Rrory]

okay after sudo apt update I got this:

E: Failed to fetch http://dl.google.com/linux/talkplugin/deb/dists/stable/Release No Hash entry in Release file /var/lib/apt/lists/partial/dl.google.com_linux_talkplugin_deb_dists_stable_Re lease which is considered strong enough for security purposes
E: Some index files failed to download. They have been ignored, or old ones used instead.

after sudo apt upgrade no error message got lots of xenial-updates files and they were sucessfully installed.
thanks both of you for you help!

Never had gray screen with LibreOffice 5.

[QDR06VV9]

okay after sudo apt update I got this:

E: Failed to fetch http://dl.google.com/linux/talkplugin/deb/dists/stable/Release No Hash entry in Release file /var/lib/apt/lists/partial/dl.google.com_linux_talkplugin_deb_dists_stable_Re lease which is considered strong enough for security purposes
E: Some index files failed to download. They have been ignored, or old ones used instead.

after sudo apt upgrade no error message got lots of xenial-updates files and they were sucessfully installed.
thanks both of you for you help!

Never had gray screen with LibreOffice 5.
See this for the Error shown: http://askubuntu.com/questions/760305/how-to-install-google-talkplugin-deb-in-ubuntu-16-04

[Rrory]

Okay, thanks I unchecked the plugin repository and then tried the Software Updater. It downloaded and checked but in the middle it greyed out? Does this have to do with that plug-in or as said since I do have ppa packages?