Issue:
After rebooting the Ubuntu computer access to some network shares is not working anymore.
Example: network shares to reach Vutek controllers do not work anymore correctly.
Problem:
This situation may be linked to a kernel update of the Ubuntu operating system which altered connections to network shares using the SMB1 protocol. It's described in this Ubuntu bug.
The situation happens after updating the operating system and rebooting to apply the update, which then changes the kernel to version 6.2.0-31, the one having the problem.
You can check your Kernel version by typing the following line in a Terminal:
uname -r
Solution:
The problem has been corrected with a newer Ubuntu update that is providing kernel version 6.2.0-32 (or newer).
To install this new kernel you have to launch the Ubuntu updates again until there is no new update available. It may require to reboot the computer more than once.
To do updates Ubuntu has a specific application available in the general menu:
Once the update has been installed you have to reboot the computer to apply the changes.
When you are back in the system you can check which kernel you now have with the same command as before: uname -r It may be needed to launch again the update process to install all that is needed (and reboot again after).
A side effect of the solution:
It seems that the new kernel changes the way the file /etc/fstab is loaded. This file may contain some network share instructions so, in case you still have some missing network share after the update, we advise you to recreate the mount by using the Mount utility in CalderaDock (or by using the older MountTool application).