Problem:
Checkboxes field filter is not working as expected.
Solution:
It seems that at some point the setting to save 0 for non selected option was activated. Check this screenshot http://prntscr.com/11c2nac
Toolset stores the values of a checkboxes field inside a serialized array and perform the search using the "LIKE" operator. When an option is saved with 0, it matches the LIKE operator. This gives unexpected results.
The setting is configured to save nothing when an option is not selected. You will have to manually update the erroneous posts on a search to save the correct values on the database.
The issue here is that the user is getting the following error.
"Toolset plugin cannot connect to toolset.com
Toolset needs to connect to its server to check for new releases and security updates. Something in the network or security settings is preventing this. Please allow outgoing communication to toolset.com to remove this notice"
Installer Log: Response = "Site key not matching"
Solution:
Go to Dashboard -> Updates and click on Check for Updates then try going back to your plugins page to see if the Toolset is still not connecting.