[Trisquel-users] login keyring and wifi

[adel]

Sometimes when I try to connect to wifi, Trisquel tells me something like  
"the login keyring did not unlock when you logged in to your computer; please  
enter the login keyring password".

I don't remember ever making a password for a login keyring.
What's a login keyring?  Can I leave it unlocked all the time?  Should I?