“Looking for …”
Second Display is finding the display Mac. Keep the app open there.
“… not found. Is it awake?”
If the other Mac isn’t found
“Reconnecting…”
The connection dropped for a moment, and Second Display is getting it back.
“Cable unplugged”
The cable was unplugged
“Stopped from the screen recording menu”
The recording was stopped from macOS’s indicator. Turn the display on again in the menu.
“Second Display was quit on …”
Open Second Display again on the display Mac.
“… went to sleep”, “This Mac went to sleep”
It connects again when the Mac wakes.
“The other Mac needs an update”, “This Mac needs an update”
Update Second Display on the Mac it names. Updates
“The previous session is still closing…”
macOS is still removing the display of the last session. Second Display tries again by itself; give it a minute.
“Couldn’t start. Is this Mac locked?”
Unlock the Mac you work on.
“Can’t show your screen”
Screen Recording is off for Second Display. Allow Screen Recording
“Local Network access is off”
Allow Local Network access
“Sign in to connect”, “Free hour ended”
Sign in to start your free trial. The free trial
“Trial ended”
Buy Second Display to keep using it. Buy Second Display
“Licence check needed”
Connect to the internet once, so Second Display can check your licence.
“Stopped. This connection is turned off in Settings.”
Turn on Allow Wi‑Fi and Ethernet in Settings › Connection, or use a cable.