Hi @TarynH
Here are the basic steps for identifying and addressing port conflicts:
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Stop all sites that are running in Local
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Force quit Local
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(If using Mac) Run the command
lsof -nP -iTCP -sTCP:LISTEN
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(If using Windows) Run the command
netstat -ano
What you’ll be looking for here is to see when sites are stopped and Local is properly shut down if there are still programs running on ports 80 and 443. These may be conflicting with Local or the system may be reporting Local is still running.
Once you run that command you should see a list of listening ports. If you see a particular program making use of those ports, you can then kill that process by running sudo kill -9 XXX
where XXX is the PID number of that process. (On Windows you will use taskkill /F /pid XXX
where XXX is the PID number of that process)
There are also some more details around this and other troubleshooting steps at this link if needed: Stopping Whatever Is Listening On Port 80.