Hi LIGHTGRABBER1,
If you haven't done so yet, restart your Mac. Although simple, restarting will refresh the connection, which may help with the installation. You can also connect to a different network to see if you're able to install the program. This will help with isolating the issue and let you know if the issue was possibly related to the network your Mac is currently connected to.
If those steps don't help, try testing the issue in safe mode. This will start up your Mac so that it performs certain checks and prevents some software from automatically loading or opening, which could help narrow down the cause of the issue. This article will walk you through the steps: How to use safe mode on your Mac.
Apple silicon
1. Shut down your Mac.
2. Turn on your Mac and continue to press and hold the power button until you see the startup options window.
3. Select your startup disk, then press and hold the Shift key while clicking “Continue in Safe Mode.”
4. Log in to your Mac. You might be asked to log in again.
Intel processor
1. Turn on or restart your Mac, then immediately press and hold the Shift key as your Mac starts up.
2. Release the key when you see the login window, then log in to your Mac.
3. You might be asked to log in again. On either the first or second login window, you should see ”Safe Boot” in the upper-right corner of the window.
If the issue persists, reply with the answers to these questions for more help:
- What happens when you try to install the program?
- If you see an error message, what does it say?
Regards.