Every time I try to use Garmin Express it stops the WiFi on my computer.
It’s been like this ever since I bought it.
any ideas please?
Tell us about your PC (desktop or laptop and operating system, Windows 10, 11 or what?) and what Garmin device you are using.
You might want to review the video at the link below. In particular early on in the video content the narrator states that when connected to your PC (with a cable) you will not be able to do updates wirelessly…
Try using the Internet Connections troubleshooter.
Select Start > Settings > Update & Security > Select "Troubleshoot" (left edge of screen) > Select "Additional troubleshooters" > Run the "Internet Connections…
You might want to review the video at the link below. In particular early on in the video content the narrator states that when connected to your PC (with a cable) you will not be able to do updates wirelessly. So the question is does the Wi-Fi stop on your PC, or does it just make the nuvi 66 unresponsive to Wi-Fi?
I watched the video. I have tried several times to update wirelessly with my device not connected at my computer (but connected to a power source).. After an hour or so of updates doing their thing, the device says they were unsuccessful and to use Garmin Express. And I am back to connecting it to my PC and it disabling the WiFi on the PC. I'm stuck in an unsuccessful loop!
Try using the Internet Connections troubleshooter.
Select Start > Settings > Update & Security > Select "Troubleshoot" (left edge of screen) > Select "Additional troubleshooters" > Run the "Internet Connections" troubleshooter (usually at the top of the screen.
When the troubleshooter is finished running, it's a good idea to restart your device.
I agree with using an ethernet cable instead of wi-fi if possible. If not, try connecting the Garmin to a different USB port. If the wi-fi relies on a USB wi-fi adapter and you only have two USB ports, swap which ports the two devices are plugged into. If there are more than two ports, test different combinations of ports.
It will be interesting to hear the response from the OP but there conceivably may be a physical limitation that prevents the use of an Ethernet cable. I for instance have a friend that relocated his "home office" to a larger room during the pandemic and I helped set up WiFi (Verizon) as opposed to him doing costly modification to his former wiring.