I'm having problems with setting up my Wi-Fi connection. I was able to connect yesterday after working with McAfee, they had to add an exception to the firewall to allow the camera to access. Today, I am not able to connect. I have turned off my McAfee firewall and real-time scanning to no avail. I called McAfee again and nothing gained there, just turned off the firewall and real-time scanning. They wanted to uninstall McAfee completely and I didn't want to do that. I called Canon and we went through the Wi-Fi setup. Changed some settings to automatic connect, but still no luck. I called my ISP, Verizon, to get help from the router side and they basically said since I had Windows 10, they couldn't help me. I erased my currect Wi-Fi settings, but it did not go into where I input the setup, the camera tries to connect as it did before I erased the settings.
Verizon said they don't have a handle on Windows 10 at this point, or something to that effect.
When I try to connect my camera, it appears to be able to connect to the router, it displays the SSID and then searches for a device (my computer.) It fails to find my computer at that point. I called Canon again and they said the computer needs to be on Wi-Fi also. I had my computer hard wired to the router via an Ethernet connection. I switched it over to a Wi-Fi connection and that didn't make any difference.
You should be using your own router, and using your ISP only for internet service. Otherwise, everytime your ISP changes equipment, you will have to reconfigure and reconstruct your entire LAN.