12-25-2020 08:03 AM
05-29-2021 04:56 PM
I have experienced the exact issue described in this thread. My R5 throws an Err 127 when trying to connect to image.canon through my local wifi network. The R5 does successfully connect to image.canon through my iPhone's wifi hotspot—even though the iPhone is connected to the exact same local wifi network.
The solution for me (or workaround, depending on how you look at it) is to connect the R5 to my router's guest network. I can't explain why this works but connecting this way has completely resolved the problem. Hopefully, it does the same for everyone else experiencing this issue.
One thing to be aware of when using your wifi guest network is that you will not be able to connect your R5 to computers on your local network. Should you wish to use EOS Utility to control the camera or wirelessly transfer files across your local network (which is much faster than going through image.canon), you will have to switch the R5 back to your normal [non-guest] wifi login.