600EXIi-RT won't stay linked to slaves (400's) in Radio Mode.

[Besnette]

Canon Speedlites

Pulling my hair out - Anyone else having trouble with the Canon speedlight system - specifially keeping your Master (600ex) connected to slaves during a shoot? Seems like they disconnect almost every time I take a shot, and I have to walk around and reboot each flash to get them to link again.

I've tried a few different channels, but no luck - is it just Wifi interference in homes?

Do I need to update firmware?    

[garmanmd]

There is another thread on this topic, with a lot of replies in thread.  Bottom line no known solution, and many are frustrated.  Canon seemingly either denies it's an issue or is staying on the sidelines