Hello,
We are wedding photographers who have used Canon 600EX II- RT's for years now. We use them for receptions and lighting the dance floor, speeches, and creative shots. We have never had issues with connectivity until around 2019/2020. All the sudden since, it has been getting worse and happening at more and more venues. We have found our flashes will not stay connected via radio transmitters at certain venues. We do channel searches, place our flashes in different areas, etc, same issue. We will connect for 2 min, then it will disconnect out of no where. We use mainly another 600 EX II RT as the trigger (master) and other 600 EX II RT as slaves. We honestly are sick of it and are thinking of ditching Canon. We haven't heard of any other flash brands having any issues. Only hesitancy we have is that we have already 8 of these purchased from years of buying them and don't want to have to replace them all with a different brand. Has Canon came up with a fix for this or bettering their flash products? I see this is a known issue and it seems the only "solution" is use Line of Sight. Which won't work for how we use them most the time. ANY HELP PLEASE?
