Canon radio-controlled flashes failing in use - Senders and receivers disconnecting

[mHeston]

Hi,

I am spreading the news about the failure of communication between Canon "Sender" (Master) flashes and Canon "Receiver" (Slave) flashes.  Since around 2020 the communication between Master and Slave flashes can be broken by a public radio wave of some kind.  I’m not an EE, so I can’t tell you what the source of the problem is, but I can tell you that I have tested equipment all over the greater Seattle area, and about 80% of the time the Slaves disconnect from the Master in under 20 minutes of being turned on.   The shortest time to disconnect happens in 60 seconds with most disconnects occuring in 8-12 minutes.  I’ve only tested this in the greater Seattle area, but I suspect that if you are in a major urban area you will experience this failure.

I’ve tested this with Canon 600EX RTs and with a new R3, RL-5, and ST-E10, so it’s happening to the latest Canon equipment. 

You can read about what I’ve tested here: https://hestonphoto.com/info/canon-flash-failure-01.html

[mHeston]

Thanks for the info on the ST-E3-RT (V3)   Disappointing, but not surprising.   I kind of figured given that the EL-5 and EL-1 also fail this very basic proceedure.

[VegasCameraGuy]

I just finished a photoshoot with my R5 and a Godox AD360ii-c flash with a Godox X3 Xnano trigger. I shot almost 700 flash images without a single issue. As a suggestion, you might try a Godox or Flashpoint trigger to see if that makes a difference. With my EL-1, I typically connect it to the R5 with a cable connector. As soon as I get a chance, I'll try using the X3 to wirelessly fire the EL-1 to see if it drops a link.

[wq9nsc]

I use Hensel Expert D (three 500 and one 1,000 watt unit) studio strobes along with a couple of their Integra series strobes and I have used them on location multiple times without a glitch including twice where Canon flashes were failing.  The Hensel units worked perfectly without drama including creating their own standalone WiFi network allowing adjustment of power output, modeling lights, test firing, etc. from the Hensel phone app.

I suspect the anger at Canon over this issue is because most of us have been Canon users for many years because of Canon's performance, product quality, and reliability which has been coupled with excellent customer service.  If these failures were occurring with a "Me Flash TOO" or some bizarre Amazon sourced brand then this level of irritation wouldn't exist.

Rodger

[mHeston]

Thanks for the info.  I know there are lots of solutions out here... however my point is that Canon is not responding or fixing the problem, which leads me to have to consider dumping all my Canon gear for another brand.  If they are unwilling to acknowledge the problem and take steps to fix the problem (not necessarily in old equipment), then they are out of touch with the community and I'm not sure I want to keep giving them money.  Problem is, that they are into me for $45K+ and for me starting over is a bit challenging.

[JLCKJC]

I am feeling the same way. Canon keeps introducing new products using the same unusable Wi-Fi communications system. It does cause one to wonder how in touch they are with their customer's needs and concerns.

[mHeston]

I get that on the "Old" equipment.  But for gosh sakes, to issue a brand new flash this year with the same problem points to a deeper problem, and given that many report using competitive brands without issue means it can't be that tough to figure out.

[BillWayToday]

I have the exact same behavior and it's frustrating!  Suburban Denver with a wi-fi router (of course) and lots of wi-fi devices in the house (of course). 

Hey, Canon!  WHY doesn't the software initiate a re-link when it drops? 

[BillWayToday]

It is happening everywhere.  Read on...   

[BillWayToday]

Yes - a change in fw would be about the only thing to fix it.  The 5gig band is full of signals and not likely to quiet down any time soon.  

[JLCKJC]

I've been looking for a way to preserve some of my Canon flash investment while hoping that Canon will eventually come up with a possible fix for the Wi-Fi issues afflicting their system. After reading the posts of a few other beleaguered users I came upon a thread a few weeks ago that posed a possible but clumsy interim solution.

To try it out, I purchased a Godox X Pro II C trigger and three Godox X1RC receivers for my Canon R5 and my three 600EX II RTs. These Godox models have been specifically modified to work with the Canon system. The trigger goes on the camera of course and the flashes are mounted to the hot shoes of the Godox receivers and put into manual mode. Basically, you are in effect replacing the Canon wireless connection with the Godox connection which communicates between the camera and flashes and controls them in TTL or manual mode. The system also has the ability to transfer an ETTL/TTL exposure to a manual setting if you want to. You have 32 channels and groups A through F as well as user unique codes.

But most importantly, when I played with this system this afternoon where my Canon flashes failed miserably time after time losing the Wi-Fi connection over and over no matter the settings, the Godox system worked flawlessly. I know it's a kludge, but it works and gets me a workable system for about $210; $90 for the trigger, $40 for each receiver (3 in my case).

I hope this information is useful to one or more of you out there as we wait for a response from Canon. If Godox can design a reliable system, surely, you'd think Canon can too.