Failed to connect to GVRET at that com port

[jannerboyjohn]

Guys, I have the ESP32 board connected to the laptop with the Windows driver for Silicon Labs installed to recognise the device and com port. Installed the ESP32RET_Updater firmware ok. I am at my wits end with this trying to get the device to connect to SavvyCan. I use the Serial Connection GVRET. Doesn't matter what I try just getting the following type of error and continously scrolling data in the device console window.
Connecting to GVRET Device!
Write to serial -> e7 e7 f1 c f1 6 f1 7 f1 1 f1 9
Failed to connect to GVRET at that com port
Serial connection to a GVRET device
Created Serial Port Object
Trying Standard Serial Mode
Connecting to GVRET Device!
Write to serial -> e7 e7 f1 c f1 6 f1 7 f1 1 f1 9
Failed to connect to GVRET at that com port

I must be missing something for this to work/connect? Hopefully I have ! :-)
Appreciate if someone could help me resolve this.

Cheers, John

[DenisK63]

Ive got the same issue. Im posting a screenshot.

[casefarmer1]

I'm running into the same problem, have you found the solution?

[ph-wheels]

same error & behaviour for me and I also tried it on MacOS with same result, tested it on multiple ESP boards, these are all ESP-VROOM-32D or ESP-VROOM-32U boards with esp chip's D0WD V1 & D0WDQ6 V1 all of these have an Silabs CP2102 uart and the ESP32RET loads fine, any clue or suggestion to resolve this ? Many thanks for your feedback

[MotorvateDIY]

Just use WiFi.

[meowmachine]

what do you mean? ESP32RET_Updater doesn't use wifi as far as I know. It turns your ESP32 into a serial device... Can you elaborate?

[meowmachine]

Nevermind. I see it's supposed to create a wifi AP but mine doesn't for some reason. Not sure why.

[ph-wheels]

Ok, thanks, with opensource wifi dongle van you adviseur Verzonden vanuit Outlook voor iOS  Van: Frank Motorvate ***@***.***>Verzonden: dinsdag, februari 4, 2025 2:38 PMAan: collin80/SavvyCAN ***@***.***>CC: Paul ***@***.***>; Comment ***@***.***>Onderwerp: Re: [collin80/SavvyCAN] Failed to connect to GVRET at that com port (Discussion #868)  Just use WiFi. —Reply to this email directly, view it on GitHub, or unsubscribe.You are receiving this because you commented.Message ID: ***@***.***> Verzonden vanuit Outlook voor iOS

[meowmachine]

I also have the same issue. I've been trying to figure this out for weeks. Please help.

I am using the ESP-WROOM-32. I was able to flash the device using ESP32RET_Updater. I have tried flashing it from different computers and using Savvycan from different computers but no luck.