SavvyCAN v213 AP+STA mode == Comm validation failed?

[brainstorm]

With the following settings on the MeatPi OBD web interface and latest firmware flashed v1.71:

I add a new network connection to SavvyCAN:

It connects, shows some packets flowing and then it stops, here's the output from the "Device Console" on SavvyCAN's "Connection Settings":

~GVRetSerial()
~GVRetSerial()
TCP Connection to a GVRET device
Created TCP Socket
Connecting to GVRET Device!
Connecting to GVRET Device!
Write to serial -> e7 e7 f1 c f1 6 f1 7 f1 1 f1 9 
Write to serial -> e7 e7 f1 c f1 6 f1 7 f1 1 f1 9 
Got data from serial. Len = 3
Got data from serial. Len = 3
Write to serial -> f1 d 
Write to serial -> f1 d 
f1 0c 01 
f1 0c 01 
Got data from serial. Len = 26
Got data from serial. Len = 26
f1 06 00 20 a1 07 00 00 00 00 00 00 f1 07 6a 02 20 00 00 00 f1 01 8b 3e b1 0a 
f1 06 00 20 a1 07 00 00 00 00 00 00 f1 07 6a 02 20 00 00 00 f1 01 8b 3e b1 0a 
Got data from serial. Len = 17
Got data from serial. Len = 17
f1 0d 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
f1 0d 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
Write to serial -> f1 9 
Write to serial -> f1 9 
Write to serial -> f1 9 
Write to serial -> f1 9 
Write to serial -> f1 9 
Write to serial -> f1 9 
Write to serial -> f1 9 
Write to serial -> f1 9 
Write to serial -> f1 9 
Write to serial -> f1 9 
Write to serial -> f1 9 
Write to serial -> f1 9 
Got data from serial. Len = 4
Got data from serial. Len = 4
f1 09 de ad 
f1 09 de ad 
Got data from serial. Len = 20
Got data from serial. Len = 20
f1 09 de ad f1 09 de ad f1 09 de ad f1 09 de ad f1 09 de ad 
f1 09 de ad f1 09 de ad f1 09 de ad f1 09 de ad f1 09 de ad 
Write to serial -> f1 9 
Write to serial -> f1 9 
Got data from serial. Len = 4
Got data from serial. Len = 4
f1 09 de ad 
f1 09 de ad 
Write to serial -> f1 9 
Write to serial -> f1 9 
Got data from serial. Len = 4
Got data from serial. Len = 4
f1 09 de ad 
f1 09 de ad 
Write to serial -> f1 9 
Write to serial -> f1 9 
Got data from serial. Len = 4
Got data from serial. Len = 4
f1 09 de ad 
f1 09 de ad 
Write to serial -> f1 9 
Write to serial -> f1 9 
Got data from serial. Len = 4
Got data from serial. Len = 4
f1 09 de ad 
f1 09 de ad 
Write to serial -> f1 9 
Write to serial -> f1 9 
Write to serial -> f1 9 
Write to serial -> f1 9 
Write to serial -> f1 9 
Write to serial -> f1 9 
Got data from serial. Len = 4
Got data from serial. Len = 4
f1 09 de ad 
f1 09 de ad 
Got data from serial. Len = 8
Got data from serial. Len = 8
f1 09 de ad f1 09 de ad 
f1 09 de ad f1 09 de ad 
Write to serial -> f1 9 
Write to serial -> f1 9 
Write to serial -> f1 9 
Write to serial -> f1 9 
Write to serial -> f1 9 
Write to serial -> f1 9 
Write to serial -> f1 9 
Write to serial -> f1 9 
Write to serial -> f1 9 
Write to serial -> f1 9 
Write to serial -> f1 9 
Write to serial -> f1 9 
Got data from serial. Len = 4
Got data from serial. Len = 4
f1 09 de ad 
f1 09 de ad 
Got data from serial. Len = 20
Got data from serial. Len = 20
f1 09 de ad f1 09 de ad f1 09 de ad f1 09 de ad f1 09 de ad 
f1 09 de ad f1 09 de ad f1 09 de ad f1 09 de ad f1 09 de ad 
Write to serial -> f1 9 
Write to serial -> f1 9 
Got data from serial. Len = 4
Got data from serial. Len = 4
f1 09 de ad 
f1 09 de ad 
Write to serial -> f1 9 
Write to serial -> f1 9 
Got data from serial. Len = 4
Got data from serial. Len = 4
f1 09 de ad 
f1 09 de ad 
Write to serial -> f1 9 
Write to serial -> f1 9 
Got data from serial. Len = 4
Got data from serial. Len = 4
f1 09 de ad 
f1 09 de ad 
Write to serial -> f1 9 
Write to serial -> f1 9 
Got data from serial. Len = 4
Got data from serial. Len = 4
f1 09 de ad 
f1 09 de ad 
Write to serial -> f1 9 
Write to serial -> f1 9 
Write to serial -> f1 9 
Write to serial -> f1 9 
Write to serial -> f1 9 
Write to serial -> f1 9 
Got data from serial. Len = 4
Got data from serial. Len = 4
f1 09 de ad 
f1 09 de ad 
Got data from serial. Len = 8
Got data from serial. Len = 8
f1 09 de ad f1 09 de ad 
f1 09 de ad f1 09 de ad 
Write to serial -> f1 9 
Write to serial -> f1 9 
Got data from serial. Len = 4
Got data from serial. Len = 4
f1 09 de ad 
f1 09 de ad 
Write to serial -> f1 9 
Write to serial -> f1 9 
Write to serial -> f1 9 
Write to serial -> f1 9 
Got data from serial. Len = 4
Got data from serial. Len = 4
f1 09 de ad 
f1 09 de ad 
Got data from serial. Len = 4
Got data from serial. Len = 4
f1 09 de ad 
f1 09 de ad 
Write to serial -> f1 9 
Write to serial -> f1 9 
Got data from serial. Len = 4
Got data from serial. Len = 4
f1 09 de ad 
f1 09 de ad 
Write to serial -> f1 9 
Write to serial -> f1 9 
Write to serial -> f1 9 
Write to serial -> f1 9 
Write to serial -> f1 9 
Write to serial -> f1 9 
Got data from serial. Len = 4
Got data from serial. Len = 4
f1 09 de ad 
f1 09 de ad 
Got data from serial. Len = 8
Got data from serial. Len = 8
f1 09 de ad f1 09 de ad 
f1 09 de ad f1 09 de ad 
Write to serial -> f1 9 
Write to serial -> f1 9 
Got data from serial. Len = 4
Got data from serial. Len = 4
f1 09 de ad 
f1 09 de ad 
Write to serial -> f1 9 
Write to serial -> f1 9 
Got data from serial. Len = 4
Got data from serial. Len = 4
f1 09 de ad 
f1 09 de ad 
Write to serial -> f1 9 
Write to serial -> f1 9 
Got data from serial. Len = 4
Got data from serial. Len = 4
f1 09 de ad 
f1 09 de ad 
Write to serial -> f1 9 
Write to serial -> f1 9 
Got data from serial. Len = 4
Got data from serial. Len = 4
f1 09 de ad 
f1 09 de ad 
Write to serial -> f1 9 
Write to serial -> f1 9 
Write to serial -> f1 9 
Write to serial -> f1 9 
Write to serial -> f1 9 
Write to serial -> f1 9 
Write to serial -> f1 9 
Write to serial -> f1 9 
Write to serial -> f1 9 
Write to serial -> f1 9 
Write to serial -> f1 9 
Write to serial -> f1 9 
Write to serial -> f1 9 
Write to serial -> f1 9 
Write to serial -> f1 9 
Write to serial -> f1 9 
Write to serial -> f1 9 
Write to serial -> f1 9 
Comm validation failed.
Comm validation failed.

I'm based in Melbourne if you want to see it for yourself, happy to drive wherever you might be and show this in person ;)

[brainstorm]

After trying different settings I might have found the problem:

1. AP+STA mode: behavior described above.
2. AP only mode: Works!

Could it be that it's trying to wifi scan and trying to connect to the defined STA and it breaks the connection with GVRET/SavvyCAN?

[brainstorm]

Perhaps duplicate of #49?

[meatpiHQ]

@brainstorm

I'm based in Melbourne if you want to see it for yourself, happy to drive wherever you might be and show this in person ;)

Don't bother I'll take your word for it :)

After trying different settings I might have found the problem:

AP+STA mode: behavior described above. AP only mode: Works! Could it be that it's trying to wifi scan and trying to connect to the defined STA and it breaks the connection with GVRET/SavvyCAN?

Seems there's a bug in the my SavvyCAN implementation.. enabling AP+STA bricks the device. I'm looking into it.

[meatpiHQ]

@brainstorm Is your device connected to your home WiFi, did it get an IP?

[brainstorm]

No it wasn't, I was testing in the car, away from home, so it was not connecting to the defined home network.

[meatpiHQ]

@brainstorm please try this update.

SavvyCAN accepts UDP broadcast to detect devices or WiCAN, I think the issue was that it keeps broadcasting even when it's connected. This update should fix it.

wican-fw_v172b_hv300.zip

[brainstorm]

Thanks for the fast response, @meatpiHQ, unfortunately after flashing, verifying the update got applied in the "About" tab, rebooting and re-enabling the AP+sta mode, away from my home network (and in proximity), it fails in the same way: SavvyCam flags a "Comm validation failed" error :/

[meatpiHQ]

@brainstorm it's working for me. Are you using MAC os?

[brainstorm]

@brainstorm it's working for me. Are you using MAC os?

Yes I am, OSX Ventura on an M1.

[brainstorm]

Fast forward in the future, this is no longer a problem with firmware 2.90, yay! :D

Thanks @meatpiHQ for your epic support!