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Topic: Arduino Uno Wifi Rev2 Communication Failed (Read 446 times) previous topic - next topic


Mar 26, 2019, 10:15 pm Last Edit: Mar 27, 2019, 01:23 am by bthayer2
I was testing out example code in the WiFiNINA library earlier, specifically the WiFi SSL Client. I input my network credentials and uploaded the code. It was working and printing all of the bytes after connecting with Google, but then it froze after printing out many lines. I closed the serial monitor and it took a little while to close. When trying to run it again after uploading, all it prints is "Communication with WiFi module failed!". I cannot seem to connect with the "Wifi Module" anymore. I printed the actual WiFi.Status and it is always 255.
What I have tried: closing the Arduino IDE and restarting it as well as unplugging the USB. I tried uploading a new empty file in hopes of resetting everything. I tried uploading another sample from WiFiNINA such as the ScanNetworks. I tried updating the firmware to the current version and ran into issues with that the first time because an error popped up saying "Error while erasing flash memory". I tried again and I was able to update the firmware successfully. I am able to upload code; I uploaded the blink example and that works. I am not sure what is going because it was just working and I was able to talk to my wifi.

I resolved this. I did a series of events such as restarting my computer, downgrading and upgrading the firmware, resetting the Arduino, and disconnecting everything and it is somehow working now.

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