Hi all,
I have an Arduino Mega 2560, and a WiFi101-shield. Today i wanted to update certificates to the WiFiShield with the Firmware Updater, but I could not get it running with arduino IDE 1.8.13 - I always get an error message "Programmer not responding" (Yes, I downloaded the sketch to the board, and that worked fine)
I tried to follow How to update the WiFi Nina and WiFi101 firmware, which was not possible, because the programmer could not connect.
The CheckWifi101FirmwareVersion worked:
WiFi101 firmware check.
WiFi101 shield: DETECTED
Firmware version installed: 19.5.4
Latest firmware version available : 19.6.1
Check result: NOT PASSED
- The firmware version on the shield do not match the
version required by the library, you may experience
issues or failures.
Of course I could not update the firmware without connection to the programmer 
As I knew this worked on my old PC, I tried an old version of the Arduino IDE. 1.8.10 did not work as well, but 1.8.5 worked - I could update the certificates 
Still, with 1.8.5 I cannot update the firmware, because the newer version is not available in the firmware updater.
Even if its working now, I would like to use up2date-versions.
Any ideas?
Any help would be appreciated,
Thanks & Regards,
Klaus