I just got a brand new Garmin Edge 1040 Solar and i can NOT believe still this BUG and limitation exist and has not been fixed by Garmin.
This is a known bug for over 2(!) years.
Garmin has limit the wifi password for WPA2 wifi networks to 26 characters, why????
I wonder why that makes any sense instead of using wifi protocol standards.
There has provided a "work-around" by other users to update Wifi password via the Garmin Connect app but that does not work for me.
When i add the network and password via Garmin Connect app via Bluetooth it shows a message in Garmin Connect that the tested connection is successful, however, when i go to "Settings, About, Check Updates via Wifi" it shows an error code 0600 after about 30 seconds "Can not connect to wifi. Code 0600"
Firmware v21.17 (updated via Bluetooth).
Photos of error and screenshots of successfuly testing wifi network on phone, Garmin Connect app => Edge 1040 Solar.
.