Recently, a number of users who have not been connected to their Wi-Fi network after updating the Galaxy A5 (2016) have reported themselves. An authentication error occurs. The solution below is effective in many cases.
Guide To Fix WiFi Authentication Error In Galaxy A5
The following steps may help resolve the Wi-Fi authentication error, although we do not offer any guarantees of course. A final fix is likely to come with a subsequent firmware update. But until then, these steps can lead to a workable solution:
- Go to Connections via Settings
- At the top, tap the word Wi-Fi (not the switch behind)
- Now choose Advanced followed by disabling Wi-Fi in sleep mode
- Select Never (increases data usage)
- Restart the device (even if it was not even necessary for us)
- Return to the same menu to leave Wi-Fi in sleep mode
- And now select Always (increases battery consumption).
If all goes well, an established Wi-Fi connection will remain active and will no longer be disrupted by the authentication error. On our device, the error resurfaced afterward after rebooting the device later. However, leaving Wi-Fi turned on in sleep mode again between Never and Always disappeared the bug – so far forever.
