S6 Wifi 'authentication error occurred' since firmware-update

Asteroid

S6 Wifi 'authentication error occurred' since firmware-update

A few days ago my Galaxy S6 got a firmware-update to G920FXXu5EQI8.
Since then the wifi-connection to my router (FritzBox) does not work properly.
It works a few minutes then the connection is lost and the S6 shows 'authentication error occurred'.
The router manufacturer AVM has looked into the logs and says the problem ist caused by the S6.

219 REPLIES
Honored Contributor

Re: S6 Wifi 'authentication error occurred' since firmware-update

Hey Community! Anyone else seeing this problem? Anyone have a workaround? Let us know!  Smiley Happy


Be sure to click " ✓ Accept as Solution" when you find an answer that works for you.

Constellation

Re: S6 Wifi 'authentication error occurred' since firmware-update

I have the exact same issue since the last update. Also, my battery life has been horrible since the last update as well. I've reset my phone back to factory, deleted cache partition, nothing fixes it.

Astronaut

Re: S6 Wifi 'authentication error occurred' since firmware-update

I have the same error since several weeks (after OTA update).

 

Seems to be widespread and is discussed in a lot of forums.

 

Samsung must do something about.

Astronaut

Re: S6 Wifi 'authentication error occurred' since firmware-update

I've had the same issue since taking the latest update ended up with data charges from my carrier. Two other S6 in the house didn't take the update and they have no issue. Sometimes turning BT  off works sometimes not. Just got online by turning on airplane mode but what is the sense in that. Need an update to fix this crappy update!

Constellation

Re: S6 Wifi 'authentication error occurred' since firmware-update

Same problem here, only affecting the two s6's we have in our house, the s7's are fine. Happens at home and at work, called Samsung, they claimed it was because I didn't regularily wipe the cache partition, the only way I can connect is by wiping the cache partition, go to a different network if i want to connect I have to repeat. 

 

The battery drains like crazy because it's constantly trying to connect. This is a Samsung issue that they are ignoring, happened after the last update. 

Constellation

Re: S6 Wifi 'authentication error occurred' since firmware-update

Same issue here, on Galaxy S6 with Android 7.0, build NRD90M.G920FXXS5EQK9. Not a mesh network, but an access point configured to use the same SSID on 2.4 and 5GHz (TP-Link C5400 configured in "Smart Connect", which means there are internally multiple networks, but all with the same SSID). Restarting the WiFi doesn't help, neither does forgetting the network, the phone needs to be rebooted completely, and then it connects automatically again... for a short while.
Constellation

Re: S6 Wifi 'authentication error occurred' since firmware-update

I've the same issue.. I live in Italy and my s6 is a brand Vodafone . The issues has started since the last ota firmware update ..
In my case, moreover, a lot of battery drain is appeared..
Astronaut

Re: S6 Wifi 'authentication error occurred' since firmware-update

I also have the authentication error on my S6 when connecting to any WIFI network. I only found out because of huge extra data charges from my carrier.

I hope samsung fixes this error asap.

Constellation

Re: S6 Wifi 'authentication error occurred' since firmware-update

I have 2 S6's and am also seeing this same authentication failure. I can sometimes disable the WIFI, then enable it, and it will connect.