@dc42 thanks you, I tried but same result. I fallback to 1.27 until new release.

Hi

I got a strange problem after upgrade the Wifi firmware to 2.1beta. Duet2 wifi will report authentication error even access point name and passphrase are correct. I have done below to troubleshoot,

1. M552 S-1 then M552 S0, and then M588 S"*" and M587 S"xxx" P"xxxxxxxx" to add my wifi info. After enabled by M552 S0, it reports authentication error.

2. Flash WIFI firmware 2.1b2, and steps 1), same error

3. Flash wifi firmware 1.27, Wifi connected successful.

4. Delete info in v1.27, and then flash to firmware 2.1b3, same error.

5. Iphone hotspot, wifi firmware 2.1b3, connected successful.

6. Split the wifi router 2.4G g/n out, change the Wifi setting to be same as iphone hotspot. Cannot connect, same error.

7. Change the wifi channels, all failed with the same authentication error.

Router is TP-Link, it works well with other devices and 1.27 firmware. Wifi chips is ESP-12S.

Any idea?

Thanks.