I'm afraid that the aotu mail log function does not support SSL/TLS encryption, which Gmail use in default.

According to your description, you have configured the C5 to an AP and I guess you choose dynamic IP method. That means the IP of C5 has been changed to which front-end router allocate to it. You...

1.Look at the panel of D9 and check at whether the two wifi indicator led are both on. If not, maybe the 5GHz wifi model doesn't work. 2.Try to reinstall the driver.

Title of the thread is 'AP client mode', but in the main text you said 'when I operate in Client Mode', do you mean 'AP Client Router Mode'? If I get the correct meaning, it's normal that in AP...

@danymarc In my opinion, what winstar means is that TDMA is not an working mode for TL-WA7210N like AP mode or Client mode. But it's the extra function when upgrades to the beta firmware.

When the WDR4300 is configured as access point, the DHCP should be disable. All the IP address is allocated by DHCP server in front of 4300. To avoid conflict, turn off the DHCP in WDR4300.