@Away Hi, glad to hear that it works, you may then leave the NAT boost off to connect to the mail server. If need any further help, just let us know. Good day~

@Sanjit_ Hi, so is the 2.4G connection stable once you did those changes on the C6?

@Tarun_Kumar So what is the exact issue that you are experiencing with the C6 router? Please provide more details then we can continue to help and resolve it, thanks.

@Bananapantsu Hello, thanks for bringing this up again. What is the model number of your Epson printer? When it connects to the 2.4G network, does it get a correct IP address? Can you ping that IP...

@Wenlock00 Quite an old version, so I guess there was no limitation for the firmware upgrade on that version, that's why you can upgrade the US firmware. Are you able to downgrade to the previous...

@Tanmoy I see. Are there any advanced or special settings on the C6 router for the LAN devices? If possible, reset the C6 to factory defaults by holding the reset button on the back panel until all...