@RickJamesBish You can try changing the Tx Power. If you turn it up, the EAP threshold for client connections will be larger, if you turn it down, it will be smaller. This way you can adjust the Tx...

@PYLE17 This switch is an Umanaged switch, no IP address, no web interface, you can not change any settings on it.

@ZivK Check this: https://community.tp-link.com/en/business/forum/topic/588078

@RickJamesBish Check this: https://community.tp-link.com/en/business/forum/topic/577666

@YO73 No, unfortunately, neither IPsec nor OpenVPN are currently supported.

@johnsnow88 I'm using the latest one 5.0.9, so if you downgrade the firmware version back to 5.0.7, will the problem be solved?