@kanchil If you can ping hostnames of windows machines, there is a local dns working on your LAN. What does the dns entry look like in your ethernet/wifi properties? Have you tried manually...

@exactspace Hopefully they can fix it with a firmware update so that you don't need to return or purchase anything.

@exactspace I would ask tp-link support if anything can be swapped, but if you are past a return window when you bought the units they would not necessarily be obligated to do so....

Hi @Ryan - is there any status update on this being implemented? Thank you for any information you can provide.

@exactspace Your deco s4's may have different hardware versions between them. Some versions of it don't have 1.6.1 listed. https://www.tp-link.com/us/support/download/deco-s4/v3.6/#Firmware

@Napsterbater The time it takes to find the hidden SSID is more than looking at the wifi network list on a device.