Hi, first let me set the scene, we live in an old Victorian stone-built house with walls over 2ft thick. Our ISP enters the house via an extension to the main building, this is then connected to a gigabit switch which has cat5e cabling routed to the two main downstairs rooms, these rooms both have a TL-WA901ND working in Access Point mode, one room upstairs has a TL-WA901ND working in Universal Repeater mode. There are roughly 16-18 devices connected to the WiFi, these are iPhones, iPads, an Xbox-One, Amazon Alexa devices, "smart" bulbs etc.

On a daily basis connected devices will lose internet connectivity, this can be remedied by rebooting the TL-WA901ND's but is becoming a pain in the bum if i'm honest. Nothing on a wired connection loses connectivity and the TL-WA901ND are still accessable via LAN.

i previously had two slower AP's from a different manufacturer which worked for months at a time without need of rebooting, i upgraded to the TL-WA901ND for faster speeds and hopefully similar reliability which now seems not to be the case.

does anyone have any ideas on how to remedy this problem?

thanks