Hello @Mazzoladm, thank you for reaching out to us and welcome to the TP-Link community.

Is the network stable if you connect a PC to the AX73 with an Ethernet cable? How about the LED on the AX73, will it change to orange/red when the drops? If the internet LED changes to orange/red when the issue happens, I would suggest going through these troubleshooting suggestions to check if any helps.

If the Ethernet connection from the AX73 is stable and the internet is always green, but only the wireless is not stable, please remove the RE230 first to determine if the issue comes from the AX73 or RE230. You can try to modify the wireless settings on the AX73, such as wireless channel, and channel width as described here, then confirm if the connection is stable.

If the AX73 wireless connection is stable, then try reconfiguring the RE230, and be sure it is located in a proper location to receive and send a good signal. You may check here to get some clues.