TP-Link support emailed me a link to a downgradable firmware V. 1.2.0 file. After installing V. 1.2.0 my Ax55 has been up for 3 days with no problems. Hope they can help you also. Niabil.

@niabil As per TP-Link Support I have downgraded my AX55 firmware to Version 1.2.0 for checking. I did the change at 7:00 AM Wednesday June 1, 2023, as of this writing 12:25 AM June 2, 2023 I have...

AX55 drops the internet connection every 8 to 10 hours, I have to turn power off and on to reconnect. When this happens all lights stay on green but I cannot access the router through Wi-Fi or...