XR 500 keeps rebooting

[Willback15]

So my XR 500 just started reseting multiple times a day. I got it in april and had no issues but lately it has gotten bad. Ive tried hard reset and changing the wall outlet but nothing. The wifi from the router will go out and then like 30 seconds later all the lights will shut off and it will start rebooting.

[FURRYe38]

What Firmware version is currently loaded?
What is the Mfr and model# of the Internet Service Providers modem/ONT the NG router is connected too?
Be sure your using a good quality LAN cable between the modem and router. CAT6 is recommended. 

Be sure to change the default IP address pool range to 192.168.1.100 to .200. Apply an reboot the router. 

[Netduma-Fraser]

It sounds like the power adapter may be faulty, do you have another similar powered adapter you could try to see if it works?