I'm facing a weird issue with my TP-Link XC220-G3V. I purchased it to replace my dead ONT. I configured it, enabled VLAN and was able to access the internet. After I switched it off for the day and turned it on again the next day morning I was not able to access the internet so I went to the Internet Connection Setup Page and saw everything is fine I just clicked on Save and internet was back again. Just to check if the problem was fixed or not I switched it off and on again, and the problem was back there was no internet. Again I go to the Internet Connection Setup Page, I don't have to change anything just need to click on Save and the internet comes back. Any idea how to fix this?