NET::ERR_CERT_COMMON_NAME_INVALID is an error caused by a Man-in-the-Middle attack. Your router is intercepting your HTTPS requests to Patriots.win and redirecting you to the "warning" page.
As you noted in your post, this is caused by McAfee "Secure Home Platform".
You can follow the steps below to disable "Secure Home Platform" on your router.
NOTE:
The hardware reset clears any changes made to the router, including any changes to the administrator account, password, and Wi-Fi settings.
After you follow these steps, SHP Parental Controls no longer manages your devices and the always-on protection is disabled.
Steps:
Hardware Reset (using the reset button on the router).
Press and hold the reset button on the SHP router for about 30 seconds.
Wait about two minutes for the router to boot.
Decline the End User License Agreement (EULA) on the Welcome screen
On the SHP Welcome screen, click the I don't agree - disable Secure Home Internet link near the bottom of the screen.
Wait a few minutes for the service to stop. The device will now operate as a standard router. To confirm, browse to pr0xy.org. This page is not blocked because SHP is disabled.
Alternatively, if you own your router and it is compatible with OpenWRT, you can flash it and replace your stock firmware.
ah thank you patriot, I read too fast as I often do. Testing across Firefox, Brave, Edge, Falkon and same result. the VPN on Brave fixed it, why I am able to respond to you now. I noticed this starting to happen about 4 days after GEOTUS got ban-hammered in conjunction with Mozilla spouting off their shit and now here we are.
researching: its modem-based software that mcafee will blacklist and beam to the modem. it is affecting all browsers on the host. VPN ftw.
This looks like DNS hijacking as done by your router.
Follow this guide on an affected computer to change your DNS servers to:
These are FreeDNS DNS servers. They are uncensored.
Tell me if that resolves the problem. If it does, I will walk you through making the setting change on your router.
DNS didn't solve. VPN through Brave did.
OK, just saw your comment on Technology.
NET::ERR_CERT_COMMON_NAME_INVALID is an error caused by a Man-in-the-Middle attack. Your router is intercepting your HTTPS requests to Patriots.win and redirecting you to the "warning" page.
As you noted in your post, this is caused by McAfee "Secure Home Platform".
You can follow the steps below to disable "Secure Home Platform" on your router.
NOTE:
Steps:
Alternatively, if you own your router and it is compatible with OpenWRT, you can flash it and replace your stock firmware.
Thanks fren, fixed. OpenWRT compatible router next, after the move.
problem affects all browsers. it's modem side software issue
ah thank you patriot, I read too fast as I often do. Testing across Firefox, Brave, Edge, Falkon and same result. the VPN on Brave fixed it, why I am able to respond to you now. I noticed this starting to happen about 4 days after GEOTUS got ban-hammered in conjunction with Mozilla spouting off their shit and now here we are.