Followed the instructions on 1.1.1.1 site changing DNS setting on windows 10 and my previous router lets me access to other site, it doesn't work for ipv4 but changing ipv6 works for me. But after replacing to a new router(currently using: TP-Link Archer AX20/AX1800), it no longer works for both ipv4 and ipv6, i did changed it in my router and windows 10. i even tried testing on ipv6 site and i get 10/10 working score, and even 1.1.1.1/help saying 'YES', but still it is not working.