Sorry don't know what DNS64/NAT64 is and how it works

but I connected my CPE directly to my
Windows computer just now in bridge mode and ping to
1.1.1.1 works
@dexter22 Ah, I think I understand now. So in the screenshot you shared, the 192.0.0.1/192.0.0.2 IPv4 addresses imply that CLAT (customer side translator) is enabled. So in
Windows, CLAT is enabled only for WWAN interfaces, and sure enough this should be a WWAN interface. However for some reason, for me, it is not considered as a WWAN interface so CLAT doesn't get enabled for me.
Since CLAT is enabled, ping to IPv4 by IP address will work.
Yep, so this makes sense, just need to figure out why in my case its not considered as a WWAN interface on Windows. On MacOS it works as it should (although in MacOS, CLAT is enabled for any IPv6 only network (if the appropriate message is sent via DHCP, which Jio does))
Also regarding IPv6, from the screenshots, your WAN interface on the
TP-Link device seem to be doing CLAT, so only IPv4 access for client devices. The IPv6 address that you see is from the private IPv6 range (fe80.xxx), not the public Jio IPv6 addresses.
Are you able to access an IPv6 only endpoint from the client devices connected to the TP-Link device? Or ping say an IPv6 IP address
2001:4860:4860::8888 (
Google DNS)