Archlinux connection problem after update

Hello guys, I update my system (Archlinux) the last week and was travel for new year, and now I have issues with the access to internet, I mean when I turn on the PC, first time after update.
Ill explain: when open Firefox, cant access to many pages (example: duckduckgo no, google yes) I have no idea why. My Jdownloader2 not work (show a connection fail, as if should be offline); is similar with the torrent (Transmission), I can open it but not download. Also RStudio show a connection problem.
I want to be clear in this point: I have internet, I mean the wifi work and some pages with mozilla (perhaps 2 or 3, ja ja) too. But this programs no, and the internet pages no.

The ping output:

[rodrigo@arch ~]$ ping google.com
PING google.com (2800:3f0:4002:803::200e (2800:3f0:4002:803::200e)) 56 data bytes
64 bytes from 2800:3f0:4002:803::200e (2800:3f0:4002:803::200e): icmp_seq=1 ttl=55 time=25.2 ms
64 bytes from 2800:3f0:4002:803::200e (2800:3f0:4002:803::200e): icmp_seq=2 ttl=55 time=32.7 ms
64 bytes from 2800:3f0:4002:803::200e (2800:3f0:4002:803::200e): icmp_seq=3 ttl=55 time=25.7 ms
64 bytes from 2800:3f0:4002:803::200e (2800:3f0:4002:803::200e): icmp_seq=4 ttl=55 time=23.8 ms
64 bytes from 2800:3f0:4002:803::200e (2800:3f0:4002:803::200e): icmp_seq=5 ttl=55 time=22.1 ms
--- google.com ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 4007ms
rtt min/avg/max/mdev = 22.107/25.901/32.733/3.633 ms
[rodrigo@arch ~]$ ping duckduckgo.com
ping: connect: La red es inaccesible

Im not using a firewall (only the iptables with the default settings).

I was looking some post but the problem is different, they usually havent connection after update, so it was not usefull.

Thank you, and happy 2020 for all.

Ruy