facebook app on android phone login issue

[afall]

I have strange issue that i am hoping someone could help me with.  I have a andorid phone with Android version 12. When i try to login into facebook using the app of the phone. I would get an error " Sorry unable to login. Please check your internet connection"  I have no firewall rule in place yet. The system is wide open.   

When i turn off the wifi to use the cellular network. I can login in just fine.   After login in via the cell network and i turn back on the wifi and browse facebook just fine as well.

[Sangito]

I some how having the same issue since the last update of OPNsense (21.7.7 to 22.1.2)
No blocking rule.
Same probleme on all my vlan.
i got many firewall hit on facebook API comm been block, but only for packet with flag "A".
According to this post : https://forum.opnsense.org/index.php?topic=20219.0
It suppose to be normal, but is the only anomally i found on my router related on facebook.
Is someone have any ideal  on how to desnap this?

Thanks

[Sangito]

It seem to work back when i use a vpn to by pass the router, soo it seem clear theire are something fishy here.
Keep investigate, but a hand would be welcome.

[rabi]

Have the same issue, weird!

[rabi]

I made a silly mistake, anyway, If you are using your old router as a switch, make sure you are plugging the cable in one of the LAN ports, not in WAN, same for all your access points.

In my case:
FIBER > OPENSENSE (pppoe) > SWITCH (old router as access point and opnsense cable connected to the lan port, not wan) > APs.

in short, don't use the wan port in any device after opnsense.

every thing working smoothly now.