Packet loss in dungeons

So I have played the game since over a month now and more often than not, as a tank I had to deal with 2 major issues :

- mobs rubber-banding : stopping in place then moving behind me at the DPS/Healer, most of the time I manage to catch them but it’s very frustrating.

- GCD reset/GCD skills not going off : happens when I spam any skill liked to the GCD. I noticed waiting for the skills to «*flash*» in the UI can help but it’s not guaranteed.

For example I use my second combo skill, my character does the animation but stops in the middle of it (skills doesn’t do any damage), then the GCD resets for like 0.5 or 1 second.

I’ve read it’s due to packet loss, but I have 0 problems with other online games or my internet in general. FFXIV has been put as an exception in both my Firewall and Anti-Virus.

I don’t know if others have this issue aswell. It mainly happens in dungeons but the skill issue also happens in outdoor content for me. The rubber-banding happens aswell but for players only.

I play on Chaos (EU), Cerberus. I think it may be the huge number of players currently because it wasn’t that bad when I started.

IIRC during a certain month during a specific time every day during that month everyone will experience packet loss for about 30m-1h.

It crippled one of my raid days.