Disconnections - many, repeatable

Launcher: GGG
Server: Frankfurt
League: Necropolis
MTX: RF Celestial, Annihilator Set + Portals
Driver: DX12
RAM: 32
CPU: i5-12600k
GPU: RTX4080S
Res: 5120x1440 (scales down to ~3100x1440)
Screen: Windowed
Connection: LAN, no yt in background, Im the only user of internet

Game runs smooth without any lag.
Constant 38 latency and 230 fps.
Everything is fine until death.
Then:
Ressurect at checkpoint.
Buffs up.
Enter portal.
Turn on RF.
After few seconds, always less than 10, latency starts to grow up to 20k and then disconnects.
It happens every 2-3 deaths, but sometimes it happens every death.

It also happens without dying, while standing in hideout and unveiling items, but very seldom (once in 2-3 hours)

After reinstallation of the game - problem persists.

None other games or software have similar issues, it happens only in poe.

I have the same issue,
game runs very smooth , 23ms latency and 120FPS and then sudden disconnect.
WHen i log back in portals are gone , so is ingame loot .

Yup, same issues here. though it only happens on my RF chieftain for some reason. My DD necro is fine and so is my Minion Necro. For some reason on RF it keeps doing this, in combat, in town or in hideout, just randomly. I have noticed that when it happens, just before the DC, the Drive indicator on the F1 screen starts going 0% -> 100% -> 0% -> 100% over and over again until DC.

Edit: Also no issues with FPS drops or anything like that.