I found a topic
with the very simmilar problems. I run modpack Direwolf20 1.19.2 version from FTB with dedicated server with my friends and i am the only who have this type of crashes. It has been through login process and after 5-6 crashes i can connect. And randombly it could crash me in game but mostly when i am tp'ing using Nether portals etc. I already setted up all privileges for javaw in firewall, flushed dns, reset network settings and etc. Changed java version to from FAQ too. Here's some logs from client side
https://gnomebot.dev/paste/1158502890168664194
https://gnomebot.dev/paste/1158187264657063946