@Chielus
Yeah, sorry about the lack of information. I am playing with the same internet, same connection as last time I played (around 6 months ago), only thing that changed is I swapped to more powerful laptop (Lenovo Legion 5 15ACH6H, just in case it might be usefull).
- I am running windows 10 home edition, 64 bit, version 21H2
- I am connected via WiFi
- Fresh install of WoW via ascension launcher
- Haven't experienced any issues with internet in games or any streaming media (speedtest.net shows around 31 ms, 45 Mbps download and 10 Mbps upload on evenings when the internet is the slowest)