Plex keeps buffering video even though it's played on localhost web player

[m_dzhigarov_gmail_com]

Well actually, as you can see on the screenshot - the web browser URL is 127.0.0.1:32400, which basically means it’s not even going through the network or using any DNS - it’s all local to the Plex Media Server.

This is why I’m a bit confused with this error