Plex Server Hacked?

Hi, running Pi-Hole and OpenDNS Im getting several requests from my Plex Server:
Aug 27 20:21:57 dnsmasq[8120]: reply 192-168-1-21.29f7b6744f174dcf8403bd2b77dbcaf4.plex.direct is 146.112.61.109

The IP however is blocked by OpenDNS due to malware… any ideas?

Could be a DNS rebinding issue.

Hi thanks
any ways to check? Any why malware IP?

Sorry was saying why an malware IP… very strange… Ive shutdown external access but it keeps coming every 10 mins…