The error in MakeMKV occurs when the software cannot reach its update servers to download "Hashed Keys" (HK) required for decrypting certain Blu-ray or 4K/UHD discs . This typically happens because the disc is too new for your local database and the network request to fetch the new keys was blocked. Common Causes
| Problem | Immediate Fix | |---------|----------------| | No internet | Connect online | | Firewall block | Allow MakeMKV in firewall | | Auto download disabled | Enable in Preferences → General | | Old version | Update to latest | | New disc | Wait or manually add hashedkeys | | Server down | Try again later or use VPN | makemkv automatic hk downloading is disabled or failed
Reviewers and users on the MakeMKV Forum suggest the following fixes: Automatic HK download disabled or failed - www.makemkv.com "Automatic HK downloading is disabled or failed" The