Error code 404056 and 404004 with sync Google Drive in Cloud Sync Posted February 12, 2019 · Report reply I've updated to Windows Desktop Version 6.0.4 (281) on Windows 7 PC. Android Version on my mobile is 126.96.36.199. PC is linked to Internet via Proxy. After update to new desktop version I was asked to reconnect to sync on my PC, I reconnected to G-Drive via IE browser successfully. Afterwards I received the error message 404056 on desktop app. So I first checked the missing Proxy link and inserted it for connction to Internet again and started a new try to reconnect. This time with a new error message 404004. Can you please assist?