Here is what the correct firmware fixes and provides:
To ensure a safe , complete this checklist: ds-2cd1043g0-i firmware download
This is the most common error. If you see Mismatched Firmware or Broken pipe : Here is what the correct firmware fixes and
Search for your device on the network, enter the password, and select the upgrade option. enter the password
Contact Hikvision support directly or ask a certified security system installer. Never guess with firmware.