Here are some possible causes of QuickBooks Error 80070057:
● Damaged Network Data (.ND) files are one of the major reasons that trigger error 80070057 in QuickBooks. These files configure multi-user access to QuickBooks Company Files. It allows programs to identify the database server they will use. When users attempt to relocate or delete.ND files from the host or server system, the files become unreadable.
● Incorrectly configured System Security programs and Firewall might cause communication issues between QuickBooks Desktop and QuickBooks Database Server. In this case, QuickBooks Error code 80070057 is quite likely.
● When a QuickBooks user attempts to open/access a QuickBooks company file through a shared folder, it also occurs. Only the server or host computer can access or open QuickBooks server files.
● The antivirus blocks unusual ports when data is sent between the PCs with BitDefender. Use the database service on the host machine to execute QuickBooks Desktop 2018 and 2017. This database service uses ports 56728(2018), 56727(2017), and 56726(2016). Bitdefender, by default, bans these ports.