You may end up with QuickBooks error H505 when the user tries to switch to the multi-user mode. This error code blocks the multi-user connection to the server. It appears with an error message stating “QuickBooks has faced a problem and needs to close. Sorry for any inconvenience caused”. Being one of the common errors, there may be multiple causes that can result in the occurrence of QuickBooks Error code H505. Below we have listed a few:
Incorrect hosting configuration of the device.
Due to a damaged .ND file, QB is unable to access the company file stored on the network.
Another reason can be incorrect DNS settings
For any further assistance regarding the troubleshooting of QuickBooks Error Code H505, go through this article.