Usually, users might come across QuickBooks Error H101 when attempting to switch between single to multi-user mode. Numerous reasons might strike this error, such as incorrect file configuration and when your system cannot communicate with the server. If you get the error H101 with more than one workstation, it indicates that you are set to host multi-user mode on the workstations apart from the server. To turn off multi-user access on the system, follow the steps below.
Launch QB where you get the QB error H101 and then move to File menu > Utilities.
If you get the Host Multi-User Access option, you must not click it and proceed to the next workstation.
Later, click the Stop Hosting Multi-User Access option and then repeat these same steps on all the workstations where you get this error.
If you still want any clarifications regarding QuickBooks Error H101, consult the experts by dialing the helpline number (855)-856–0053