Connection problem when connection is active

If a network connection problem occurs while you are connected to a remote system (such as Micro Focus z/Server), an error message similar to the one below is displayed:

TSUIN0105 An exception occured during save processing.. A backup was made at:
C:\Users\..\AppData\Local\Temp\BACKUP1265445630293877498BBANK10P_1.cbl
Reason:
MFDAS01: Mainframe access problem. Reason: A communication error was detected, refer to MFAERROR.LOG.

The connection problem occurred while saving a file in the editor. A local backup of the file was saved at the location specified in the error message, this is to avoid information loss.