Computer one is 2600. Computer two is Force.
No new folders have been created on force by anyone but wife whose account on force has administrator privileges or me whose account on force has administrator privileges (wife and I also have administrator privileges accounts on 2600). I am unsure if the shares on force are “default shares” or “hidden shares,” but they do not read $ or E$.
When I click network in “my computer” on force, I can see the 2600 computer icon. Then, when I click on 2600 computer icon, I can see the drives in 2600. When I click on any drive in 2600, I get the “no access” error.
Here is the actual problem. A batch file on force backs up my wife's research folder (located on force) every night at midnight, was written about a year ago, and has worked flawlessly since its inception. What the batch file does: creates a directory on a USB external hard disk attached to force and names that directory the current date, then copies contents of the research folder to the current date folder on force that it just created. Then the batch file creates a directory on a USB external hard disk attached to the 2600 and names that directory the current date, then copies contents of the research folder to the current date folder on the 2600 it just created. The following morning I check the network to see if the following exist: (1) the original files in the research folder, (2) a complete copy of the research files in the current date folder on the external hard disk attached to force, and (3) a complete copy of the research files in the current date folder on the external hard disk attached to 2600. The backup procedure as described here worked perfectly until 12/19/18 when we stopped getting the backup to 2600 though we continue to get the backup to force.
Troubleshooting led me to find the force could not access the disks on the 2600 (as mentioned in my original post), and I am guessing that if force cannot access 2600 it cannot make the necessary backup to the external hard disk attached to the 2600.
In the past, we have experienced backups ceasing when the external hard disks on either computer filled so I deleted files as needed from either external hard disk to make room for the ongoing backups. Since we are now experiencing a problem with an inability to make backups to one of the external hard disks, I have now deleted all files from the external hard disk on 2600 but did not need to delete any files from the external hard disk on force as it was currently only half full.
However, we still do not get a backup on the external hard disk attached to the 2600 which I surmise is because of the no access error dialog.
Any helpful suggestions appreciated.