• Compatibility mode is selected
• Disconnected mapped network drive
• Mapped network drive is empty
• Drive not mapped properly
• Loss of connectivity to the server or host machine
• .INI file pointing to the incorrect data path
• Incorrect security settings on the server or host machine
• Different version of program installed on workstation than on server or host machine
• Domain Name Service (DNS) resolution problems
• Data path files or folder moved or deleted

1. Right-click the Sage 50 icon and select Properties.
2. Click the Compatibility tab.
3. Un-check the Run this program in compatibility mode field.
4. Click Apply, OK.
5. Verify you can open Sage 50 without error.

Solution 2: Disconnected network drive

1. Click the Windows Start button, and in the Search field type File Explorer and press Enter.
2. In the File Explorer, try to open the drive referenced in the error message.
   • If the drive isn’t present, re-map it using the same drive letter
   • If asked for a username and password, log in and check the box Remember My Credentials. Then click OK
     • To turn off this feature, click the link located in Addition Information
   • If the drive opens but is empty, reboot the PC
   • If you receive an error, consult your I.T. professional to resolve the network error
3. If the drive is present and opens without error, continue to the next Solution.

Solution 3: Incorrect data path in Configuration File

1. Select Start and then All Programs.
2. Select Sage 50 20XX and then Sage 50 Resources and Help.
3. Click Technical Support Utilities and then select Sage Advisor Diagnostic Tool.
4. Click Agree on the License Agreement.
5. Click the box in the Run column beside Company Location Check and the Product INI files Check.
6. Click Run Selected Tests.
7. The Result Log box shows the data path Sage is using and the path of any recent companies.
8. Make note of the path for any recently opened companies​​​​​​​.
9. Close the Sage Advisor Diagnostic Tool​​​​​​​.
10. Browse to the ini file.
11. Double-click on the ini file to open it​​​​​​​.
12. Change the directory in the DATAPATH= line to reflect the correct path​​​​​​​.
13. Click File and select Save​​​​​​​.
14. Close the .INI file​​​​​​​.
15. Open Sage 50 to test​​​​​​​.

Solution 4: Verify security settings on the server or host machine

1. Verify your data file permissions are correct.
2. Make sure you can browse to the data path location on the server or computer hosting the data. If necessary, disable password-protected sharing.

Solution 5: Verify installed version on both server and workstation

• To check the version of the program, select Help, About Sage 50. Check the version of the program on both the server and the workstation
• If the versions don’t match, update the computer that has the older version installed