If you’ve upgraded Sage 50 to, for example Sage 50 2015 on the server, and you are receiving errors when attempting to activate Sage 50 on your server. There are a few things to check.

Make sure your firewall is open. Or Disable the firewall for this test.

If that is not the case. Then we will need to rename the Clientinfo.xml file.

Renaming Clientinfo.xml

• Make sure everyone is out of Sage 50.
• Make sure Sage 50 is closed on the server.
• Navigate to the data path, for Example: D:\Sage\Peachtree\Company\Clientinfo.xml
• Replace D:\ with the path to your Peachtree Company folder
• Rename the Clientinfo.xml to ClientinfoBAK.xml
• Run Sage 50 on the server.

Activation should now work.

If that does not work then please contact your vendor and confirm that your key is active.