Issue
Getting error 300 during a dataLoader run.
Cause
Sometimes the vault connection gets closed after 30 minutes. This is due to a vault setting that automatically logs you out after 30 minutes.
Solution
The best solution is to go to your vault configuration located at one of the following paths:
for Vault 2020 and earlier:
“C:\Program Files\Autodesk\ADMS Professional {VERSION}\Server\Web\Services\Web.config”
for Vault 2021 and newer:
"C:\Program Files\Autodesk\Vault Server {VERSION}\Server\Web\Services\web.config"
Open the file "web.config" with any editor and increase the time for "longCommand"
<timeouts connection="120" defaultCommand="360" longCommand="1800" />
longCommand contains the time in seconds. (1800s = 30min).
See Also
for more information please see the documentation from Autodesk on changing this value: