I have one computer that can't connect to the Vault Server. It use to work fine and I am not sure what happened. I have gone to the extreme of uninstalling and re-installing and still nothing. I am in the same project as when it was working. I have checked the Application Options Content Center and made sure that the Access Options is set to Autodesk Vault Server.
When I click on Vault Server, everything is grayed out except "Log In" and "Connection Options". If I click on either of them the dialog box goes away and nothing happens. No error dialogs nothing. If I go to the project amd click on the Configure Content Center Libraries button it just disappears and nothing happens. Not sure what else to do.
Sorry, I have more questions than answers....
Do you have all of the latest updates installed for both Inventor and Vault? Which versions are you using? You may want to look for service packs on:
Does the vault client work on this machine? Does disabling/enabling the vault add-in change the behavior? Is it possible create a new vault project file from scratch and get the add-in to function normally?