Anyone can come to the Virginia Tech campus and access online resources from within the library. All current employees, emeritus retirees, and currently enrolled students should have Access to Library Resources Off Campus, simply by starting on the library's website.
You can check your current affiliation by logging into OneCampus, search for the Manage Accounts category, and then click on Profile. Scroll to the bottom to see a list of your current affiliations. You'll need to see VT-ACTIVE-MEMBER or VT-RETIREE listed under Affiliations to be able to have Off Campus Access to Library Resources.
There is nothing locally the library staff can do to provide remote access if your affiliation does not include that entitlement. We do not have the power to change your affiliation with the university.
Faculty and staff, including visiting scholars and adjuncts, without a VT-ACTIVE-MEMBER status should consult with the person in their department responsible for human resources in order to update their affiliation in the university's Banner system (again, the library has no ability to update your status in Banner).
An explanation of university affiliations is available online.