TACC VPN Maintenance Friday June 16 2023 by: Mark BrueschkePublished: June 15, 2023 TACC's VPN will be undergoing maintenance from 5:00 PM to 7:00 PM (CDT) on Friday, June 16 2023. Access to all VPN accessed TACC systems will be unavailable during this time. Jobs will continue to run, but users will have no VPN access to TACC services and systems until the maintenance is complete.