Are you 100% sure that it carries PACN?
It’s important you’re sure, because the number of providers carrying Pac-12 Network is...well...not great. In fact, that’s always been the knock against the Network and has been a sore spot for years among Pac-12 fans.
The good news
You may already have PACN and not know it. The Pac-12 Network has a helpful webpage to let you check.