“You haven’t connected in the last 30 days. Start the game while online to see any login agreements"

Hey there,

Other than a technical issue with your PC or connection, this error can also show up if your Battle.net account does not have the license for Diablo II: Resurrected (meaning you have not purchased the game).

I looked at the account you’re posting from but it does not have a Diablo II: Resurrected purchase on it.

If you used a different Battle.net account to purchase and install the game, please log out and log back in with the correct account that has the purchase on it. You can view your Battle.net purchases in your transaction history.