There's a problem with the connection to the Blizzard servers.
Troubleshooting steps to resolve error message in World of Warcraft.
How to read and analyze WinMTR data in order to track down a potential connection issue.
Troubleshooting for Authenticator Error - Please Connect to a Network: Your device is currently not connected to a network. Please try again later.
Troubleshooting steps if you can't claim a gift
Playing Blizzard games on more than one platform.
What to do if you can't claim your Destiny 2 key
Troubleshooting for when an in-game shop screen is all black or blue
Your installation or update cannot continue because your network connection is unavailable. It will automatically resume when your connection is reestablished.
What to do if you can't play Destiny 2 after buying it