Diablo II Resurrected has been updated to version 1.07 today by Activision Blizzard. You can find out the complete patch notes for this update from here.
This patch was released for PC first followed by an update on consoles today. It deals with the server issues that are being faced in the game and appears to resolve some of the network connectivity problems. You can get a look at the patch notes below, or see them on the official website.
Diablo II Resurrected Update 1.07 Patch Notes
- Fixed an issue where exiting the login queue into offline mode early could cause a black loading screen to appear after the player enters offline gameplay