This is an absolute nightmare from haoxiuyun's blog

This is D2R Items an absolute nightmare, to be honest. I am sorry for the engineers who have the appearance of months of retroactive fix in the front of them. There's a school thought that says, well, Blizzard should have seen this coming and planned for it.

But that's also fundamentally part of the risk you take with remasters. These games were written back in a period when information and multiplayer didn't have the acclaim or accessibility that is available today. Moreover, it's not easy to determine if some of the older infrastructure is scalable in the way we think it might.

It can happen all the way to the point at which it all collapses in a flaming heap.Diablo 2: Resurrected's servers are crashing in the wake of "modern gamer behaviour"Diablo II Resurrected has been released with widespread ongoing server issues. 

Today a Blizzard community manager offered some insight into the nature of the issue - and it's part of a code that's been around for 20 years, and also some more modern gamer behavior.

Resurrected's server problems over the last couple of months have been getting more severe. This culminated in several instances of server downtimes in the past week, in which the entire outage was caused

Blizzard say, by an increase in traffic. "This was a first-of-its-kind event that our servers had never experienced at all, in fact, even before launch," reads the post on buy diablo 2 resurrected items the Blizzard forums.