The cause of the Xbox Network servers going down is not mentioned in the provided information. Microsoft acknowledged the issue and said they were investigating it, but no specific cause was given.
The Xbox Network server issues began on July 2, causing difficulties for users in connecting to games and services on the platform. The problems were widespread and took Microsoft hours to resolve.
Microsoft took several hours to resolve the server issues that affected Xbox Live on July 2. The issues were first reported around 2:07 PM ET, and it was not until 8:49 PM ET that Microsoft announced that the issues had been sufficiently addressed1.