Here’s a breakdown of why it happens and what you can actually do about it.
He opened YouTube on his console. It loaded instantly. He opened a web browser. Fine. The connection was stable. So, it wasn't his ISP. It was a communication breakdown between his game client and the Activision servers. Here’s a breakdown of why it happens and
By trying out these potential solutions and workarounds, players may be able to resolve the "Call of Duty Modern Warfare 3 menu content not available" error and get back to enjoying the game. He opened a web browser
Modern Warfare 3 is split into multiple "packs" (Campaign, Multiplayer, Warzone). If even one small "compatibility pack" is missing, the menu may lock. So, it wasn't his ISP
: Digital versions may show a "lock" symbol if the console cannot verify ownership. Platform-Specific Fixes For PlayStation (PS4/PS5)