Why is Destiny 2 broken on PC? (Frequent disconnects with network-related error codes)
Random disconnects mid-activity with a named error code, more often during raids or high-population activities like Iron Banner. Most named network error codes point to the connection between your client and Bungie's matchmaking/activity servers being interrupted, often due to local network instability rather than Bungie's servers. Fix: Use a wired ethernet connection — Destiny 2's activity servers are sensitive to the packet loss spikes Wi-Fi is prone to, more than many other games.