Severe Instance-Based Latency Spikes (Random Instances)

I am experiencing severe and inconsistent latency spikes that appear to be instance-specific rather than connection-wide. In my hideout, my ping can be stable at ~15 ms. Upon entering a map, latency may immediately spike and remain consistently above 500 ms. Returning to the hideout can sometimes keep the ping at 500+ ms or be at ~15ms, while opening a new map instance can suddenly return latency to ~15 ms.

This behavior is random and tied to individual instances. The same type of content may be perfectly fine in one instance and unplayable in another. For example, a map can run normally, but entering an Abyssal Depth within that map can cause persistent high latency. I have also experienced consistent latency spikes in endgame content such as King of the Mist, Simulacrum, Vaal Temple, and other random map instances.

Because latency can immediately improve or worsen simply by leaving and re-entering or creating a new instance, this does not appear to be general network instability on my end, but rather an issue affecting certain server instances or routing paths.

there is a much larger forum post regarding this subject. Please disregard this post ig