High latency when entering SOME areas

So the main problem I have is when entering some areas the latency jumps up and down so much that the game "pauses" sound and movement. Doesn't matter what area it is, it can happen with any. Sometimes it ends up in a disconenct when it pumps it up to 5k or something. The issue is not MY internet. It's YOUR servers. The fix is making a new instance of the same area. If it happens in a map it's pretty much a write off of that map and have to just load another map.
Been this way from the start off the league.


System specs that are unrelevant for this issue:

CPU: i5-10400
RAM: 32GB
GPU: 3060 12GB
SSD: m.2
Internet: 200Mbit/s

Have same issue. Have to go out and back into area then latency drops back to 30ms. Glad its not only me having this issue

It's so fun when I can't avoid bosses skills or cast on death effects since I can't move.

I've been encountering similar problems, where some instances will be straight up unplayable or having abnormally high ping fluctuations. Recently the symptoms relaxed to maps with 300ms instead of 100ms latency (as reported by F1 performance graphs), and the instance will stutter a lot making normal gameplay very annoying.

By checking logs, every "broken" instance show up as instance.pathofexile.com:xxxx in the logs, while every normal instance will show up as numbers.

I've found no mentioning of this phenomenon in the forums. Do your logs show similar behaviors?

No in my logs every instance has its own id and seed. Just got into silo map that had had latency fluctuate between 50 and 400. And only that instance. Latency is was ok in hideout and previous maps.
My logs also don't have the line "instance.pathofexile.com:xxxx" like you have