Huge packet loss

Epic games launcher and Unreal Engine make my connection (Received packet only) laggy.
I’ve more than 50% of packet loss.

That means I have to try to upload 15 times my mod to get a chance of a success.
The rest of the time I have:

Upload workshop item failed, failed build workshop depot

My connection is fine, thank you.

Any idea of the bug?

Epic has nothing to do with the upload, nor does the devkit for that matter. That’s all steam.
That being said, I haven’t had any issues uploading for quite some time so I’d say check your connection…


Well. I can record a video to explain better my problem.

I got exact same probleme. epic launcher make my packet loss spike up to 50%.