Users getting ERR QUIC PROTOCOL ERROR

We are using Tunnel to proxy our services. However in past few days users few users are constantly getting ERR_QUIC_PROTOCOL_ERROR and they are unable to access our services. We are investigation the issue and we have assumption this issue caused by ISP of the users.

Also we want to highlight that if we disable QUIC in cloudflare the tunnels is not going to work anymore for all users.

We want to add additional information we noticed from our investigation. It’s most likely this issue exists on k8s since our deployment is on k8s.

Our deployment based on provided example from the
official github repo

Also we have seen that this issue reported constantly in the official tunnel github repo.

issue 1067

issue 510

is there any good news about this?

our users are inconsistently experiencing this same issue in the past 5 days.

Hello, we are facing the same issue that affects a lot of clients this week. But It works once we disable the proxy.

Достаточно отключить TLS 1.3

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