failed to sufficiently increase receive buffer size (was: 208 kiB, wanted: 2048 kiB, got: 416 kiB). See https://github.com/quic-go/quic-go/wiki/UDP-Buffer-Sizes for details.

[mark-baumann]

I have added the Domain to cloudflare and authorized successfully it.
If I go to my Website the tunnel does not work.

I get following error message in the homeassistant logs:
failed to sufficiently increase receive buffer size (was: 208 kiB, wanted: 2048 kiB, got: 416 kiB). See https://github.com/quic-go/quic-go/wiki/UDP-Buffer-Sizes for details.

after that i get those informations:
2024-02-17T20:30:09Z INF Registered tunnel connection connIndex=0 connection=49c3d3d5-77a3-4f27-979b-415b75815133 event=0 ip=198.41.192.67 location=fra08 protocol=quic 2024-02-17T20:30:09Z INF Registered tunnel connection connIndex=1 connection=eefb7d36-0e15-4592-8e86-8715db929b31 event=0 ip=198.41.200.113 location=fra06 protocol=quic 2024-02-17T20:30:10Z INF Registered tunnel connection connIndex=2 connection=8f915324-84c4-4916-9a5e-7367304629de event=0 ip=198.41.192.57 location=fra11 protocol=quic 2024-02-17T20:30:11Z INF Registered tunnel connection connIndex=3 connection=4fba1ad1-2f7b-46c0-b211-4c0ff5ed95ff event=0 ip=198.41.200.23 location=fra07 protocol=quic

Is this the error why it does not work? How can I fix this?

[mark-baumann]

Ok I got the error fixed by doing what is described at the link ... I close the issue.

Suggestion: Maybe write it in red or something that other user see, that it is an error.