connectivity.cloudflareclient.com ERR: http 522
I had a strange problem today. I can't connect to Cloudflare's connectity check endpoint, This causes me to not connect to Cloudflare WARP.
root@MyDebian:~# curl -Lv connectivity.cloudflareclient.com
* Trying [2606:4700:7::a29f:8a41]:80...
* Trying 162.159.138.65:80...
* Immediate connect fail for 162.159.138.65: Network is unreachable
* Trying 162.159.137.65:80...
* Immediate connect fail for 162.159.137.65: Network is unreachable
^C
root@MyDebian:~# curl -Lv -6 connectivity.cloudflareclient.com
* Trying [2606:4700:7::a29f:8941]:80...
* Connected to connectivity.cloudflareclient.com (2606:4700:7::a29f:8941) port 80 (#0)
> GET / HTTP/1.1
> Host: connectivity.cloudflareclient.com
> User-Agent: curl/7.88.1
> Accept: */*
>
< HTTP/1.1 522
< Date: Mon, 15 Sep 2025 22:25:36 GMT
< Content-Type: text/plain; charset=UTF-8
< Content-Length: 15
< Connection: keep-alive
< X-Frame-Options: SAMEORIGIN
< Referrer-Policy: same-origin
< Cache-Control: private, max-age=0, no-store, no-cache, must-revalidate, post-check=0, pre-check=0
< Expires: Thu, 01 Jan 1970 00:00:01 GMT
< Server: cloudflare
< CF-RAY: 97fb8a79bcd4e2e2-HKG
<
* Connection #0 to host connectivity.cloudflareclient.com left intact
error code: 522
root@MyDebian:~# warp-cli status
Status update: Unable
Reason: No Networkroot@MyDebian:~# curl -Lv connectivity.cloudflareclient.com
* Trying [2606:4700:7::a29f:8a41]:80...
* Trying 162.159.138.65:80...
* Immediate connect fail for 162.159.138.65: Network is unreachable
* Trying 162.159.137.65:80...
* Immediate connect fail for 162.159.137.65: Network is unreachable
^C
root@MyDebian:~# curl -Lv -6 connectivity.cloudflareclient.com
* Trying [2606:4700:7::a29f:8941]:80...
* Connected to connectivity.cloudflareclient.com (2606:4700:7::a29f:8941) port 80 (#0)
> GET / HTTP/1.1
> Host: connectivity.cloudflareclient.com
> User-Agent: curl/7.88.1
> Accept: */*
>
< HTTP/1.1 522
< Date: Mon, 15 Sep 2025 22:25:36 GMT
< Content-Type: text/plain; charset=UTF-8
< Content-Length: 15
< Connection: keep-alive
< X-Frame-Options: SAMEORIGIN
< Referrer-Policy: same-origin
< Cache-Control: private, max-age=0, no-store, no-cache, must-revalidate, post-check=0, pre-check=0
< Expires: Thu, 01 Jan 1970 00:00:01 GMT
< Server: cloudflare
< CF-RAY: 97fb8a79bcd4e2e2-HKG
<
* Connection #0 to host connectivity.cloudflareclient.com left intact
error code: 522
root@MyDebian:~# warp-cli status
Status update: Unable
Reason: No Network