Blocked communication between hetzner and marketplace api server (both ways)

Hi,

With Forge I created 2 hetzner servers (CX22 and CAX21). On both I have the same app/script - store with communication to the local marketplace api and with CAX21 everything is ok but at CX22 i'm getting timeout from curl:

GuzzleHttp\Exception\ConnectException: cURL error 28: Failed to connect to erli.pl port 443 after 10002 ms: Timeout was reached (see https://curl.haxx.se/libcurl/c/libcurl-errors.html) for https://sandbox.erli.dev/svc/shop-api/products/1217 in /home/forge/myperfectday.shop/vendor/guzzlehttp/guzzle/src/Handler/CurlFactory.php:275

curl https://sandbox.erli.dev/asflhlasfhlkfhsaklhfsa -v
> * Host sandbox.erli.dev:443 was resolved.
> * IPv6: (none)
> * IPv4: 34.107.80.34
> *   Trying 34.107.80.34:443...
> * connect to 34.107.80.34 port 443 from 5.75.243.19 port 37886 failed: Connection timed out
> * Failed to connect to sandbox.erli.dev port 443 after 136404 ms: Couldn't connect to server
> * Closing connection curl: (28) Failed to connect to sandbox.erli.dev port 443 after 136404 ms: Couldn't connect to server

I already contacted with marketplace and hetzner support and hetzner says that "i'm on my own with this". Marketplace support says that they don't have any block or sth and there is something with my server that blocks it. I know I get a new server but I don't know if this is random for hetzner server and maybe I will get the same result again or if this will happen in the future on "working server".

Maybe there is someone with experience with their servers and know something about that?