u/namorblack

Client "connects", but no data transfer.

Hello!

On the server: "wg show"

interface: wg0

- public key: <key here>

- private key: <hidden>

- listening port: 51820

peer: <key>

- preshared key: (hidden)

- allowed ips: 10.66.66.2/32, fd42:42:42::2/128

Client config imported into Wireguard client:

[Interface]

PrivateKey = <key here>

Address = 10.66.66.2/32,fd42:42:42::2/128

DNS = myISP_IP1, myISP_IP2

[Peer]

PublicKey = <key here>

PresharedKey = <key here>

Endpoint = mydomainname:51820

AllowedIPs = 0.0.0.0/0,::/0

----Domain name resolves to a correct public IP and port 51820 is forwarded (UDP).

I can connect, but on the client there is 0 bytes received and a few KB transmited. There's no internet while im connected: I cant ping, nor can I resolve domain names.

Client: CachyOS (via 5G network to simulate external attempt at connecting)

Server: Debian 13

I've been at it for weeks now, and I'm at my wits end. I've been through countless youtube tutorials, portainer docker images and compose files. I ended up trying to setup a dedicated Debian VM with only Wireguard on it and thats where I am now. The issue is always the same: I can "connect", there is no data traffic and I lack the tools to troubleshoot it.

I appreciate all the help and patience.

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u/namorblack — 6 days ago