Connectivity issue in Validator Full nodes of Aptos private network

[cclchd-soundaryaayyappan]

Discord user ID

soundarya_75162

Describe your question in detail.

I am trying to build private aptos network with 4 validator nodes with vfn each in a docker environment. Validators are configured and the connection is happening between the peers. Whereas with validator full nodes, I am getting below issue,

{"level":"INFO","source":{"package":"aptos_network","file":"network/framework/src/connectivity_manager/mod.rs:1101"},"thread_name":"network-Pub-0","hostname":"3618462fd124","timestamp":"2025-09-22T12:48:42.494068Z","message":"[full_node,Public,39f88709] Failed to connect to peer: 4632b015 at address: /dns/privnet-sep19-v1_vfn3_1/tcp/6381/noise-ik/0x8a3db47d0f4b896bca4159ee4e98185dd5e240ba4727cd1289dc6b8ee180d773/handshake/0; error: Transport error: noise client: error reading server handshake response message, server probably rejected our handshake message: unexpected end of file","data":{"error":"Transport error: noise client: error reading server handshake response message, server probably rejected our handshake message: unexpected end of file","network_address":"/dns/privnet-sep19-v1_vfn3_1/tcp/6381/noise-ik/0x8a3db47d0f4b896bca4159ee4e98185dd5e240ba4727cd1289dc6b8ee180d773/handshake/0","network_context":{"role":"full_node","network_id":"Public","peer_id":"39f88709b2dc39eb7bf090d3915a81c9bb40689b5bdb44b73699140e7345c024"},"remote_peer":"0x4632b015dbaf40ef71e611543d56a1c136af38375e4bb9787b47faf7912adb8d"}}
{"level":"WARN","source":{"package":"aptos_network","file":"network/framework/src/peer_manager/transport.rs:311"},"thread_name":"network-vfn-1","hostname":"3618462fd124","timestamp":"2025-09-22T12:48:42.551976Z","message":"[full_node,vfn,d340e92e] Inbound connection from /ip4/172.16.1.8/tcp/58560 failed to upgrade after 0.000 secs: noise server: client 88e0a362: client is expecting us to have a different public key. Expected: 9818895c62d1be18fc439029f8e6af957f89aec4c3ef1ee01f90aeec6d9bfb51, Actual: d340e92ef3960855c42839ed09bf38888523d573eec1f74bb7d70c0e819ba251","data":{"error":"noise server: client 88e0a362: client is expecting us to have a different public key. Expected: 9818895c62d1be18fc439029f8e6af957f89aec4c3ef1ee01f90aeec6d9bfb51, Actual: d340e92ef3960855c42839ed09bf38888523d573eec1f74bb7d70c0e819ba251","network_address":"/ip4/172.16.1.8/tcp/58560","network_context":{"role":"full_node","network_id":"vfn","peer_id":"d340e92ef3960855c42839ed09bf38888523d573eec1f74bb7d70c0e819ba251"}}}
{"level":"WARN","source":{"package":"aptos_data_client","file":"state-sync/aptos-data-client/src/poller.rs:296"},"thread_name":"data-client-0","hostname":"3618462fd124","timestamp":"2025-09-22T12:48:43.052845Z","data":{"error":"NoConnectedPeers(\"No available peers found!\")","event":"aggregate_summary","message":"Unable to update global summary cache!","name":"data_summary_poller"}}

Can anyone please guide me on what's wrong? Thanks in Advance!

What error, if any, are you getting?

{"level":"INFO","source":{"package":"aptos_network","file":"network/framework/src/connectivity_manager/mod.rs:1101"},"thread_name":"network-Pub-0","hostname":"3618462fd124","timestamp":"2025-09-22T12:48:42.494068Z","message":"[full_node,Public,39f88709] Failed to connect to peer: 4632b015 at address: /dns/privnet-sep19-v1_vfn3_1/tcp/6381/noise-ik/0x8a3db47d0f4b896bca4159ee4e98185dd5e240ba4727cd1289dc6b8ee180d773/handshake/0; error: Transport error: noise client: error reading server handshake response message, server probably rejected our handshake message: unexpected end of file","data":{"error":"Transport error: noise client: error reading server handshake response message, server probably rejected our handshake message: unexpected end of file","network_address":"/dns/privnet-sep19-v1_vfn3_1/tcp/6381/noise-ik/0x8a3db47d0f4b896bca4159ee4e98185dd5e240ba4727cd1289dc6b8ee180d773/handshake/0","network_context":{"role":"full_node","network_id":"Public","peer_id":"39f88709b2dc39eb7bf090d3915a81c9bb40689b5bdb44b73699140e7345c024"},"remote_peer":"0x4632b015dbaf40ef71e611543d56a1c136af38375e4bb9787b47faf7912adb8d"}}
{"level":"WARN","source":{"package":"aptos_network","file":"network/framework/src/peer_manager/transport.rs:311"},"thread_name":"network-vfn-1","hostname":"3618462fd124","timestamp":"2025-09-22T12:48:42.551976Z","message":"[full_node,vfn,d340e92e] Inbound connection from /ip4/172.16.1.8/tcp/58560 failed to upgrade after 0.000 secs: noise server: client 88e0a362: client is expecting us to have a different public key. Expected: 9818895c62d1be18fc439029f8e6af957f89aec4c3ef1ee01f90aeec6d9bfb51, Actual: d340e92ef3960855c42839ed09bf38888523d573eec1f74bb7d70c0e819ba251","data":{"error":"noise server: client 88e0a362: client is expecting us to have a different public key. Expected: 9818895c62d1be18fc439029f8e6af957f89aec4c3ef1ee01f90aeec6d9bfb51, Actual: d340e92ef3960855c42839ed09bf38888523d573eec1f74bb7d70c0e819ba251","network_address":"/ip4/172.16.1.8/tcp/58560","network_context":{"role":"full_node","network_id":"vfn","peer_id":"d340e92ef3960855c42839ed09bf38888523d573eec1f74bb7d70c0e819ba251"}}}
{"level":"WARN","source":{"package":"aptos_data_client","file":"state-sync/aptos-data-client/src/poller.rs:296"},"thread_name":"data-client-0","hostname":"3618462fd124","timestamp":"2025-09-22T12:48:43.052845Z","data":{"error":"NoConnectedPeers("No available peers found!")","event":"aggregate_summary","message":"Unable to update global summary cache!","name":"data_summary_poller"}}

What have you tried or looked at? Or how can we reproduce the error?

No response

Which operating system are you using?

Linux (Ubuntu, Fedora, Windows WSL, etc.)

Which SDK or tool are you using? (if any)

Aptos CLI

Describe your environment or tooling in detail

No response

[JoshLind]

noise server: client 88e0a362: client is expecting us to have a different public key.

The errors suggest your validator and/or VFN configuration keys are invalid. You should probably check the identity information you're giving to the nodes in your node config files.

Note: it might just be easiest to run a local multi-node network using this guide (https://aptos.dev/network/nodes/localnet/run-a-multinode-localnet), and then working backwards to see what's wrong with your current setup. If you run the multi-node network using the guide, you can inspect the node config files, to see what things should look like 😄

[cclchd-soundaryaayyappan]

Thank you @JoshLind. I'll follow the mentioned guide.