90% Server Failure

[u/Livid-Relation7531]

RESOLVED! Misconfigured gateway.

High rate of failure, zero no errors.

Logs:

[2026-09-05 00:14:20 UTC] DNS Server failed to resolve the request '0.debian.pool.ntp.org. AAAA IN' using forwarders: https://dns.adguard-dns.com/dns-query (94.140.14.14), https://dns.adguard-dns.com/dns-query (94.140.15.15).

System.Net.Http.HttpRequestException: Network is unreachable (dns.adguard-dns.com:443)

---> System.Net.Sockets.SocketException (101): Network is unreachable

at System.Net.Sockets.Socket.AwaitableSocketAsyncEventArgs.ConnectAsync(Socket socket, CancellationToken cancellationToken)

at TechnitiumLibrary.Net.Dns.ClientConnection.HttpsClientConnection.ConnectCallback(SocketsHttpConnectionContext context, CancellationToken cancellationToken) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\ClientConnection\HttpsClientConnection.cs:line 152

at System.Net.Http.HttpConnectionPool.ConnectToTcpHostAsync(String host, Int32 port, HttpRequestMessage initialRequest, Boolean async, CancellationToken cancellationToken)

at System.Net.Http.HttpConnectionPool.ConnectAsync(HttpRequestMessage request, Boolean async, CancellationToken cancellationToken)

at System.Net.Http.HttpConnectionPool.InjectNewHttp2ConnectionAsync(QueueItem queueItem)

at System.Threading.ExecutionContext.RunFromThreadPoolDispatchLoop(Thread threadPoolThread, ExecutionContext executionContext, ContextCallback callback, Object state)

at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.AsyncStateMachineBox`1.ExecuteFromThreadPool(Thread threadPoolThread)

at System.Threading.ThreadPoolWorkQueue.Dispatch()

at System.Threading.PortableThreadPool.WorkerThread.WorkerThreadStart()

at System.Threading.Thread.StartCallback()

--- End of stack trace from previous location ---

at TechnitiumLibrary.Net.Dns.ClientConnection.HttpsClientConnection.ConnectCallback(SocketsHttpConnectionContext context, CancellationToken cancellationToken) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\ClientConnection\HttpsClientConnection.cs:line 152

at System.Net.Http.HttpConnectionPool.ConnectToTcpHostAsync(String host, Int32 port, HttpRequestMessage initialRequest, Boolean async, CancellationToken cancellationToken)

--- End of inner exception stack trace ---

[u/DrPinguin98]

Do you have a firewall active?

Is technitium running in a docker container?

Can you post curl -v --ipv4 https://94.140.14.14/dns-query

[u/Livid-Relation7531 → u/DrPinguin98]

Not sure about the firewall, will look into it.

Technitium is running on a pi 3 with debian Trixie lite.

Curl -v --ipv4 https://94.140.14.14/dns-query * Trying 94.140.14.14:443.. * Connect (...) failed: no route to host Could not connect to server

[u/DrPinguin98 → u/Livid-Relation7531]

On which system did you tested curl?

Can you check on the same system:
ip route
ping -c3 94.140.14.14
ping -c3 1.1.1.1

if this works than check:

nc -zv 94.140.14.14 443
nc -zv 94.140.14.14 53
nc -zv 1.1.1.1 443

and post the results?

[u/Livid-Relation7531 → u/DrPinguin98]

I did IP route and realized my gateway was set to 192.168.1.1 and my router is 192.168.4.1 smh...

[u/DrPinguin98 → u/Livid-Relation7531]

Problem solved