Discord.Net: [Bug]: Operation timeout with creation of 6+ shards

Check The Docs

• I double checked the docs and couldn’t find any useful information.

Verify Issue Source

• I verified the issue was caused by Discord.Net.

Check your intents

• I double checked that I have the required intents.

Description

Note: Please view edit history to see the original purpose of this issue.

If you create a sharded client with 6 or more shards, at around the 6th shard, all shards are prevented from running. The bot will continue to receive dispatches but will be unable to actually process the events (debug logging notes the dispatches but handlers are not being invoked).

This may relate to one of my old issues: #2126

Version

3.11.0

Working Version

No response

Logs

[2023-08-01T03:43:27.3327Z][0029][][KVEX-WIN-234][bot][ERROR] DiscordInternal-EXCEPTION-Shard #6:
Error Type: System.TimeoutException
Error Detail: The operation has timed out.
Inner Exception:
Exception Stack Trace:
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Discord.ConnectionManager.<WaitAsync>d__34.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Discord.WebSocket.DiscordSocketClient.<OnConnectingAsync>d__118.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Discord.ConnectionManager.<ConnectAsync>d__31.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at Discord.ConnectionManager.<>c__DisplayClass29_0.<<StartAsync>b__0>d.MoveNext()
Exception Source: mscorlib
Exception TargetSite: Void Throw()
Exception Data: System.Collections.ListDictionaryInternal

Sample

Instantiation

var client = new DiscordShardedClient(
	new DiscordSocketConfig
	{
		GatewayIntents =
			GatewayIntents.GuildMessages
			| GatewayIntents.DirectMessages
			| GatewayIntents.Guilds
			| GatewayIntents.MessageContent,
		LogGatewayIntentWarnings = false,
		TotalShards = 10,
		LogLevel = LogSeverity.Debug,
	}
)

Packages

N/A