Error when connecting to relay server "The MLAPI Relay detected a CRC mismatch."

Question

Error when connecting to relay server "The MLAPI Relay detected a CRC mismatch."

Budtom opened this issue 5 years ago · comments

I'm getting the below error when connecting from unity to the relay running on a amazon EC2 instance:

[MLAPI.Relay] The MLAPI Relay detected a CRC mismatch. This could be due to the maxClients or other connectionConfig settings not being the same UnityEngine.Debug:LogError(Object) MLAPI.Transports.UNET.RelayTransport:BaseReceive(NetworkEventType, Int32, Int32&, Int32&, Byte[], Int32, Int32&, Byte&) (at C:/projects/mlapi/MLAPI/Transports/UNET/RelayTransport.cs:399) MLAPI.Transports.UNET.RelayTransport:Receive(Int32&, Int32&, Int32&, Byte[], Int32, Int32&, Byte&) (at C:/projects/mlapi/MLAPI/Transports/UNET/RelayTransport.cs:284) MLAPI.Transports.UNET.UnetTransport:PollEvent(UInt64&, String&, ArraySegment1&, Single&) (at C:/projects/mlapi/MLAPI/Transports/UNET/UnetTransport.cs:92)
MLAPI.NetworkingManager:Update() (at C:/projects/mlapi/MLAPI/Core/NetworkingManager.cs:642`

It's unclear what the correct settings for the Networking Manager script and Unet Transport should be in order to satisfy the requirement of matching up with the config.json settings of the relay.

Albin Corén · Answer 1 · Fri Sep 27 2019 02:16:12 GMT+0800 (China Standard Time)

Fixed in a220e83

kkingfung · Answer 2 · Fri May 21 2021 15:32:49 GMT+0800 (China Standard Time)

I have the same issue these days.
"The MLAPI Relay detected a CRC mismatch."

[MLAPI.Relay] The MLAPI Relay detected a CRC mismatch. This could be due to the maxClients or other connectionConfig settings not being the same
UnityEngine.Debug:LogError(Object)
MLAPI.Transports.UNET.RelayTransport:BaseReceive(NetworkEventType, Int32, Int32&, Int32&, Byte[], Int32, Int32&, Byte&) (at C:/projects/mlapi/MLAPI/Transports/UNET/RelayTransport.cs:420)
MLAPI.Transports.UNET.RelayTransport:Receive(Int32&, Int32&, Int32&, Byte[], Int32, Int32&, Byte&) (at C:/projects/mlapi/MLAPI/Transports/UNET/RelayTransport.cs:287)
MLAPI.Transports.UNET.UnetTransport:PollEvent(UInt64&, String&, ArraySegment`1&, Single&) (at C:/projects/mlapi/MLAPI/Transports/UNET/UnetTransport.cs:93)
MLAPI.NetworkingManager:Update() (at C:/projects/mlapi/MLAPI/Core/NetworkingManager.cs:650)

The Fixed UNET configuration loading did not solve mine.

Albin Corén · Answer 3 · Fri May 21 2021 16:12:07 GMT+0800 (China Standard Time)

I have the same issue these days.
"The MLAPI Relay detected a CRC mismatch."

[MLAPI.Relay] The MLAPI Relay detected a CRC mismatch. This could be due to the maxClients or other connectionConfig settings not being the same
UnityEngine.Debug:LogError(Object)
MLAPI.Transports.UNET.RelayTransport:BaseReceive(NetworkEventType, Int32, Int32&, Int32&, Byte[], Int32, Int32&, Byte&) (at C:/projects/mlapi/MLAPI/Transports/UNET/RelayTransport.cs:420)
MLAPI.Transports.UNET.RelayTransport:Receive(Int32&, Int32&, Int32&, Byte[], Int32, Int32&, Byte&) (at C:/projects/mlapi/MLAPI/Transports/UNET/RelayTransport.cs:287)
MLAPI.Transports.UNET.UnetTransport:PollEvent(UInt64&, String&, ArraySegment`1&, Single&) (at C:/projects/mlapi/MLAPI/Transports/UNET/UnetTransport.cs:93)
MLAPI.NetworkingManager:Update() (at C:/projects/mlapi/MLAPI/Core/NetworkingManager.cs:650)

The Fixed UNET configuration loading did not solve mine.

Could you please post your Relay config?

kkingfung · Answer 4 · Fri May 21 2021 16:19:26 GMT+0800 (China Standard Time)

I am new to Networking.
I am sorry if I misunderstood. Do you mean Relay config.cs?

using MLAPI.Relay.Transports;
using Newtonsoft.Json;
using Newtonsoft.Json.Converters;

namespace MLAPI.Relay
{
public class RelayConfig
{
[JsonConverter(typeof(StringEnumConverter))]
public TransportType Transport = TransportType.Ruffles;
public object TransportConfig;
public ushort BufferSize = 1024 * 8;
public bool EnableRuntimeMetaLogging = true;
public int BandwidthGracePrediodLength = 60;
public int GracePeriodBandwidthLimit = 4000;
public int BandwidthLimit = 2000;
public bool AllowTemporaryAlloc = true;
public int MaxTemporaryAlloc = 1024 * 64;
public ushort ListenPort = 8888;
public uint TicksPerSecond = 64;
}

public enum TransportType
{
    Ruffles,
    UNET
}

}

Albin Corén · Answer 5 · Fri May 21 2021 17:41:51 GMT+0800 (China Standard Time)

I am new to Networking.
I am sorry if I misunderstood. Do you mean Relay config.cs?

using MLAPI.Relay.Transports;
using Newtonsoft.Json;
using Newtonsoft.Json.Converters;

namespace MLAPI.Relay
{
public class RelayConfig
{
[JsonConverter(typeof(StringEnumConverter))]
public TransportType Transport = TransportType.Ruffles;
public object TransportConfig;
public ushort BufferSize = 1024 * 8;
public bool EnableRuntimeMetaLogging = true;
public int BandwidthGracePrediodLength = 60;
public int GracePeriodBandwidthLimit = 4000;
public int BandwidthLimit = 2000;
public bool AllowTemporaryAlloc = true;
public int MaxTemporaryAlloc = 1024 * 64;
public ushort ListenPort = 8888;
public uint TicksPerSecond = 64;
}
public enum TransportType
{
    Ruffles,
    UNET
}
}

When you start your relay it will create a config json file in the directory where the executable lives. I need that and also a screenshot of your UnetTransport in the inspector in Unity.

kkingfung · Answer 6 · Fri May 21 2021 17:52:47 GMT+0800 (China Standard Time)

Sorry for misunderstanding. Here is my config file (followed by the screenshot):

{
"Transport": "UNET",
"TransportConfig": {
"Channels": [
"ReliableFragmentedSequenced",
"ReliableSequenced",
"UnreliableSequenced",
"Unreliable",
"Unreliable",
"Reliable",
"UnreliableSequenced",
"ReliableSequenced",
"ReliableSequenced",
"UnreliableSequenced"
],
"MaxConnections": 100,
"ConnectionConfig": {
"PacketSize": 1440,
"FragmentSize": 500,
"ResendTimeout": 1200,
"DisconnectTimeout": 2000,
"ConnectTimeout": 2000,
"MinUpdateTimeout": 10,
"PingTimeout": 500,
"ReducedPingTimeout": 100,
"AllCostTimeout": 20,
"NetworkDropThreshold": 5,
"OverflowDropThreshold": 5,
"MaxConnectionAttempt": 10,
"AckDelay": 33,
"SendDelay": 10,
"MaxCombinedReliableMessageSize": 100,
"MaxCombinedReliableMessageCount": 10,
"MaxSentMessageQueueSize": 128,
"AcksType": 1,
"InitialBandwidth": 0,
"BandwidthPeakFactor": 2.0,
"WebSocketReceiveBufferMaxSize": 0,
"UdpSocketReceiveBufferMaxSize": 0,
"SSLCertFilePath": null,
"SSLPrivateKeyFilePath": null,
"SSLCAFilePath": null,
"ChannelCount": 0,
"SharedOrderChannelCount": 0,
"Channels": []
},
"GlobalConfig": {
"ThreadAwakeTimeout": 1,
"ReactorModel": 0,
"ReactorMaximumReceivedMessages": 1024,
"ReactorMaximumSentMessages": 1024,
"MaxPacketSize": 2000,
"MaxHosts": 16,
"ThreadPoolSize": 1,
"MinTimerTimeout": 1,
"MaxTimerTimeout": 12000,
"MinNetSimulatorTimeout": 1,
"MaxNetSimulatorTimeout": 12000,
"NetworkEventAvailable": null,
"ConnectionReadyForSend": null
}
},
"BufferSize": 8192,
"EnableRuntimeMetaLogging": true,
"BandwidthGracePrediodLength": 120,
"GracePeriodBandwidthLimit": -1,
"BandwidthLimit": -1,
"AllowTemporaryAlloc": true,
"MaxTemporaryAlloc": 16384,
"ListenPort": 8888,
"TicksPerSecond": 64
}

Albin Corén · Answer 7 · Fri May 21 2021 17:57:34 GMT+0800 (China Standard Time)

What version of the MLAPI?

kkingfung · Answer 8 · Fri May 21 2021 18:02:11 GMT+0800 (China Standard Time)

I am using MLAPI v12.1.7.
I am not sure whether the version of Unity matters.
For some reasons, I have using Unity LTS 2018.
Please let me know if it is not supported.

Albin Corén · Answer 9 · Fri May 21 2021 18:17:04 GMT+0800 (China Standard Time)

I am using MLAPI v12.1.7.
I am not sure whether the version of Unity matters.
For some reasons, I have using Unity LTS 2018.
Please let me know if it is not supported.

Thats the problem. The latest version is designed for MLAPI 0.1.0, if you want to use it for the older 12.1.7 you need to revert this commit: 2270b08

kkingfung · Answer 10 · Fri May 21 2021 19:05:17 GMT+0800 (China Standard Time)

Although Unity LTS 2018 I am using may not be supported, I will try to upgrade MLAPI to 0.1.0.

For the v12.1.7:
The only changes according to the commit are the codes from line 69 to 78.
I have tried both the one before that commit and the one after.
Both can not make 12.1.7 work.

Thanks for your advice.