UNET Setting up a new channel and subsequently message fragmentation

Hello, Trying to send a large byte array from Client to Server and was immediately told it was too large and that the channel (I was using channel 0) does not support message segmentation. So I was looking into adding a new channel of type "Reliable Fragmented".

So, I started by simply adding a channel to the default config like this:

 int Channel;
 NetworkClient NetClient = new NetworkClient ();
 Channel = NetworkClient.hostTopology.DefaultConfig.AddChannel (QosType.ReliableFragmented);
 NetClient.SendByChannel (100, NetMsg, Channel);

When I attempted to Send like this I received the following errors:

 channelid < connection -> config -> MaxChannels ();

 Invalid channelID (2) for connection (1)

At that point I figured maybe it is not working because I am setting this channel up after connecting? So I did this:

 int Channel;
 NetworkClient NetClient = new NetworkClient ();
 ConnectionConfig Config = new ConnectionConfig ()
 Config.addChannel (QosType.Reliable);
 Config.addChannel (QosType.Unreliable);
 Channel = Config.AddChannel (Qos.RelaibleFragmented);
 HostTopology Toplogy = new HostTopology  (Config, 10000);
 NetClient.Configure (Topology);
 NetClient.Connect (serverIP, serverPort);
 NetClient.SendByChannel  (100, NetMsg, Channel);

Error:

 CRCmismatch

Any advice? What are the best practices steps in order to set up a custom channel that allows for message fragmentation?

Thanks, Sean