The channel 'tcp' is not registered with remoting services

[John]

'The channel 'tcp' is not registered with remoting services'

In the last few months I have been getting this random error message from my
web application every week to two weeks. The solution to fix it is to
'iisreset'.

Does anyone know if this is a bug between IIS and .Net 2.0 or ?

Thanks

Code :
channel = new TcpClientChannel();

ChannelServices.RegisterChannel(channel);

myXPipe= (XPipe)RemotingServices.Connect(typeof(GCCBL.XPipe),

"tcp://" + ConfigurationSettings.AppSettings["Server"].ToString() + ":" +
ConfigurationSettings.AppSettings["Port"].ToString() + "/GCCBLListener");