Remote exceptions are not rethrown

[yallie]

Describe the bug
When a remote server throws an exception, the client should receive it.

To Reproduce
Steps to reproduce the behavior:

• Throw an Exception in the service hosted by RemotingServer
• Try to catch the exception on the RemotingClient side
• TimeoutException is thrown instead

Expected behavior
Exception thrown in the service should be serialized, passed on to the client, deserialized and rethrown on the client side.

Additional notes
Looks like synchronization issue like missing WaitEvent.Set call somewhere on the error path.