Calls to a web service using DPWS over SSL generate an exception everytime they are called

NETMF & Gadgeteer
1

• We are using .NETMF 4.1
• GHIElectronics.NETMF 4.17
• DPWS_V_4_1_7706_0
• WsHttp configured web services

Calls over SSL generate the following exceptions. Normally, this is innocuous but sometimes causes hard faults which freezes the application:

The thread ‘’ (0x12) has exited with code 0 (0x0).
#### Exception System.Net.Sockets.SocketException - CLR_E_FAIL (17) ####
#### Message:
#### Microsoft.SPOT.Net.SocketNative::poll [IP: 0000] ####
#### System.Net.Sockets.Socket::Poll [IP: 0011] ####
#### System.Net.Sockets.Socket::Accept [IP: 0017] ####
#### System.Net.HttpListener::AcceptThreadFunc [IP: 0020] ####
#### SocketException ErrorCode = -1728053248
#### SocketException ErrorCode = -1728053248
#### SocketException ErrorCode = -1728053248
The thread ‘’ (0x11) has exited with code 0 (0x0).

2

Not enough information to give you any useful answer. Please provide a simple test app demonstrating this problem.

3

Hi Gus,

Okay, I now have a hosted web service that you can safely exercise the code. Where can I upload the source code or should I send it directly to you?

I have removed the using (idiomatic construct) around the client proxy instantiation to reduce the number of exceptions.

Either way, in a short period of time the system will start failing and will no longer be able to communicate with the network

I have verified the behavior of this code both on our custom board and on the GHI Development Board.

Let me know if you need anything additional from me…

Thanks,
Glenn

4

Upload it to Codeshare.

5

Okay, it is now up there…

The title of it is TestDPWSandSSL

Thanks,
Glenn

6

Nice! Thank you!

7

Any updates Gus? I noticed you have not responded since I added more detail around the issue.