Im trying to access a remote wcf function in a service from the test application (Client), while executing it says service expired.
I tried
1) disabling firewall,
2) checked with SSl certificates, but didn't helped me
Could anyone help me why im unable to call this wcf function running on remote machine.
First steps: enable logging.
See
https://learn.microsoft.com/en-us/dotnet/framework/wcf/diagnostics/configuring-message-logging
And:
https://learn.microsoft.com/en-us/dotnet/framework/wcf/diagnostics/tracing/recommended-settings-for-tracing-and-message-logging
To look at the logs, use this: https://learn.microsoft.com/en-us/dotnet/framework/wcf/diagnostics/viewing-message-logs
If the logs do not make sense, post back here.
Related
I am trying to create wcf service and want to host on windows service.and install that service on windows.
so what I did I add wcf service library then built and run. after that its does successfully.
but when I create anther WCF appilcation so shows me this error= System.ServiceModel.AddressAlreadyInUseException.
SO how can I solve this issues please help to resolve this issue.
I install InstallUtil.exe but process not start on windows.
I want to host my WCF service on window and consume that service on my client application
First, I suggest you use WCF service application Template to create WCF service.
The error mainly indicates that the http address is already in use, we could change the port number and try it again.
At last, we had better use administrator account to install/run the windows service since the system layer driver (http.sys) manages the machine port. We could also use the below command to reverse the URL for the account runs the service.
https://learn.microsoft.com/en-us/dotnet/framework/wcf/feature-details/configuring-http-and-https
https://learn.microsoft.com/en-us/windows/desktop/http/add-urlacl
Feel free to let me know if there is anything I can help with.
We created WCF Service and hosted in IIS in a specific machine.
WCF Client is hosted in some other machine which is there in the same LAN.
We were able invoke it. Suddently it started giving error. It is throwing some Timeout exception.
Please tell me the possible scenarios to get this kind of errors. If the WCF Client and WCF Service both are in the same machine, then it is not throwing any error.
Can you ping the service from the machine where the client is set-up?
Are there any firewalls causing this problem? But you said you were originally able to invoke it? are there any event logs to draw from?
You can try set up WCF loging
I just implemented a simple WCF server using net.tcp.
First, I use 127.0.0.1 as server address and client able to connect the WCF service.
Everything is Ok. But when I try to use the internal IP 192.x.x.x I get an error:
No connection could be made because the target machine actively refused it
Any idea what may cause this?
Best Wishes
PS: I disabled auth on WCF. Even turn off firewall all...Not worked...
Well, I got this error message when I forgot to install necessary components. see link Configuring WCF Service with netTcpBinding
(summary of steps)...
Go to "Programs and Features" (usually in control panel)
Go to "Turn Windows features on or off"
(assuming VS2012) Go to ".NET Framework 4.5 Advanced Services"->"WCF Services"
Enable "TCP Activation"
Do you use 192.x.x.x on both client and server? I remember seeing an issue a while back in which for TCP the client and server names needed to match (something related to one of the message properties), so if you define the service with "localhost" and the client with <machine name> there would be a problem.
The physical client and service addresses can differ if the logical address is the same and the server endpoint has been configured with a "listenUri" and the client behaviour is configured to use a <clientVia> address. In our case, this is required in for our proxy/firewall configuration. In effect, the client calls the firewall and the server listens locally for a forwarded request.
For an IIS-hosted service, check the following:
The Application pool is started and looks correct (.NET 4 etc/security)
For NET.TCP, ensure the "Allowed Protocols" in the Web Site/Application (via advanced settings) are configured correctly: e.g. http,net.tcp
For a non-IIS hosted service, you may need to configure a Namespace Reservation (URLACL). http://msdn.microsoft.com/en-us/library/ms733768.aspx
Also ensure the appropriate Windows Services are running, e.g. Net.Tcp listener.
If you're running from within visual studio in debug mode, ensure your solution port numbers match. I have seen several instances where I had Properties>Web>Auto-Assign Port - selected and the endpoint from, in this case my silverlight app, didn't match the port auto generated. I usually change the port to 1318 in my .web.
Today I found out that this error will also show up if you have a circular reference in your WCF Service Class. I had a method that was calling itself infinitely and causing this error message, which led me here.
So if none of the other suggestions work, check your code to see if you're doing any recursive functionality and make sure you're not caught in an infinite loop.
I resolved this issue by either commenting this setting in the application configuration:
<defaultProxy>
<proxy bypassonlocal="False" usesystemdefault="True" proxyaddress="http://127.0.0.1:8888" />
</defaultProxy>
or, running Fiddler which would take the WCF call at 127.0.0.1 and then forward it.
The complete scenario is, I encountered the same issue with WCF calls made to one of the service. The calls would fail with top level error message "There was no endpoint listening at http://LinuxIP:Port/...", and service trace viewer log showing inner exception to be "No connection could be made because the target machine actively refused it 127.0.0.1:8888
".
The reason was that I had put this configuration in my application to capture the outgoing traffic in Fiddler. If this configuration is in place then the Fiddler needs to be running for the WCF calls to make it to the intended destination. If Fiddler is not running this error will be there. Comment this setting in such scenarios, and the WCF call will go to the destination.
I am consuming a web service in .NET application with WCF client.
The Endpoint's address of the service is over port 4338, and it is over HTTPS, secured with WS-Security standard.
So the address is something like :
https://[servername]:4338/[servicename]/
I was not able to communicate to the service with just running the application.
it gave me the following error :
Could not connect to [servername]:4338
TCP error code 10060: A connection
attempt failed because the connected
party did not properly respond after a
period of time, or established
connection failed because connected
host has failed to respond
[servername]:4338
But when I run Fiddler to investigate the http communication, the application start to work, and I will be able to communicate to the service.
As well, I want to add that I have a different service on the same web server that hosts the first service, and that second service's address is hosted on port 8080, and I am able to communicate with it with WCF client (without running Fiddler).
So, I googled and I found that it might be related to the proxy settings. Do you know what the problem is, and how can I solve it?
Thanks
Fiddler acts as an Internet proxy server. In general, any symptom of the form: "it works when I use Fiddler" means "it works when there's a (different) proxy server".
Check your proxy server settings. In particular, as empi suggested, try it in a browser. If it works there, it could be due to the fact that the browser has the proxy settings configured, and that you do not have them configured for WCF.
If you have proxy set in Internet Explorer, it may cause the problem. What happens when you open https://[servername]:4338/[servicename]/ in Internet Explorer?
Thanks empi for the reply.
I found the answer.
Actually in our company we have a proxy settings through "Automatic configuration script"
and depends on the web sites we are targeting internally, the script will point us to the proper proxy.
So, from the script I got the proper proxy address.
and in my .NET application I added this code
WebRequest.DefaultWebProxy = new WebProxy("http://xx.xx.xx.xx:8080");
and that fixed the problem
So WCF client was not detecting the setting of the automatic script.
and this is the reason it worked when I run Fiddler, because Fiddler listen to the http communication, and send it again through the settings.
I have a WCF service that i've been able to communicate with fine while it's hosted locally.
I have it deployed to a web server in IIS now, and I can get the wsdl file without error by navigating to http://site.com:8000/service/servicename.svc?wsdl
in trying to test this, i've created a console app and was able to successfully add a service reference to this. But when I try to run a Get() method on the service reference, it just hangs with no response.
How can I begin to debug this?
Thanks!
When you have a service that works in dev but not in IIS, it is often due to a problem with the WCF configuration:
Is the configuration in place (since you can add service reference it probably is)
Is the protocol you are using available. The configuration you are using must match what is turned on. For example are you using nettcpip binding without WAS.