Kepware connectivity: Exception: The user identity token is not valid.(BadIdentityTokenInvalid)

[iammarco]

Hi Guys, I want to replicate your Kepware example 'client_to_kepware.py' but run into an authentication issue. I use Python 3.5 on windows and installed the dependencies cryptography, dateutil, lxml and pytz. I got Kepware KEPServerEX 6.0 V6.0.2107.0 installed on my local machine. I am using the base installation that is only the simualtion tags are available and I want to write a client reading simulation tag values. In the OPC UA configuration I enabled opc.tcp://127.0.0.1:49320 and set secutiry to None. I also removed the flag from Basic128Rsa15 and Basic256. My client is setip as follows: client = Client("opc.tcp://localhost:49320") That is the Endpoint OPC U Configuration shows me When executing connect I get below error. Can anybdoy help me on this?

Thank u for any hints!

WARNING:opcua.binary_client:ServiceFault from server received in response to ActivateSessionRequest Traceback (most recent call last): File "C:\Users\abcd\Python35-32\opcua.py", line 14, in client.connect() File "C:\Users\abcd\Python35-32\opcua\client.py", line 102, in connect self.activate_session() File "C:\Users\abcd\Python35-32\opcua\client.py", line 180, in activate_session return self.bclient.activate_session(params) File "C:\Users\abcd\Python35-32\opcua\binary_client.py", line 221, in activate_session data = self._send_request(request) File "C:\Users\abcd\Python35-32\opcua\binary_client.py", line 61, in _send_request self._check_answer(data, " in response to " + request.class.name) File "C:\Users\abcd\Python35-32\opcua\binary_client.py", line 70, in _check_answer hdr.ServiceResult.check() File "C:\Users\abcd\Python35-32\opcua\uatypes.py", line 215, in check raise Exception("{}({})".format(self.doc, self.name)) Exception: The user identity token is not valid.(BadIdentityTokenInvalid)

[ghost]

Use the real address instead of the local host. ex) client = Client("opc.tcp://xxx.xxx.xxx.xxx:49320")

[iammarco]

I also tried 127.0.0.1 what is the value that is given in the OPC UA config. but that did not change anything...tried my computers name in the network, too...

[oroulet]

Are you missing username or password?

On Thu, May 11, 2017, 11:44 iammarco notifications@github.com wrote:

I also tried 127.0.0.1 what is the value that is given but that did not change anything...tried my computers name in the network, too...

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[iammarco]

well, here i am unsure...as soon as i get's to authorization there is a gap in my knowledge. In Kepware i did not steup a user...not sure if that is even possible???I tried my windows user but i think that is not waht should be used...right? what user is required here?

[oroulet]

No idea, it really depends on how your server is setup. But you can use one of the the command lines to get supported endpoints. That should give you the answer

On Thu, May 11, 2017, 11:51 iammarco notifications@github.com wrote:

well, here i am unsure...as soon as i get's to authorization there is a gap in my knowledge. In Kepware i did not steup a user...not sure if that is even possible???I tried my windows user but i think that is not waht should be used...right? what user is required here?

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[iammarco]

Serversetup is simple...bascially I got Demo version from kepware page, installed by clicking next next next...Then i deactivated security in OPC UA settings. That's it. I meanwhile also found out there is an option in Kepware Settings for creating users. I did so but still not working. I also tried all endpoint configurations Kepserver is offering...same result...what a pitty...

[oroulet]

Several people have​ been using that server do it should work..

On Thu, May 11, 2017, 14:49 iammarco notifications@github.com wrote:

Serversetup is simple...bascially I got Demo version from kepware page, installed by clicking next next next...Then i deactivated security in OPC UA settings. That's it. I meanwhile also found out there is an option in Kepware Settings for creating users. I did so but still not working. I also tried all endpoint configurations Kepserver is offering...same result...what a pitty...

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[zerox1212]

Do you have another client that can successfully connect like UaExpert?

[iammarco]

I tried with a comercial one - SAP PCo. Here it is working. Connection can be builld

[iammarco]

folks, got myself a non-company laptop and rebuild scenario...now it is working. appears security is an issue here...still admin told me "on localhost there should not be any issue..."oh boy, a lot to learn here ;-)

[oroulet]

Do not use Windows ;-)

On Fri, May 12, 2017, 12:03 iammarco notifications@github.com wrote:

folks, got myself a non-company laptop and rebuild scenario...now it is working. appears security is an issue here...still admin told me "on localhost there should not be any issue..."oh boy, a lot to learn here ;-)

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[iammarco]

dont tell me... ;-) thanks to all for providing help