Aggregator failed to establish callback for device, not able connect to Thingworx composer

[newieKek]

Hello, 

I had already read and tried the thread " Trouble when trying to connect OPC Aggregator to ThingWorx Composer"

before writing. 

in the OPC aggregator, I had configured

HOST: 127.0.0.1

Port: 80

/Thingworx/WS

application key from thingworx expiry in 2020-10-21.

I did a testing, if I am using the OPC client from the aggregator and the communication is ok, I can read/write the value of the device. 

When I do a discover in the Industrial connection, I am able to see the tags from the device, and able to bind the tags from the devices to the thing. 

BUT, the connection seems to be down always, and when I check the log. it show unable to establish callback for device in the OPC aggregator. 

At the Thingworx, the Thing show "connected" but the bind data is showing "?".

I am not sure where is I should check now, can anyone give me any hint, I will go try it out.

Thank you in advance.

Newbie kek

ps: let me know what additional info is required.

[posipova]

Could you please share your logs from the filesystem? one from opc aggregator and also from ThingworxStorage/logs folder?

This may be helpful if you haven't reviewed it yet https://www.ptc.com/en/support/article?n=CS302299

[newieKek · Accepted solution]

Thank  you Posipova, 

The issue is resolved. The cause of the issue is the permission and rights for the DCOM. 

Thank you for looking into it. 

Best regards

Newbie Kek