Uscis Encountered An Unknown Error Retrieving Your Data

September 25, 2016: Upset you think? If you are like me and run an IOT deployment using the IoTKit backend, it can be a bit challenging to manage your deployed devices. By navigating through a process of looking at each piece of information (the device ID, configuration JSON, configuration file) one at a time, you should be able to get back to the IoTKit code quickly. Following these steps should help you to figure out what has happened is all.


Run the following script in a clean Linux environment on your IOT device:


sudo docker-compose -f docker-compose.yml up -d


Once up, this will prompt your user interface to connect to a network adapter, and where the data is stored. These scripts assume that you have downloaded & installed the latest Iotkit with drivers from this page: https://docs.docker.com/engine/installation/iotkit/index.html.​


To select a network adapter type, we use the command:


sudo iotkit --display-network-adapters --connection-type=wlan0


We select the local loopback network adapter. Using this, you can see the device is found under IP Address 192.168.31.152.


Now, to determine the correct configuration file, you could do so by plugging the USB cable into your machine, and finding the “device properties” dialog, and changing to “Configuration” tab.


If you are as new as I am to commands, you could use the command:


$ sudo modprobe wlan_core


However, upon trying to follow this method, I might have to ask first, why does the “modprobe” fail?


For completeness sake, there are other ways to set wlan_core to the device for use in configuring a networking configuration. For instance, you could just attach it to the standard serial port of your computer (in.config file), and issue the command:


sudo dhclient wlan0


This shows you can actually configure wlan_core without hacking your computers’ networking stack.


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