This message was posted on behalf of Intel Corporation
This is a known issue that has been present for a while. There is a workaround to fix it created by a user of the community, you can find it in https://communities.intel.com/thread/77945.
You could also try to use an image that did not have this issue. The last image that didn't have the issue present was the release 2.1 (version 146) which can be found in https://downloadmirror.intel.com/24910/eng/edison-image-ww18-15.zip.
I'd suggest you to either try to apply the workaround to the latest image or to use the image 146 for your project. We apologize for the issues that this might cause.
Let me know if this information helps you.