* Plugable report similar problems with their dock.[1] They also power both sides while trying to pass through data.
* Similar problems reported for Anker.[2]
* And CalDigit.[3]
This may be a generic problem with USB-C middle boxes which power in both directions. Some configurations don't work, and this is tough to troubleshoot. The standards compliance test procedure for USB-C hubs [4] doesn't seem to contain this case. The test designers were still thinking "tree with computer at root" in 2015.
* Similar problems reported for Anker.[2]
* And CalDigit.[3]
This may be a generic problem with USB-C middle boxes which power in both directions. Some configurations don't work, and this is tough to troubleshoot. The standards compliance test procedure for USB-C hubs [4] doesn't seem to contain this case. The test designers were still thinking "tree with computer at root" in 2015.
[1] http://plugable.com/products/ud-ca1/ [2] http://www.macworld.com/article/3057186/macbook-accessories/... [3] http://caldigit.com/usb-3-1-usb-c-dock/faq.asp [4] http://www.usb.org/developers/compliance/usbcpd_testing/3.1_...