My Cloud drive lost network connection

Just purchased My Cloud 2Tb unit yesteday.  Have been knocked off the network 3 times while trying to upload 100Gb of media files.  Unit freezes up with steady blue light.  Reset button doesn’t respond with either 10 or 40 second depression.  Unplugging will reawaken the unit once it’s powered up and rebooted.  Problem seems to happen when my screen saver comes on, but I don’t think that this is the problem, since my PC doesn’t enter sleep mode and other network devices are still connected.

Tech support seems completely surprised by this this behavior, but this forum shows otherwise.  I’ll try rebooting my router and installing the latest firmware.  If the same behavior persists,  I’ll be returning this product to my point of purchase.