Micro usb loose/disconnecting topic

After about a month with 2 Nexus 6's and 5 different usb cables, I've started to notice the micro usb ports and or cables are becoming loose and disconnecting often, charging starts and stops repeatedly. The same cables properly charge other devices, albeit the connection still feel loose. I've even purchased new cables but that only helped for the first few times connecting.

Anyone else having similar issues?