Ports, applications, accessibility. Maybe your other device is used a lot less, you haven't messed with any ports or have any applications that require forwarding. Honestly, very weird issue, I would need to investigate the files. Can you scan your PC With Farbar MiniToolBox and Malwarebytes JRT? Post the logs that you get.
JoshRoss, 2017-09-06 13:16:38 (UTC)
MiniToolBox by Farbar Version...