Checkout the thread on Microsoft Community forum.
On Windows 8.1 RT and 8.1 on a laptop, the XT912_Verizon Droid Razr keeps showing up under Phone in my network and the Texas Instruments TI_Connectivity_Module also keep showing up. Also, sometimes a Samsung Galaxy shows up, all with various, but consistent mac addresses in the Win 8.1 (RT) File explorer. These devices are NOT showing up as available wireless networks that I can connect to. This us under Network on File Explorer. I have added mac address filtering to my router, changed my wifi security key, which is a strong 20 random characters, and changed the user name and password for my router. These devices do not show up as being wirelessly connected to the router and do not show up as dhcp clients on my router, from the router admin interface. This tells me that, if these devices are connecting to my network, they are not doing it wirelessly, since they are not in the mac address list and not listed as wireless connections in the router admin interface. If I show properties of, particularly the XT912, it "disappears" from the network window on the Win 8.1 (RT) explorer. The router is a motorola sbg6580. I connected through a cable to my router, turned off all other devices, disabled wireless on both my router and my laptop, disabled WPS, listed only allowed MAC addresses in the MAC address filtering table and changed my network password, router user name and password to random character/number strings. I haven't seen the devices since.
So far, three other users have reported on this thread as having the same problem. The other users who have posted on the Microsoft Community forum thread continue to have the problem. The strange thing is the same device keeps showing up, XT912_Verizon, for all users.
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