Built into the TC8715D there exists such a device and it's main chipset is made by Broadcom which explain the name.
But, in order to access this, now wirelessly connected, mass storage device there needs to be a intermediary device that handles the connection, searches said HD for files and transfers to PC, takes incoming files from PC and writes them to the HHD, etc. you could connect a Hard Drive via USB to your shiny new router and use it as a Network Attached Storage (NAS) device. A quick IP scan later and the mysterious BRCM-LVG device is gone. I went through the setting and found my DLNA and Digital Media Server and USB Settings were all on by default. Not being one of these "everyone's out to get me" conspiracy nuts I thought I would do some research so here's what I've found.
It concerned me so thought I would try a quick Google search and found this forum.
Really hoping so.This shared BRCM-LVG showed up on my Mac when we got a new ISP "Time Warner Cable" and they installed a Tricolor TC8715D router/modem. A friend of mine who works at charter says it should be done doing this (upgrades) in my area (Waupun Wisconsin) by August 1st. We decided to do what the tech said and get a second modem on the account and so far it's been smooth except for recently when our home phone, cable and internet have been out, for hours on end without any notice due to upgrades to gigabit in my area & they are going all digital in my area too, they did in my city earlier this week.
So in the end we ended up getting two modems one in the basement for me and my IT network lab & one for my parents who use the internet for normal use, keep in mind we tried all solutions out there like using two routers and even going as far as using power line which was an expensive fail, since the charter tech saw we had three fuse boxes / CBs so it was 3 different power lines going to 3 individual levels in our home. You can using Powerline Adapters or Moca, unless your house is on separate power supplies, my house won't work with either Power line but would with Moca but charter came and told me to take off the Moca since it was interfering. Sat Jul 28 12:41:40 2018 Notice (6) WiFi Interface set to Channel 11 (Side-Band Channel:7) - Reason:GUI Sat Jul 28 12:42:07 2018 Notice (6) WiFi Interface set to Channel 11 (Side-Band Channel:N/A) - Reason:INTERFERENCE Sat Jul 28 12:42:08 2018 Notice (6) WiFi Interface set to Channel 149 (Side-Band Channel:N/A) - Reason:INTERFERENCE Sat Jul 28 12:57:19 2018 Notice (6) WiFi Interface set to Channel 100 (Side-Band Channel:N/A) - Reason:INTERFERENCE Constant WiFi drop and lag spikes in games.nktging on my end has been changed or moved.