Windows 7: Vizo XWR100 and other routers have USELESS USB!

Below outlines the problem that I am having, and it seems to be universal - all these new wireless routers, like mine - Vizio XWR100 "CLAIM" this wonderful USB port allows shared use - BUT there is one MAJOR catch - the manufacturers of the routers have NOT worked out a way to WRITE TO THE HARD DRIVE THAT YOU CONNECT TO THE USB PORT - THUS MAKING THE USB PORT VIRTUALLY USELESS! That's right, you can only READ from the USB HD that is connected! Is that crap or what???

If we have to PRE-COPY (copy ahead-of-time) any files to the USB *before* we can share them, THAT IS CRAP! What that means is we have to DISCONNECT the USB HD from the Wireless router, AND THEN copy movies or pictures onto it; and THEN *RE-CONNECT* the USB HD to the router - before being able to use/see anything - bottom line, these ports are virtually useless, because they are
READ-ONLY - this MUST BE FIXED VIA FIRMWARE UPGRADES OR SOME OTHER METHOD - THIS MAKES THE USB PORT VIRTUALLY *** USELESS ***

If I cannot WRITE to the USB HD, from EVERY COMPUTER IN MY HOUSE, over the wireless network, then it is USELESS! *NO* it is NOT a firewall issue! It is "access denied" when trying to 'write' to the USB drive, even when I took the USB drive to the PC and formatted it NTFS and set EVERYONE FULL + ANONYMOUS FULL + NETWORK FULL + NETWORK DEVICE FULL access ! USELESS!

STOP - BEFORE YOU MAKE A COMMENT ABOUT "CHECKING ROUTER SETTINGS"
I have been through EVERY SINGLE ROUTER SETTING [*AND* have been through their platry help PDF document], and the only setting (via the GUI - there's no access to full root-level command-line) - the only setting is to "browse" (READ) the shared folder, which shows up as a shared named: \\192.168.1.1\Default0 (aka \\vizio.home\Default0) - When you look at permissions, it shows (vizio\root) as owning it, so obviously the Vizio XWR100 is Linux-based, and is possibly sharing the USB drive via Samba-based sharing and/or NFS-based sharing, but in READ-ONLY MODE! What a CROCK! And there is ZERO information in their documentation about any method for WRITING to the drive - they just intentionally leave that out, because they KNOW IT DOES *NOT* WORK!

Oh, and YES, I tried EXPLICIT CREDENTIALS - I changed the password for the router, and then Mapped - like net use * \\192.168.1.1\Default0 /user:vizio pwd
(where pwd is the password I set) - and it MADE NO DIFFERENCE!

Now, I am guessing their is a "maintenance/admin" mode of some kind, where you can use some specific port and login, via putty or some method, to a Linux shell and then change this as needed; or alternatively, they could provide a firmware upgrade that fixes this - but I doubt that will happen, unless we bombard them!

Now, same question goes for the Cisco/Linksys E3000 router - it has a USB, does anybody know if it allows WRITING to the USB HD??? Again, this is a HUGE OVERSIGHT - A HUGE ISSUE THAT MAKES THE USB PORT VIRTUALLY USELESS ON THE VIZIO XWR100!!! +other routers - see below (User in Vista forum same issue):

I am having a problem accessing folders that I made on a newly
purchased external HD set up on my home network via a wireless router.
I set up the HD (a 500GB drive in an USB enclosure) and formatted it
using the Computer Management tools in Vista. It has 1 primary, active
NTFS partition. With the drive plugged directly into my PC by USB, I
was able to format the drive and create two folders at it's root;
'Archive' and 'Restore'. I want to use these folders to hold copies of
my files and back ups of my laptops drive using the Vista Back Up and
Restore tools. I have the HD connected by USB into my ASUS WL-500W
wireless router. I can see the drive (named 'Portable') and the
folders in the Network view of Windows Explorer. However, when I try
and create or copy folders on the HD over the network I get errors
such as "you need permission to perform this action". When I check the
Properties/Security tab of the folders the 'Everyone' user doesn't
have the proper permissions, so I assume this is the problem, but I'm
not sure how to set this. Everything works fine when connected
directly to my PC by USB, but not over the network and I would like to
be able to leave the drive connected to the network so that it's
easier to schedule back ups and gather/deposit/share files with other
users on the network.

[SO, THIS GUY ABOVE (from Vista Forum) HAS THE SAME ISSUE back in 2008!]

Thanks for any advice, hacks, help, etc. I do NOT want to use modified firmware on this XWR100 at this time, but I don't mind if someone can find a HACK to allow this USB DEVICE SHARING to be fixed, and made USEFUL!

In order to have a USB drive attached to a Vizio router to be read/write it has to be formatted FAT or FAT32. NTFS drives will be set to read-only