TomatoUSB

I have an ASUS RT-N16 with Tomato USB. I setup a WD 300 gig USB drive using the following settings:

Enable File Sharing: Yes, Authentication required
WorkGroup Name: Name
Client Codepage: Unspecified
Samba Custom Configuration: null
Auto-Share all USB Partitions: Read / Write
Options: Master Browser and WINS Server checked.

The can connect and access the drive without an issue if I am connected to an ether-net cable, however I can't even see the drive when only connected wirelessly. Is it possible to connect to the USB drive wirelessly, and if so, can anyone point me in the right direction to correct my setup.

Thanks for your time.

I should of noted that I was using Windows 7 Ultimate. After some further searching, I came across this a similar issue logged with Microsoft Technet:
http://social.technet.microsoft.com/forums/en-US/itprovistanetworking/thread/11a5e3e4-3b2b-46bf-9e94-a6ac557fc4f4

The problem is solved for me. I followed the following steps:

First start an administrator console by entering cmd into the searchbox on the start menu and then do ctrl+shift+enter instead of just enter. In the console enter the following commands to change the MTU:

netsh interface ipv4 show interfaces
Take note of the id number of the wireless interface.

netsh interface ipv4 set subinterface id mtu=1460 store=persistent