Hi DonB,
Here is an article (from 2009) for
QoS on the Linksys WRT54G. Although your router is a WRT54GS, most of the article should still apply.
For Upstream Bandwidth, you could stay with Auto, but I think most people prefer to set it manually. If going Manual, you'll need to know the current maximum
upload speed/bandwidth of your internet service. If you do not know it already, you can run a speedtest to find out. I like to use
http://speakeasy.net/speedtest/If you decide to set priority by Device, you will need the MAC address of your OBI100. This can be conveniently located here:
Status -> System Status -> WAN Status -> MACAddress ->
Alternately, if you would rather prioritize by the physical LAN port on your Linksys Router, you could select the Highest Priority for the appropriate Port Number to which your OBI100 is connected. The Application Priority adjusts network traffic priority based on the Port in use. Since the OBI100 does not use wireless, I would think you do not need to enable WMM support.
Hopefully others will add some advice too!!
pc44