bizdude: Do TCP & UDP separately.
I think this might be more helpful to you then; see
To continue files downlding (click on link) & see all the off-shoot links for xtra tips & skills you can pick up on.
nycshoegal: As far as you've told me independently, you run cable with LW 4.8.1
That's helpful but not quite as much info as I hoped for to try to ascertain the reason for your problem.
At present it looks like your isp provider (Cox), is the reason for your problem. It looks like they are using a filter on your LW. Call them up & tell them to free up their unrequested restriction of your service! Often the people at the front desk don't know what's going on but ask to speak to one of their techs. Searches with continual zero results stinks of isp intervention!