Value cannot be null launcher error

[Beethoven]

Value cannot be null.
Parameter name: stream

I am running Windows 7.

I tried Mirthgar's suggestion

Open up the folder C:\Windows\System32\Drivers\Etc and in there look for a file named "Hosts". Right-click on it and choose "Open With" and choose "Notepad" from the list presented.

Once it opens in notepad look in your file for:

206.16.13.87 gls.ddo.com

Or:

206.16.13.82 gls.ddo.com

And add a # in front of both (examples below)

# 206.16.13.87 gls.ddo.com
# 206.16.13.82 gls.ddo.com

Didn't work. Next I downloaded DDO again and used the Repair setting (DnD setup). It re-installed the game. Did not fix it.

Finally I tried completely uninstalling DDO and re-installing it. Did not fix it either.

So at this point I am at a loss.

[Dulcimerist]

Someone had just fixed this identical problem today by unplugging their internet router and cable modem for 15 seconds, and then plugging them back in.