Multisite: This webpage has a redirect loop

I have a multisite install with 7 subsites. They are all located under my main website (brenthanson.net).

I’m trying to access the Network Admin. I can see the dashboard for my main website, but if I try to go to the dashboard of any of the other 7 websites, it errors out.

I’ll use one of my websites (runloft.com) as an example because it’s a blank install. If you go to runloft.com or brenthanson.net/runloft, the webpage shows up even though it looks like the theme info is stripped (I have “twentyeleven” network enabled, but can’t get to the dashboard for RunLoft to make any changes.

I get an error message that says:

This webpage has a redirect loop
The webpage at http://brenthanson.net/runloft/wp-admin/ has resulted in too many redirects. Clearing your cookies for this site or allowing third-party cookies may fix the problem. If not, it is possibly a server configuration issue and not a problem with your computer.
Here are some suggestions:
Reload this webpage later.
Learn more about this problem.
Error 310 (net::ERR_TOO_MANY_REDIRECTS): There were too many redirects.

Anyway, I get the same error on 6 of my 7 sites (except for the main site – brenthanson.net).

At one point, this was working. I’m not sure if a plugin or theme caused problems, so I deleted every plugin and theme. Didn’t seem to fix anything.

I didn’t have an .htaccess file although I used to. Not sure how or when it got deleted, but I added one today with all of the following and it still didn’t fix anything:

RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]

# uploaded files
RewriteRule ^files/(.+) wp-includes/ms-files.php?file=$1 [L]

RewriteCond %{REQUEST_FILENAME} -f [OR]
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule ^ - [L]
RewriteRule . index.php [L]

Here is my wp-config.php file (with a few things obviously blanked out) as well:

[Code moderated as per the Forum Rules. The maximum number of lines of code that you can post in these forums is ten lines. Please use the pastebin]

One thing – I am hosted by GoDaddy which, in research, has caused some people problem.

Anyone have any ideas what I can try.