After turning on the multisite function, my feed/rss stop working for the main site. I mean: http://mysite.com/feed (or any variation) give me the message (on Chrome, but I tried others browsers as well):
This webpage has a redirect loop
The webpage at http://mysite.com/feed/ 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.
I tried disable all the plugins, checked .htaccess and everything… but the error persists.