I just set up MAMP and installed WP with everything running fine, until I activated multisite. Now I'm getting the "This webpage has a redirect loop" message. On activating multisite, I just copied and pasted the code provided within the WP multisite activation screen, which is also shown at http://codex.wordpress.org/Multisite_Network_Administration
The wp.config changes seem pretty straightforward. I have the following (excerpt)
I don't think anything is wrong there, but I don't understand the .htaccess code and so maybe I needed to change something from the code provided? If that code is appropriate, then what does 'this webpage has a redirect loop" actually mean? And where do I look for the solution?