I just finished setting up multisite on a clean install. I am using the subdirectory option. I completed all of the steps in the set up guide. However, after clearing browser cache and logging back in I do not see the 'My Sites' item in the main nav bar.
If I go to Tools > Network Setup I see a message that says "Warning: An existing WordPress network was detected."
Any ideas for troubleshooting this? I'm not sure where to start.