I'm developing on a Virtual Box on a Mac, and every time I log into the CP, I can log in successfully and click on one (maybe two) links before getting redirected to login again. I tested this on a staging server and it's working, but not in vagrant. However, I can get other things like Wordpress to allow me to login fine on the Vagrant box, so it seems to be some combination of Craft + Vagrant issue.
Any thoughts on where I might look to debug?
Note: I understand this is probably a vagrant issue, but curious if I can get any pointers of where to start looking inside of craft to find the potential problem/incompatibility.