Getting redirected to login page on every other CP request when using Vagrant 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.
I kind of doubt this is it, but Craft does have a couple of config settings that might be coming into play here.

You can tell if you're being affected by these by looking in your craft/storage/runtime/logs files and see if there are any messages being logged with a [warning] related to not being able to restore session.

If you are being affected by those, try setting both of them to false just to see if that helps.