tailscale timed out

I just installed tailscale and it was working for some 20 minutes and now it's not.

I have an omv server set up with tailscale installed. Then I got the tailscale app for iPad (initially) and my android (trouble shooting). It worked with the iPad, and then suddenly stopped. I don't understandwhy it would work and then just stop working. This is my first time using tailscale.

Anyone have leads on what I should look into? Why would it have just stopped?

Sorry for such a nub questions... But I don't want to sign back up for reddit.

I don't believe I have any special security set up.