Keep getting logged out

[PokerFace]

Ok it just happened 3 times in a row in last 5-10 minutes if your an admin that can check logs

I am logged in. I try to make or edit a post

Before my edit or new post goes through it says I need to sign in

I sign at given prompt. I try to make or edit that post

Before my my edit or new post goes through it says I need to sign in

I believe you see the pattern at this point. Is the website logging me out randomly and or not signing me in correctly? Anyone else having this issue? I started noticing it after site breach/server migration that happened recently. Thought I was crazy but given it just happened 3 times in a row I not think I crazy. Any admin with a suggestion on a fix would be great