Can't access account despite accessing from two devices I used in the past

We have a shared account we use just for the enterprise app store. we are a microsoft company so it is not a "work" account in the traditional sense that its a gsuite email. I have it logged in on a spare tablet, and I set up Google Authenticator and my cell as backups. We do not have to access often as we only need to when we need to add approved apps to the store. We use on handheld scanners in the stores, skorpio x5s. I tried to access this week on my computer I have used in the past. Google is saying it does not recognize the device, then wants me to hit the code on skorpio x5. I have no clue which one as we have 14 in each of our 6 locations. I tried to access on the tablet again, does not recognize the device. It never once has asked me for texted code, or for the authenticator. I went to one location and checked all the skorpio x5s, and not a single one was logged into a google account. We do have it connected to our sureMDM account to allow for selecting the approved apps. How do I gain access back to the account using my authenticator I setup or even a texted code.