LightRoom while off line

I just called Adobes 1800 number and after having me in the queue for 30 mins the line disconnects, quite a poor customer support experience 

Oh, and on that trip, you signed out then signed in on the laptop correct? Not the stay at home desktop.

And you just stated update, not signed out/signed in. Very different process. 

You are referring to Lightroom Classic, correct? Not that cloud based Lightroom? What version?

yea to be honest, I should not have to before a trip I have thousands of other things to sort and Adobe is the only software I need to do this for. On the last trip, I updated everything before and then after two weeks could not use the software anymore because no internet.

Four weeks should be manageable. I have no idea how to determine when my copy last checked in with Adobe to validate the subscription. But consider signing out the signing in right before you go on travel, on that travel laptop that is. Doing so should restart the clock so to speak on validation for that device.

no, I don't sign out I can use Adobe on my Desktop at home and on my Laptop and I'm always signed in.

I just want to use the software when I needed it. My Laptop is not always used but only when travelling I can be 4 weeks without meaningful internet, and Adobe is the only software that causes this issue. 

First up, your copy of the Adobe Creative Cloud Desktop App. Do you leave it as signed in? Signing out deactivated the apps. Signing back on checks the Adobe Servers for your subscription, and if it validates, it then activates the apps. So do not sign out. That is not all the Adobe Creative Cloud Desktop does, but that bit relates, perhaps to your issue.

https://helpx.adobe.com/creative-cloud/help/manage-apps-services-desktop.html

Second off, if signed in, great, but how long will you be without internet? And add to that, how long since your subscription was checked and approved (validated)/ This validation occurs  on a regular basis, every 30 days, but a grace period exists in case of internet issues, depending upon if you pay monthly (as in 12 timed a year) or annually the period of time for the grace time if unable differs. One trick is to intentionally sign out then sign in just before the trip as to force the accreditation.

https://helpx.adobe.com/creative-cloud/kb/internet-connection-creative-cloud-apps.html

Third up, and I have no experience with this, you can contact Adobe over a phone line. Not sure what they do.

/edit/ above sentence turned out to be wrong.