Account confusion

My problem is I have now three dual taboo’s but only using one had one that went bad on me so replaced it with a new one works great however it says my subscription has run out now here is confusing part. Now 1 Tablo is in service can I transfer my subscription over to my new one?
Or do I have to buy another one?

What is best way to go at crossroads? Any ideas.I had a 6 month one. If that helps.

“Your Tablo TV Guide Service subscription is tied to YOU, not a specific device.
You can change or upgrade to a new Tablo DVR and keep your existing TV Guide subscription.”

Just log into account.tablotv.com and use these instructions to move your subscription to your new Tablo: