Newbie Question, shop door Schlage dead bolt

It’s definitely not going to connect for the first time from that distance. You didn’t give the model number of your lock, but assuming it’s a Z wave lock, the first pairing Has to be within “whisper distance“ of the hub so that a security key can be exchanged. Once you get it added to your network, then it might actually work at that distance, especially if it’s one of the newer Z wave plus devices.

So for the initial pairing you need to either bring it closer to the hub or bring the hub closer to it.

If you have Wi-Fi and electrical power at the shop you can connect the hub to a Wi-Fi access point that has an ethernet socket on the side and use it that way just until you get the lock connected.

After the lock shows up as a lock on your network, move the hub back to its regular location. Then run a Z wave repair and it should be fine.

https://support.smartthings.com/hc/en-us/articles/200981864-How-do-I-make-sure-my-Z-Wave-devices-are-routing-optimally-in-the-SmartThings-app-

Although it’s likely that you will also need a beaming repeater within 15 feet of the lock.

FAQ: why would I need another beaming repeater if my zwave lock is already close to my hub?

If by chance it’s a Zigbee model, you have a different issue, because the distance is just too far. In that case, see the how to article in the community – created wiki on automating an outbuilding.

https://thingsthataresmart.wiki/index.php?title=How_to_Automate_an_Outbuilding