Cannot add Leviton Decora WiFi switches

There are many different “shards,” cloud-based servers, that are used by smartthings. Going to the wrong one can cause various problems.

Instead, always use the universal sign on:

https://account.smartthings.com

And that will automatically take you to the correct URL for your account. :sunglasses:

FAQ: How to find out what "shard" (cloud slice IDE URL) your Account / Location is on?