diff --git a/System-Setup.md b/System-Setup.md
index accc17c..a2cf0ff 100644
--- a/System-Setup.md
+++ b/System-Setup.md
@@ -227,4 +227,8 @@ Once everything's booted and connected, then you should be ready to go!
### Setup Failures
-If your devices never connect and network lights stay off, check out [this page](FAQ-and-Common-Problems#my-computers-wont-connect-to-each-other).
\ No newline at end of file
+If your devices never connect and network lights stay off, check out [this page](FAQ-and-Common-Problems#my-computers-wont-connect-to-each-other). If you get a yellow light (or NT VERSION light) on any devices, make sure everything is up-to-date. If you see an orange light (or NT COLLISION) on the Reactor PLC, make sure none of your reactor PLC's have the same unit ID.
+
+| Wrong Version | Same Unit ID |
+| --- | --- |
+| 
| 
|