diff --git a/Part 4 - My experience/4 - meswifi.md b/Part 4 - My experience/4 - meswifi.md
index ae2ae787..5cf75466 100644
--- a/Part 4 - My experience/4 - meswifi.md	
+++ b/Part 4 - My experience/4 - meswifi.md	
@@ -34,7 +34,7 @@ Then we start to connect to official towers. At north we decide to grow up with
 
 ![sant Fost](../Images/1367578604315.jpg)
 
-Look at the summit antenna. It's for the magnetic steam machine.
+Look at the summit antenna. It's for the magnetic steam machine. And other cable, this type **ethernet** [[18]](https://en.wikipedia.org/wiki/Ethernet), is culpable of all my adventure.
 
 ### External Links
 
@@ -72,4 +72,6 @@ Look at the summit antenna. It's for the magnetic steam machine.
 
 17. https://ca.wikipedia.org/wiki/Sant_Fost_de_Campsentelles
 
+18. https://en.wikipedia.org/wiki/Ethernet
+
     
\ No newline at end of file