diff --git a/ci-scripts/ci_ueinfra.yaml b/ci-scripts/ci_ueinfra.yaml
index b58e14ff6a..b888f6bb59 100644
--- a/ci-scripts/ci_ueinfra.yaml
+++ b/ci-scripts/ci_ueinfra.yaml
@@ -40,6 +40,7 @@ nrmodule2_quectel:
     - sudo -S ip link set dev wwan1 mtu 1500
   MTU : 1500
 
+# CAUTION: 192.168.18.89 address has to be changed when the server is moved
 #single UE single ping
 amarisoft_ue_1:
   ID: amarisoft_ue_1