diff --git a/doc/erko_howto_tools.txt b/doc/erko_howto_tools.txt
index da4dc0e0c9843d15c1b15d9d77c1a8ef203b09a8..141b288b153c33f45a6e0fb3e1692ef7b6e5ce65 100755
--- a/doc/erko_howto_tools.txt
+++ b/doc/erko_howto_tools.txt
@@ -262,9 +262,13 @@ sdp_rw.py --host 10.99.0.250 --port 4842 -r firmware_version
 sdp_firmware.py --host 10.99.0.250 --port 4842 -n 64:79 --reboot --image USER
 sdp_rw.py --host 10.99.0.250 --port 4842 -r firmware_version
 
-# MTU wijzigen
+# MTU wijzigen (when statistics packets get lost, show as Rx error in ifconfig)
 sudo ifconfig enp67s0f1 10.99.0.249 netmask 255.255.0.0 mtu 9000 up
 
+# When dop386 with sdp-arts has no ip address do:
+sudo ifconfig enp5s0 10.99.0.254
+sudo ifconfig enp5s0 netmask 255.255.0.0
+
 Last SDPFW version used in 2022:
   kooistra@dop386:~/git/sdptr$ sdp_rw.py --host 10.99.0.250 --port 4842 -r firmware_version
   read firmware_version: