diff --git a/tests/17-tun-rpl-br/08-border-router-cooja-frag.sh b/tests/17-tun-rpl-br/08-border-router-cooja-frag.sh
index 53b867644..0e80018b4 100644
--- a/tests/17-tun-rpl-br/08-border-router-cooja-frag.sh
+++ b/tests/17-tun-rpl-br/08-border-router-cooja-frag.sh
@@ -6,4 +6,4 @@ CONTIKI=$1
 # Simulation file
 BASENAME=01-border-router-cooja
 
-bash test-border-router.sh $CONTIKI $BASENAME fd00::204:4:4:4 60 600 2
+bash test-border-router.sh $CONTIKI $BASENAME fd00::204:4:4:4 60 1200 4
diff --git a/tests/17-tun-rpl-br/09-native-border-router-cooja-frag.sh b/tests/17-tun-rpl-br/09-native-border-router-cooja-frag.sh
index b1aa1351b..24baa1556 100755
--- a/tests/17-tun-rpl-br/09-native-border-router-cooja-frag.sh
+++ b/tests/17-tun-rpl-br/09-native-border-router-cooja-frag.sh
@@ -6,4 +6,4 @@ CONTIKI=$1
 # Simulation file
 BASENAME=07-native-border-router-cooja
 
-bash test-native-border-router.sh $CONTIKI $BASENAME fd00::204:4:4:4 60 600 2
+bash test-native-border-router.sh $CONTIKI $BASENAME fd00::204:4:4:4 60 1200 4