diff --git a/tests/17-tun-rpl-br/04-border-router-traceroute.sh b/tests/17-tun-rpl-br/04-border-router-traceroute.sh
index a150c530f..33e239e08 100755
--- a/tests/17-tun-rpl-br/04-border-router-traceroute.sh
+++ b/tests/17-tun-rpl-br/04-border-router-traceroute.sh
@@ -23,7 +23,7 @@ make -C $CONTIKI/tools tunslip6
 make -C $CONTIKI/examples/rpl-border-router/ connect-router-cooja TARGET=zoul >> $BASENAME.tunslip.log 2>&1 &
 MPID=$!
 echo "Waiting for network formation"
-sleep 5
+sleep 20 # not in real-time, simulates at full speed
 
 # Do ping
 echo "Running Traceroute"
diff --git a/tests/17-tun-rpl-br/test-border-router.sh b/tests/17-tun-rpl-br/test-border-router.sh
index b8c8f018e..ff0e48cce 100755
--- a/tests/17-tun-rpl-br/test-border-router.sh
+++ b/tests/17-tun-rpl-br/test-border-router.sh
@@ -24,7 +24,7 @@ make -C $CONTIKI/tools tunslip6
 make -C $CONTIKI/examples/rpl-border-router/ connect-router-cooja TARGET=zoul >> $BASENAME.tunslip.log 2>&1 &
 MPID=$!
 echo "Waiting for network formation"
-sleep 5
+sleep 20 # not in real-time, simulates at full speed
 
 # Do ping
 echo "Pinging"