diff --git a/bundles/pppoe/metadata.py b/bundles/pppoe/metadata.py
index d9c4c67..843e519 100644
--- a/bundles/pppoe/metadata.py
+++ b/bundles/pppoe/metadata.py
@@ -42,9 +42,10 @@ defaults = {
                 },
                 'Service': {
                     'Type': 'oneshot',
-                    'ExecStart': '/sbin/tc qdisc replace root dev ppp0 cake bandwidth 38Mbit internet besteffort nat egress memlimit 256mb',
-                    # no drops save:
-                    #'ExecStart': '/sbin/tc qdisc replace root dev ppp0 cake bandwidth 38Mbit internet besteffort nat egress memlimit 256mb',
+                    'ExecStart': '/sbin/tc qdisc replace root dev ppp0 cake bandwidth 37Mbit internet besteffort triple-isolate nat egress memlimit 256mb',
+                    # - no drops save
+                    # - bis 37MBit keine retries bei: iperf3 --client 49.12.184.229 -t999 -i5 --bidir
+                    #'ExecStart': '/sbin/tc qdisc replace root dev ppp0 cake bandwidth 37Mbit internet besteffort nat egress memlimit 256mb',
                     'RemainAfterExit': 'yes',
                 },
                 'Install': {