DO you know NAT table have aging time? From principles, I don't think NAT table and DDNS should correspond to Link Backup feature.

thewolf wrote what do you mean its al whit cable and i use the same cable did try difirent ones no better results It's suggested to use iperf3 to test speed.

If we use sppedtest.net to test the LOAD BALANCE, you'll never get the right result. AT first I also cannot understand why we should use the FAQ's weird mechanism to get. After reading again and...

ywlau wrote [QUOTE=fearthebeard;242962] Thank you very much. I have upgraded to V3 and will check its stability. Meanwhile, should i upgrade to V4 ? I found that there was a V4 version in official...

Avltech wrote So your device is offline completely unplugged? of course not. I'm not worried about it.

what's the configuration of your link backup, post the screenshots, please. DDNS module has nothing to do with link backup feature in design.