I have 3 modems, and the 3 of them are doing the same thing. I have D-link vr400, D-link vr900 and linksys x6200. Knowing that this bug has been recently appeared about 2 months ago. I have also the Netduma R1 in which, the ping is showing normally.
I asked Fraser if it's a hardware issue, but he confirmed that it must be a software issue.
I am 100 % sure that you, Dumaos team, can solve this problem. I know it's a matter of trial and error. I am willing to try whatever you suggest to me, so please keep trying to resolve this matter.
Thanks a lot.