How odd, I don't appear to have any issues with this new version. Ping works fine, DNS resolution works fine. I wonder if it is related to your installation of 'real' ping? Also I went to great lengths to carefully add the symlinks required for all the new busybox commands. I was careful to NOT overwrite anything that was already in use (i.e. overwrite some 'real' programs with symlinked busyboxed versions). Everything seems to be fine.