Why from Vagrant (base - Ubuntu 12.04 LTS) box ping works really slow

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http://serverfault.com – I've use bridging to connect my box with real network. In Vagrantfile: config.vm.network :bridged Then when I ssh to box and try ping any host (e.g.: google.com) then it's pinging but very slow. Resolving host took it ~20sec then each ping is about ~10sec. Briging works only with wlan0 (network is unrichable for eth0). Can it be problem with wifi card? Pinging from my laptop works fine. (HowTos)