I've tried this in a million ways. So I have the latest parallels desktop running on my MBP with Win 7 x64 as guest OS. As a web developer I'd like to access my VM from another node on my network (and my MBP). So running under "shared network" the VM is very happy and connected. But I cannot access this machine even from the host OS using the own internal IP address assigned to it. This is different from Virtual Box for instance where this would work. So I tried bridged network. It doesn't get an IP address from my router (Mikrotik). Only if I manually set an IP address AND I uncheck "send host MAC address" the VM is able to connect to the outside world. Now that'd be fine if I can now access the machine using the IP address. But I can't. Not from the MBP, not from another machine on the internal network. I checked the windows firewall settings. Inbound http is allowed. I even switched the entire firewall off. I checked the router. All internal traffic is allowed. And works as I can access other machines on the network without any problems. So IMO the problem lies with either Mac OSX or Parallels. Any ideas? What I find suspect is this whole "send host mac address" thing. I mean: how come other virtualization solutions have no issue implementing a network card and getting DHCP assigned addresses, but Parallels has issues? Weird.