Hay! Host: iMac 27", Snowleopard Guest: Windows 7 Pro 32-bit Installed Parallels 6 for a costumer a few weeks ago and have problem with the network. The network connection stops at random occasions. Every setting seems to be right. To get connection back i have to swap from Bridged Ethernet to Shared Network or vice verca. A restart of the Host and Guest also gets connection back, which is what the costumer does to get by. It does not matter if the connection is bridged or Shared for the costumer, but this happens no matter which is chosen.
Please send a problem report (menu Help -> Report a Problem) and post here the report number next time when you meet the issue