Hello,
recently i bought this nice router,i have a setup problem. (it more complicated than routers i have seen before ) Windows Server have 2 connections
1. connected to RB750G
2. through another router, which is connected to RB750G

internet works for some 1minute after server startup, then disaperars.
1. connection cannot ping
2. works like it should

When i click diagnose button, this message apperas. What to do?

RB750g is almost default configuration
--------------------------
[Window Title]
Windows Network Diagnostics

[Main Instruction]
Windows confirmed that "Primary DNS Server" is currently online, but is not responding to connection attempts at this time.

[Content]
This usually means that a firewall is running somewhere between the two computers and is blocking "domain". Windows has confirmed that Windows Firewall on this computer is correctly configured to allow this connection. However, a remote firewall might be blocking your connection.

[The following policy might need to be adjusted to allow Windows to connect:] [Unplug or disable one of the active connections to try and solve the problem] [Reset the network adapter "Local Area Connection"] [Cancel]

it seems that problem was default driver from microsoft. Updated from broadcomm homepage, everything works well. How can i close this topic?