Switch vs. router issue
I am having a problem where Win 7 will identify my network as Public and will not let me change anything about it when I hardwire via my linksys SD205 switch. If I unplug the ethernet cable from the switch and plug directly into the router Win 7 will obtain the proper DNS values and will be assigned a IP address.Swithing the cable back will cause Win 7 to go through the identification process again and again it will show me connected to a Public network.I have tried hard coding the IP, DNS, and gateway addresses in to the V4 tcp/ip settings, but that has no effect.My wi-fi works just fine. That is connected to a Linksys wireless access point which in turn is cabled into the router.
October 1st, 2009 7:27pm

Hi, Your Linksys Wireless device , can you contect your switch to it instead of the modem router which is acting as ICS, this should make W7 see 2 networks. Contect W7 to the switch andAllow your W7 to get its ip address from the wireless device which already acts as NAT for your wireless contected computers. Slan go foill, Paul
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October 1st, 2009 11:32pm

No. The Linksys Access Point only has one ethernet cable. That cable currently goes into the router. That combination of hardwired router and the access point is what I use for my home Wi-Fi network. Any wireless device goes through the access point to the router to get an IP address, etc.
October 2nd, 2009 4:31am

Hi, From your description, we realize that when it connects to the router via the switch with Ethernet cable, the NIC cannot obtain a valid IP address and it keeps trying to obtain a network status from the router and finally it is recognized as a Public network. Meantime. The wireless NIC also connects to the router via a wireless AP. Is it correct? Now we are going to know why you would like to connect the two NICs on same computer to one server. In this case actually you only connect to Internet via one of the NICs which is configured as the interface of the default route. Connecting NICs on a same computer to one network usually causes broadcast storms. Since broadcast cannot pass router, the issue may not occur if you connect both to a router. However, if one of the NICs connects to a switch which cannot block broadcast, there will be issues with the NIC that connects to switch. How does it work if you disconnect the wireless connection and only connect to the router via the Ethernet cable?Arthur Xie - MSFT
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October 5th, 2009 6:40am

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