Comments on: Fix for Vista cannot obtain IP address from certain routers or DHCP Server http://www.windowsreference.com/windows-vista/fix-for-vista-cannot-obtain-ip-address-from-certain-routers-or-dhcp-server/ Windows 7 2008 2003 Vista XP 2000 Ms Office Tutorials Fixes Tips Fri, 19 Mar 2010 23:48:18 +0000 http://wordpress.org/?v=2.9.2 hourly 1 By: Zemi http://www.windowsreference.com/windows-vista/fix-for-vista-cannot-obtain-ip-address-from-certain-routers-or-dhcp-server/comment-page-1/#comment-2624 Zemi Fri, 02 Oct 2009 13:19:12 +0000 http://www.windowsreference.com/windows-vista/fix-for-vista-cannot-obtain-ip-address-from-certain-routers-or-dhcp-server/#comment-2624 My main computer (windows Xp) connected to the router would disconnect when i'd go online with 1 of my laptops(vista) for some reason. I managed to fix this problem by going to (main computer) xp start/ control panel/ network and internet connections/ network connections/ select local area connection 2, right click ,properties/advanced then untick internet connection sharing which allows other network users to connect through this computers internet connection. Hopefully this should fix the problem. My main computer (windows Xp) connected to the router would disconnect when i’d go online with 1 of my laptops(vista) for some reason.
I managed to fix this problem by going to (main computer) xp start/ control panel/ network and internet connections/ network connections/ select local area connection 2, right click ,properties/advanced then untick internet connection sharing which allows other network users to connect through this computers internet connection.
Hopefully this should fix the problem.

]]> By: Rob Sykes http://www.windowsreference.com/windows-vista/fix-for-vista-cannot-obtain-ip-address-from-certain-routers-or-dhcp-server/comment-page-1/#comment-525 Rob Sykes Wed, 06 Aug 2008 13:38:18 +0000 http://www.windowsreference.com/windows-vista/fix-for-vista-cannot-obtain-ip-address-from-certain-routers-or-dhcp-server/#comment-525 I believe I may have found the problem to some people not getting vista dhcp working with an xp server. The nic on the vista machine showed the packets going out, but no reply from the xp machine. DHCP rfc's 1533, 1534, 1541 and 1542 show that the dhcp ports are 67 and 68. (http://www.comptechdoc.org/independent/networking/guide/netdhcp.html of 6 Aug 2008). Wireshark confirmed vista was using these ports. I then went to xp start/settings/control panel/network connections and looked at local area connection 2 (shared) properties. This is the internet connection sharing nic which has the dhcp server attached. I went to the advanced tab and in the internet connection sharing area clicked settings. Services comes up and showed dhcp (67) and dhcp (68) unchecked. DNS also unchecked.(we had to previously manually insert the dns server entries) I checked them all, a re boot and bingo! Since I made this change, my xp client pc also sends dhcp requests via ports 67 and 68 so I have no idea how the xp clients would have worked prior to the change. I hope this helps. Rob I believe I may have found the problem to some people not getting vista dhcp working with an xp server.

The nic on the vista machine showed the packets going out, but no reply from the xp machine. DHCP rfc’s 1533, 1534, 1541 and 1542 show that the dhcp ports are 67 and 68. (http://www.comptechdoc.org/independent/networking/guide/netdhcp.html of 6 Aug 2008). Wireshark confirmed vista was using these ports. I then went to xp start/settings/control panel/network connections and looked at local area connection 2 (shared) properties. This is the internet connection sharing nic which has the dhcp server attached. I went to the advanced tab and in the internet connection sharing area clicked settings. Services comes up and showed dhcp (67) and dhcp (68) unchecked. DNS also unchecked.(we had to previously manually insert the dns server entries) I checked them all, a re boot and bingo!

Since I made this change, my xp client pc also sends dhcp requests via ports 67 and 68 so I have no idea how the xp clients would have worked prior to the change.

I hope this helps.
Rob

]]> By: Sohail http://www.windowsreference.com/windows-vista/fix-for-vista-cannot-obtain-ip-address-from-certain-routers-or-dhcp-server/comment-page-1/#comment-526 Sohail Fri, 25 Apr 2008 05:50:24 +0000 http://www.windowsreference.com/windows-vista/fix-for-vista-cannot-obtain-ip-address-from-certain-routers-or-dhcp-server/#comment-526 It tried this but it did not work. It tried this but it did not work.

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