AT&T不能访问公司网络
AT&T can’t access company network via internet.
遇到这个问题有几天了，现象是可以连通，但Ping任何服务器都不通。今天下班的时候跟公司一位IT谈了谈，他说他处理过几次这样的问题，但root cause不是很清楚，他怀疑跟virtual PC是不是有什么关系。
因此，我灵感一闪，回到家里卸载了virtual PC 2007,然后连接AT&T，这下可以正常访问公司网络资源了。接着，再安装Virtual PC 2007，又不能正常访问了。
现在我知道真正的原因是什么了。但是还是想继续同时使用这两个软件，于是我在google进行了一番搜索，很快找到了明确的答案。
我在微软的新闻组找到一下信息，同时，这个网址也贴出了相同的信息。
Hi,
Need help, here is the scenario -
I have following config:
- Windows XP Pro SP2
- Installed Virtual PC 2007 SP1
- Installed AT&T VPN Client (v.6.9.0, also tried latest v.7.6.1.3004)
01 scenarion: only AT&T VPN client is installed -- everything works, i can
access both web and vpn.
02 scenarion: only Virtual PC 2007 SP1 is installed -- everything works, i
can access web. VPN - N/A
02 scenarion: both Virtual PC 2007 SP1 and AT&T VPN installed --
02.a] AT&T VPN not connected - everything works, i can access web, VPN -
N/A.
02.b] AT&T VPN connected - nothing works, it authenticates and connects
successfully, but as soon it connected, i can't get to any of the sites
withing our VPN, not even any of the external web-sites.
I think there is some settings/drivers mismatch between these two softwares
that is causing this issue. If I uninstall MS Virtual PC 2007 SP1, AT&T VPN
client works fine. I even tried latest 7.6.1.3004 version of AT&T, but no
success.
I need to use both software, but as long as MS Virtual PC 2007 SP1 is
installed AT&T client is not working, whether it is installed first or after
AT&T.
Is there any known problem or solution to this problem ??
Thanks!
-Vinod
答案
I don't know about AT&T VPN, but I have used Cisco VPN and when you
install this it creates a network adapter called "Cisco VPN Adapter".
I guess that AT&T does the same.
Anyway, if you find this extra adapter among your "Connections", then
open its properties and make sure to UN-check the item in the list
named "Virtual Machine Network Services".
This makes this adapter driver not interfere with the VMNS.
It might solve your problem....
--
Bo Berglund (Sweden)
其实，很简单，因为Virtual PC安装后对每个网卡添加一个"Virtual Machine Network Services"，安装AT&T后会有一个虚拟的网卡，而这个网卡也安装了这个service，而这个服务阻止了正常的访问（更深的原因？），所以只需要不勾选这项就可以了。如图，
搞定收工。
