WiFi issues with Cisco AnyConnect

by admin on September 6, 2011

I use Cisco AnyConnect on my Windows 7 computer  to make VPN connections. It also has capability to connect to WiFi. But I always had problems in connecting toWiFi with AnyConnect. Connection drops frequently and it keeps saying ‘Acquiring IP address‘.

AnyConnect installs a service called ‘Network Access Manager‘ which seems like takes over the native Windows WiFi connecting client. So when I click on the network icon in the System tray it says ‘No connections are available’(See below snapshot). Without AnyConnect, it always displays the WiFi connections available.

 If you are facing the problem then you can try the following solution that worked for me.

  • Open Services  management console by running Services.msc from Run
  • Find the service ‘Cisco AnyConnect Network Access Manager‘.
  • Right click and stop the service.
  • Now Cisco AnyConnect will say ‘NAM service unavailable
  • Now Windows will use the native WiFi client to connect to the WiFi
  • When you reboot your system, the NAM service will start and may cause problem again.  You can disable this service in Services management console to prevent that.

AnyConnect has settings to disable the NAM feature. But that did not work for me. Even after disabling NAM service,  I could not connect to WiFi. Windows network icon shows the WiFi connection but gives the error ‘Windows was not able to connect to…‘.   I followed the below steps to do this.

  • Opened Anyconnect window and click on Advanced.
  • Clicked on ‘Networks’ tab in the left side pane.
  • Clicked on Configuration tab. Changed the NAM to disabled as shown below.

 

{ 7 comments… read them below or add one }

Bruce September 12, 2011 at 2:59 pm

Thanks Dude! You saved my day. I wonder how cisco released anyconnect with such an obvious bug.

Reply

Hari kumar March 10, 2012 at 6:12 pm

Even i have the same problem.Thanks for sharing the info but it didnt help me completely. If i disable the NAM then VPN authentication is failing/ If i enable the NAM it disables my WIFI. Can any one suggest me some good idea how to overcome this problem?

Reply

admin March 11, 2012 at 6:29 pm

By ‘disabling NAM’ you mean you stopped the NAM service, right? Disabling NAM in any connect UI did not solve the issue in my case. I stopped the NAM service in services.msc.

Marcman April 24, 2012 at 1:49 pm

Why stopping NAM? If you can stop you can also uninstall it…

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Abhishek January 10, 2013 at 7:55 am

Hi,

The issue could be with the local firewall installed on the machine. Also, if you have more than 1 firewalls or 1 firewall and a HIPS installed on the machine could result in similar issues. More than 1 firewall on the machine always conflict, remember you already have windows firewall turned ON. You can also generate DART Bundle and analyse NAM logs and check where is it failing.

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andro February 27, 2014 at 4:53 pm

life saver! i have clients in using this software and yesterday i had them running around with a long cat5 cable :P

Reply

Peter S. October 20, 2014 at 12:47 pm

THANK YOU!

I’ve spent so much time trying to change settings, release/renew/flushdns, disabling AnyConnect’s network controls, and rebooting, rebooting, rebooting.

This seems to have finally allowed me to connect to new WiFi networks without issue.

Thanks again. Cisco needs to fix this, what a horrible bug.

Reply

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