Hello, I've tried searching through the discussions/faq's and can't seem to find a solution to my VPN issue. I have a work laptop with Cisco Anyconnect VPN software installed and it can connect to work just fine if I use my old N600 wifi router. However, my XR500 is blocking something and doesn't allow the laptop to connect. I grabbed wireshark captures and can't seem to figure out why the newer XR500 won't work. I've tried setting NAT to Open, disable/enable UPnP, enable ping on internet side, all to no avail. I also just updated to the latest firmware, but it still has no effect. Anyone have similar issues or know of a solution? Thanks in advance

Hello, could you try disabling QoS from Anti-Bufferbloats' 3 line menu please and see if that resolves the issue?

I've got to wait until this weekend before putting the XR500 back into service and testing it out. I'll let you know how it goes.

I had the same problem. I found that the Hybrid VPN was switched on with no config. I turned it off and also turned off all QOS and could connect.

Well, it seems to be fixed now. Not quite sure what exactly fixed it. I went through a number if iterations since it didn't want to pick up an IP from my cable modem. The steps I took were (mostly): - Turn off all QOS - Disable all Hybrid VPN - Enable ping from outside - Backup settings - Reset to factory - Restore settings Along the way, I had to do multiple power cycles of both the XR500 as well as my cable modem and it finally picked up an IP. I can now connect to my work VPN using Cisco AnyConnect :-) Thanks for all the help

What is the Mfr and model# of the ISP modem the NG router is connected too? ptigad wrote: Well, it seems to be fixed now. Not quite sure what exactly fixed it. I went through a number if iterations since it didn't want to pick up an IP from my cable modem. The steps I took were (mostly): - Turn off all QOS - Disable all Hybrid VPN - Enable ping from outside - Backup settings - Reset to factory - Restore settings Along the way, I had to do multiple power cycles of both the XR500 as well as my cable modem and it finally picked up an IP. I can now connect to my work VPN using Cisco AnyConnect :-) Thanks for all the help

Cisco Anyconnect VPN - WNDR3700 works - Nighthawk XR500 doesn't work

15 Replies

Netduma-Fraser
NetDuma Partner
Mar 14, 2019
Hello, could you try disabling QoS from Anti-Bufferbloats' 3 line menu please and see if that resolves the issue?
- ptigad
  Aspirant
  Mar 15, 2019
  I've got to wait until this weekend before putting the XR500 back into service and testing it out. I'll let you know how it goes.
  - BanditMask
    Aspirant
    Mar 16, 2019
    I had the same problem. I found that the Hybrid VPN was switched on with no config. I turned it off and also turned off all QOS and could connect.
- bschollnick
  Aspirant
  Aug 19, 2019
  I'm having the same issue with Cisco AnyConnect VPN not working with the XR500, and Firmware v2.3.2.56?
  
  I've connected Netgear, and they are looking into it, but it's strange that I can find quite a few threads regarding NetDuma OS not working nicely with Cisco AnyConnect...
  
  One observation in my case, Cisco AnyConnect (Macintosh) works fine. Cisco AnyConnect (Windows 10-64bit) does not work.
  
  The Windows version reports:
  Connection Attempt has failed (error in response data)
  The AnyConnect Client service is not responding. A VPN Connection Cannot be established.
  If I bypass the router, and go directly to the cable mode, AnyConnect Windows works fine.
  
  From this thread, we know this has been investigated at least as early as 2019-03-14? Any chance that NetDuma has some better information or a more updated Firmware that Netgear hasn't released yet?
  - Netduma_Alex
    NetDuma Partner
    Aug 20, 2019
    No sadly not. I imagine this issue has something to do with UPnP not facilitating the connection correctly. Maybe some manual port forwarding is required?

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Cisco Anyconnect VPN - WNDR3700 works - Nighthawk XR500 doesn't work