Cisco anyconnect keeps disconnecting (4s) within certain network

[Piete68049]

Dear all,

whilst connecting to my office VPN, annyconnect secure mobile client keeps reconnecting every 4s:

     09:39:16    Contacting vpn.###.######.de.

     09:39:26    User credentials entered.

     09:39:26    Establishing VPN session...

     09:39:27    The AnyConnect Downloader is performing update checks...

     09:39:27    Checking for profile updates...

     09:39:27    Checking for product updates...

     09:39:27    Checking for customization updates...

     09:39:27    Performing any required updates...

     09:39:27    The AnyConnect Downloader updates have been completed.

     09:39:27    Establishing VPN - Initiating connection...

     09:39:27    Establishing VPN session...

     09:39:28    Establishing VPN - Examining system...

     09:39:28    Establishing VPN - Activating VPN adapter...

     09:39:31    Establishing VPN - Configuring system...

     09:39:31    Establishing VPN...

     09:39:31    Connected to vpn.###.####.de.

     09:39:39    Reconnecting to vpn.###.#####.de...

     09:39:40    Establishing VPN - Examining system...

     09:39:46    Establishing VPN - Activating VPN adapter...

     09:39:50    Establishing VPN - Configuring system...

     09:39:50    Establishing VPN...

     09:39:50    Connected to vpn.###.####.de.

     09:39:50    Reconnecting to vpn.###.#####.de...

     09:39:50    Establishing VPN - Examining system...

     09:39:50    Establishing VPN - Activating VPN adapter...

     09:39:50    Establishing VPN - Configuring system...

     09:39:50    Establishing VPN...

     09:39:50    Connected to vpn.###.####.de.

     09:39:58    Reconnecting to vpn.###.#####.de...

     09:39:59    Establishing VPN - Examining system...

     09:39:59    Establishing VPN - Activating VPN adapter...

     09:39:59    Establishing VPN - Configuring system...

     09:40:00    Establishing VPN...

     09:40:00    Connected to vpn.###.####.de.

     09:40:07    Reconnecting to vpn.###.#####.de...

It seems as during reconnection, there is no network connection at all,

I only have this problem at my GFs place (not with other networks). (blanked out the VPN name with ###).

Anyone who knows a solution?

[Cristian Matei]

Hi,

   It seems that your GF is messing up with you, wants you to stop working when at her place.:) If the problem shows up only when you're in one specific place, post the DART logs in here.

https://community.cisco.com/t5/security-documents/how-to-collect-the-dart-bundle-for-anyconnect/ta-p/3156025

Regards,

Cristian Matei.

[Greg Gibbs]

If this is only happening in the one location, I would suspect something on the router is causing the problem.

If your VPN connection is using IPSec, verify that the router supports some sort of IPSec Passthrough or try using SSL VPN (if the option is available).

Look for any other settings on the router that could affect IPSec or SSL traffic and check if the ISP has any restrictions on such traffic.