Cisco Anyconnect Constantly Reconnecting on Windows 7

[ThangarajNeelakandan13441]

I am an user of Cisco AnyConnect VPN. I am the only one facing this reconnect issue among my team members. Sometimes the issue is auto resolved. Sometimes it just keeps reconnecting and annoys me a lot.

I am unable to figure out the reason for this behaviour. Any useful suggestions to resolve this issue would be highly appreciated. 

[11/10/2019 6:47:01 PM] Establishing VPN - Examining system...
[11/10/2019 6:47:01 PM] Establishing VPN - Activating VPN adapter...
[11/10/2019 6:47:01 PM] Establishing VPN - Configuring system...
[11/10/2019 6:47:01 PM] Establishing VPN...
[11/10/2019 6:47:02 PM] Connected to .
[11/10/2019 6:47:09 PM] Reconnecting to ...
[11/10/2019 6:47:15 PM] Establishing VPN - Examining system...
[11/10/2019 6:47:15 PM] Establishing VPN - Activating VPN adapter...
[11/10/2019 6:47:15 PM] Establishing VPN - Configuring system...
[11/10/2019 6:47:15 PM] Establishing VPN...
[11/10/2019 6:47:15 PM] Connected to .
[11/10/2019 6:47:23 PM] Reconnecting to ...
[11/10/2019 6:47:30 PM] Establishing VPN - Examining system...
[11/10/2019 6:47:30 PM] Establishing VPN - Activating VPN adapter...
[11/10/2019 6:47:30 PM] Establishing VPN - Configuring system...
[11/10/2019 6:47:31 PM] Establishing VPN...
[11/10/2019 6:47:31 PM] Connected to .
[11/10/2019 6:47:38 PM] Reconnecting to ...
[11/10/2019 6:47:44 PM] Establishing VPN - Examining system...
[11/10/2019 6:47:44 PM] Establishing VPN - Activating VPN adapter...
[11/10/2019 6:47:44 PM] Establishing VPN - Configuring system...
[11/10/2019 6:47:44 PM] Establishing VPN...
[11/10/2019 6:47:44 PM] Connected to .
[11/10/2019 6:47:52 PM] Reconnecting to ...
[11/10/2019 6:47:58 PM] Establishing VPN - Examining system...
[11/10/2019 6:47:58 PM] Establishing VPN - Activating VPN adapter...
[11/10/2019 6:47:58 PM] Establishing VPN - Configuring system...
[11/10/2019 6:47:58 PM] Establishing VPN...
[11/10/2019 6:47:58 PM] Connected to .
[11/10/2019 6:48:06 PM] Reconnecting to ...
[11/10/2019 6:48:13 PM] Establishing VPN - Examining system...
[11/10/2019 6:48:13 PM] Establishing VPN - Activating VPN adapter...
[11/10/2019 6:48:13 PM] Establishing VPN - Configuring system...
[11/10/2019 6:48:13 PM] Establishing VPN...
[11/10/2019 6:48:13 PM] Connected to .
[11/10/2019 6:48:21 PM] Reconnecting to ...
[11/10/2019 6:48:27 PM] Establishing VPN - Examining system...
[11/10/2019 6:48:27 PM] Establishing VPN - Activating VPN adapter...
[11/10/2019 6:48:27 PM] Establishing VPN - Configuring system...
[11/10/2019 6:48:27 PM] Establishing VPN...
[11/10/2019 6:48:27 PM] Connected to .
[11/10/2019 6:48:35 PM] Reconnecting to ...
[11/10/2019 6:48:40 PM] Establishing VPN - Examining system...
[11/10/2019 6:48:40 PM] Establishing VPN - Activating VPN adapter...
[11/10/2019 6:48:40 PM] Establishing VPN - Configuring system...
[11/10/2019 6:48:40 PM] Establishing VPN...
[11/10/2019 6:48:41 PM] Connected to .
[11/10/2019 6:48:48 PM] Reconnecting to ...
[11/10/2019 6:48:55 PM] Establishing VPN - Examining system...
[11/10/2019 6:48:55 PM] Establishing VPN - Activating VPN adapter...
[11/10/2019 6:48:55 PM] Establishing VPN - Configuring system...
[11/10/2019 6:48:55 PM] Establishing VPN...
[11/10/2019 6:48:55 PM] Connected to .

[Mohammed al Baqari]

Are all of you connecting from same location? If not try to ask your
network guys to disable DTLS and reduce the MTU value in ASA.

[ThangarajNeelakandan13441]

No. I am connecting using my wifi network. 

[bern81]

hi,

We had same issue before, the vpn were reconnecting every 1 minute approximately.

After many tshoot, we found out that DTLS (udp 443) was not allowed on the inbound-acl on the outside insterface.

after allowing it, issue was fixed.

please rate if helpful.

[ThangarajNeelakandan13441]

Hi, 

Thanks for your suggestion. 

I am the only one affected by this issue when connected to WiFi. I presume that some setting in my machine must be altered to get this resolved. My colleagues are able to connect to VPN using WiFi.