Cisco AnyConnect Constantly Reconnecting on Macbook Pro - Page 2

brandonleetran · ‎06-06-2019

Hi Folks,

In the past month my VPN AnyConnect is constantly reconnecting. From every 3 minutes to every 15 minutes at times. This is a major blocker for attending meetings and workflow interruptions.

I've tried various changes from IPv6 disabling to MTU adjustments but none of these tweaks are correcting the problem.

Macbook Pro 15-inch, 2018

macOS Mojave 10.14.5

Cisco AnyConnect Secure Mobility Client Version 4.7.01076

AT&T Gigabit

Router Model	5268AC
Hardware Version	260-2173300
Software Version	11.1.0.531418-att

I did do a test and spent 1.5 hours at Starbucks connected to the VPN with no issues. What is it with AT&T and Cisco combination that is causing the constant reconnects?

Thanks for any help.

11:23:53 AM Reconnecting to ******.com...
11:23:55 AM Establishing VPN - Examining system...
11:23:55 AM Establishing VPN - Activating VPN adapter...
11:23:55 AM Establishing VPN - Configuring system...
11:23:58 AM Establishing VPN...
11:23:58 AM Connected to ******.com...
11:25:53 AM Reconnecting to ******.com...
11:25:56 AM Establishing VPN - Examining system...
11:25:56 AM Establishing VPN - Activating VPN adapter...
11:25:56 AM Establishing VPN - Configuring system...
11:25:58 AM Establishing VPN...
11:25:58 AM Connected to ******.com...
11:27:01 AM Reconnecting to ******.com...
11:27:03 AM Establishing VPN - Examining system...
11:27:03 AM Establishing VPN - Activating VPN adapter...
11:27:03 AM Establishing VPN - Configuring system...
11:27:06 AM Establishing VPN...
11:27:06 AM Connected to ******.com...
11:30:37 AM Reconnecting to ******.com...
11:30:39 AM Establishing VPN - Examining system...
11:30:39 AM Establishing VPN - Activating VPN adapter...
11:30:39 AM Establishing VPN - Configuring system...
11:30:52 AM Establishing VPN...
11:30:52 AM Connected to ******.com...
11:32:37 AM Reconnecting to ******.com...
11:32:40 AM Establishing VPN - Examining system...
11:32:40 AM Establishing VPN - Activating VPN adapter...
11:32:40 AM Establishing VPN - Configuring system...
11:32:42 AM Establishing VPN...
11:32:42 AM Connected to ******.com...

aninayak · ‎06-26-2019

To me mentioned conditions appears to be matching below said bug
ENH: Optimize tunnel security reinforcement on macOS upon virtual adapter detection: CSCvp04196

Please take a look at this bug and reverify the defined conditions in the bug and match them with the conditions that you are facing

thazarik · ‎07-13-2019

This is what helped me:

Open the console app, search for IN6_NDP_ADDR_EXPIRY. We're looking for something like this:
- kernel: in6_eventhdlr_callback Event IN6_NDP_ADDR_EXPIRY received
If found at regular intervals matching your VPN reconnects, read on
In network preferences, set a static IPv6 address. Just changing Configure IPv6: "automatic" to "manual" should do it.

vipyla · ‎08-08-2019

Yes, after turning off bluetooth completely and in network preferences setting configure IPV6 from automatic to manual the VPN session flap stopped.

syousef777 · ‎01-03-2020

We're in 2020, and still no fix!? Running macOS 10.15.2 and AnyConnect 4.8.01090 and seeing disconnects anywhere from just over an hour to within a minute of connecting.

1/3/20

8:48:45 AM Ready to connect.

8:48:45 AM Contacting SERVER.

8:48:53 AM User credentials entered.

8:49:06 AM Please respond to banner.

8:49:20 AM User accepted banner.

8:49:20 AM Establishing VPN session...

8:49:21 AM The AnyConnect Downloader is performing update checks...

8:49:21 AM Checking for profile updates...

8:49:21 AM Checking for product updates...

8:49:21 AM Checking for customization updates...

8:49:21 AM Performing any required updates...

8:49:21 AM The AnyConnect Downloader updates have been completed.

8:49:21 AM Establishing VPN session...

8:49:21 AM Establishing VPN - Initiating connection...

8:49:21 AM Establishing VPN - Examining system...

8:49:21 AM Establishing VPN - Activating VPN adapter...

8:49:21 AM Establishing VPN - Configuring system...

8:49:24 AM Establishing VPN...

8:49:24 AM Connected to SERVER.

10:10:15 AM Reconnecting to SERVER...

10:10:18 AM Establishing VPN - Examining system...

10:10:18 AM Establishing VPN - Activating VPN adapter...

10:10:18 AM Establishing VPN - Configuring system...

10:10:22 AM Establishing VPN...

10:10:22 AM Connected to SERVER.

10:10:23 AM Reconnecting to SERVER...

10:10:25 AM Establishing VPN - Examining system...

10:10:26 AM Establishing VPN - Activating VPN adapter...

10:10:26 AM Establishing VPN - Configuring system...

10:10:30 AM Establishing VPN...

10:10:30 AM Connected to SERVER.

10:11:23 AM Reconnecting to SERVER...

10:11:26 AM Establishing VPN - Examining system...

10:11:26 AM Establishing VPN - Activating VPN adapter...

10:11:26 AM Establishing VPN - Configuring system...

10:11:30 AM Establishing VPN...

10:11:30 AM Connected to SERVER.

10:11:30 AM Reconnecting to SERVER...

10:11:33 AM Establishing VPN - Examining system...

10:11:33 AM Establishing VPN - Activating VPN adapter...

10:11:33 AM Establishing VPN - Configuring system...

10:11:37 AM Establishing VPN...

10:11:37 AM Connected to SERVER.

10:31:45 AM Reconnecting to SERVER...

10:31:48 AM Establishing VPN - Examining system...

10:31:48 AM Establishing VPN - Activating VPN adapter...

10:31:48 AM Establishing VPN - Configuring system...

10:31:52 AM Establishing VPN...

10:31:52 AM Connected to SERVER.

10:31:52 AM Reconnecting to SERVER...

10:31:55 AM Establishing VPN - Examining system...

10:31:55 AM Establishing VPN - Activating VPN adapter...

10:31:55 AM Establishing VPN - Configuring system...

10:31:59 AM Establishing VPN...

10:31:59 AM Connected to SERVER.

11:35:34 AM Reconnecting to SERVER...

11:35:38 AM Establishing VPN - Examining system...

11:35:38 AM Establishing VPN - Activating VPN adapter...

11:35:38 AM Establishing VPN - Configuring system...

11:35:42 AM Establishing VPN...

11:35:42 AM Connected to SERVER.

11:35:42 AM Reconnecting to SERVER...

11:35:45 AM Establishing VPN - Examining system...

11:35:45 AM Establishing VPN - Activating VPN adapter...

11:35:45 AM Establishing VPN - Configuring system...

11:35:49 AM Establishing VPN...

11:35:49 AM Connected to SERVER.

11:38:30 AM Reconnecting to SERVER...

11:38:33 AM Establishing VPN - Examining system...

11:38:33 AM Establishing VPN - Activating VPN adapter...

11:38:33 AM Establishing VPN - Configuring system...

11:38:37 AM Establishing VPN...

11:38:37 AM Connected to SERVER.

11:38:37 AM Reconnecting to SERVER...

11:38:40 AM Establishing VPN - Examining system...

11:38:40 AM Establishing VPN - Activating VPN adapter...

11:38:40 AM Establishing VPN - Configuring system...

11:38:44 AM Establishing VPN...

11:38:44 AM Connected to SERVER.

11:46:29 AM Reconnecting to SERVER...

11:46:32 AM Establishing VPN - Examining system...

11:46:32 AM Establishing VPN - Activating VPN adapter...

11:46:32 AM Establishing VPN - Configuring system...

11:46:36 AM Establishing VPN...

11:46:36 AM Connected to SERVER.

11:46:36 AM Reconnecting to SERVER...

11:46:40 AM Establishing VPN - Examining system...

11:46:40 AM Establishing VPN - Activating VPN adapter...

11:46:40 AM Establishing VPN - Configuring system...

11:46:43 AM Establishing VPN...

11:46:43 AM Connected to SERVER.

11:48:17 AM Reconnecting to SERVER...

11:48:20 AM Establishing VPN - Examining system...

11:48:20 AM Establishing VPN - Activating VPN adapter...

11:48:20 AM Establishing VPN - Configuring system...

11:48:24 AM Establishing VPN...

11:48:24 AM Connected to SERVER.

11:48:24 AM Reconnecting to SERVER...

11:48:27 AM Establishing VPN - Examining system...

11:48:27 AM Establishing VPN - Activating VPN adapter...

11:48:27 AM Establishing VPN - Configuring system...

11:48:31 AM Establishing VPN...

11:48:31 AM Connected to SERVER.

12:04:59 PM Reconnecting to SERVER...

12:05:02 PM Establishing VPN - Examining system...

12:05:02 PM Establishing VPN - Activating VPN adapter...

12:05:02 PM Establishing VPN - Configuring system...

12:05:05 PM Establishing VPN...

12:05:05 PM Connected to SERVER.

12:05:05 PM Reconnecting to SERVER...

12:05:08 PM Establishing VPN - Examining system...

12:05:08 PM Establishing VPN - Activating VPN adapter...

12:05:08 PM Establishing VPN - Configuring system...

12:05:12 PM Establishing VPN...

12:05:12 PM Connected to SERVER.

12:33:20 PM Reconnecting to SERVER...

12:33:23 PM Establishing VPN - Examining system...

12:33:23 PM Establishing VPN - Activating VPN adapter...

12:33:23 PM Establishing VPN - Configuring system...

12:33:27 PM Establishing VPN...

12:33:27 PM Connected to SERVER.

1:18:35 PM Reconnecting to SERVER...

1:18:38 PM Establishing VPN - Examining system...

1:18:38 PM Establishing VPN - Activating VPN adapter...

1:18:38 PM Establishing VPN - Configuring system...

1:18:42 PM Establishing VPN...

1:18:42 PM Connected to SERVER.

1:18:42 PM Reconnecting to SERVER...

1:18:50 PM Establishing VPN - Examining system...

1:18:50 PM Establishing VPN - Activating VPN adapter...

1:18:50 PM Establishing VPN - Configuring system...

1:18:53 PM Establishing VPN...

1:18:53 PM Connected to SERVER.

2:05:55 PM Reconnecting to SERVER...

2:05:59 PM Establishing VPN - Examining system...

2:05:59 PM Establishing VPN - Activating VPN adapter...

2:05:59 PM Establishing VPN - Configuring system...

2:06:02 PM Establishing VPN...

2:06:02 PM Connected to SERVER.

2:06:02 PM Reconnecting to SERVER...

2:06:05 PM Establishing VPN - Examining system...

2:06:05 PM Establishing VPN - Activating VPN adapter...

2:06:05 PM Establishing VPN - Configuring system...

2:06:09 PM Establishing VPN...

2:06:09 PM Connected to SERVER.

2:55:39 PM Reconnecting to SERVER...

2:55:41 PM Establishing VPN - Examining system...

2:55:42 PM Establishing VPN - Activating VPN adapter...

2:55:42 PM Establishing VPN - Configuring system...

2:55:45 PM Establishing VPN...

2:55:45 PM Connected to SERVER.

2:55:46 PM Reconnecting to SERVER...

2:55:49 PM Establishing VPN - Examining system...

2:55:49 PM Establishing VPN - Activating VPN adapter...

2:55:49 PM Establishing VPN - Configuring system...

2:55:53 PM Establishing VPN...

2:55:53 PM Connected to SERVER.

3:32:27 PM Reconnecting to SERVER...

3:32:30 PM Establishing VPN - Examining system...

3:32:31 PM Establishing VPN - Activating VPN adapter...

3:32:31 PM Establishing VPN - Configuring system...

3:32:35 PM Establishing VPN...

3:32:35 PM Connected to SERVER.

3:32:35 PM Reconnecting to SERVER...

3:32:39 PM Establishing VPN - Examining system...

3:32:40 PM Establishing VPN - Activating VPN adapter...

3:32:40 PM Establishing VPN - Configuring system...

3:32:43 PM Establishing VPN...

3:32:43 PM Connected to SERVER.

3:32:44 PM Reconnecting to SERVER...

3:32:47 PM Establishing VPN - Examining system...

3:32:47 PM Establishing VPN - Activating VPN adapter...

3:32:47 PM Establishing VPN - Configuring system...

3:32:51 PM Establishing VPN...

3:32:51 PM Connected to SERVER.

4:08:02 PM Reconnecting to SERVER...

4:08:13 PM Establishing VPN - Examining system...

4:08:13 PM Establishing VPN - Activating VPN adapter...

4:08:13 PM Establishing VPN - Configuring system...

4:08:17 PM Establishing VPN...

4:08:17 PM Connected to SERVER.

4:10:27 PM Reconnecting to SERVER...

4:10:31 PM Establishing VPN - Examining system...

4:10:31 PM Establishing VPN - Activating VPN adapter...

4:10:31 PM Establishing VPN - Configuring system...

4:10:34 PM Establishing VPN...

4:10:34 PM Connected to SERVER.

4:10:34 PM Reconnecting to SERVER...

4:10:37 PM Establishing VPN - Examining system...

4:10:37 PM Establishing VPN - Activating VPN adapter...

4:10:38 PM Establishing VPN - Configuring system...

4:10:41 PM Establishing VPN...

4:10:41 PM Connected to SERVER.

4:24:58 PM Reconnecting to SERVER...

4:25:00 PM Establishing VPN - Examining system...

4:25:00 PM Establishing VPN - Activating VPN adapter...

4:25:01 PM Establishing VPN - Configuring system...

4:25:05 PM Establishing VPN...

4:25:05 PM Connected to SERVER.

6:26:23 PM Reconnecting to SERVER...

6:26:26 PM Establishing VPN - Examining system...

6:26:26 PM Establishing VPN - Activating VPN adapter...

6:26:26 PM Establishing VPN - Configuring system...

6:26:30 PM Establishing VPN...

6:26:31 PM Connected to SERVER.

7:16:39 PM Reconnecting to SERVER...

7:16:42 PM Establishing VPN - Examining system...

7:16:43 PM Establishing VPN - Activating VPN adapter...

7:16:43 PM Establishing VPN - Configuring system...

7:16:49 PM Establishing VPN...

7:16:49 PM Connected to SERVER.

ccubeman · ‎03-03-2020

This specific problem sealed the deal to move away from AnyConnect.

hostasaurus · ‎03-26-2020

Sadly this BS is not exclusive to AnyConnect. I'm having the exact same issues described on a MBPr 16 running 10.15.3 with all three of Fortinet FortiClient, OpenVPN Connect, and Viscosity (commercial OpenVPN client). At first I thought it was a screen saver / sleeping wifi issue, but then noticed more often that I'll drop VPN even while the laptop is being actively used. Apple wifi troubleshooter does not detect the issue as being a disconnect even if left in continuous monitoring mode.

If I capture kernel messages via console, I'm finding very short wifi flaps with messages looking like this:

default 15:53:29.805053-0400    kernel  postMessage::1349 APPLE80211_M_BSSID_CHANGED received
default 15:53:29.805197-0400    kernel  en0::IO80211Interface::postMessage bssid changed
default 15:53:29.805330-0400    mDNSResponder   <private>
default 15:53:29.805255-0400    kernel  001817.167532 wlan0.A[787] updateQoSFastLaneToNetworkState@1137:Enterprise Initiatives: Qos FastLane is Disabled
default 15:53:29.805766-0400    kernel  com.apple.p2p: IO80211AWDLPeerManager::getInfrastructureState lost infrastructure link
default 15:53:29.805773-0400    kernel  com.apple.p2p: IO80211AWDLPeerManager::getInfrastructureState infra channel 149 -> 0
default 15:53:29.805778-0400    kernel  com.apple.p2p: IO80211AWDLPeerManager::getInfrastructureState(): Infrastructure state changed: BSSID(00:00:00:00:00:00), Channel(0)
default 15:53:29.805780-0400    kernel  com.apple.p2p: IO80211AWDLPeerManager::interfaceStateChange Infra State Changed, Channel = 0
default 15:53:29.805531-0400    configd en0 link INACTIVE
default 15:53:29.805784-0400    kernel  com.apple.p2p: interfaceStateChange[2611]: Infra link down, disable dynamic SDB
default 15:53:29.805793-0400    kernel  com.apple.p2p: IO80211AWDLPeerManager::configureValidAWDLChannels Default alternate 5GHz channel 44 is valid
default 15:53:29.805797-0400    kernel  com.apple.p2p: IO80211AWDLPeerManager::configureValidAWDLChannels social channel 2G: 6 on 5G: 149 5G Alt: 44 country code: US
default 15:53:29.806354-0400    symptomsd       SCDynamicStore config_callback: k: State:/Network/Interface/en0/LinkQuality
default 15:53:29.806060-0400    configd en0: no SSID

When this happens, it usually recovers within 100-200ms, but because the kernel has sent a 'network change event', the VPN client drops. Now I have other non-Mac (and Mac non-T2) systems on the same access points, same SSID, same vlan, that are not experiencing this issue.

I'm going to test out the bluetooth and/or airdrop disabling to see if it produces any positive change; I'd at least like to be able to definitively blame apple by disabling features to see the problem go away.

Edit: ugh. No change. Airdrop disabled, bluetooth disabled, and I got a whole 20 minutes out of my VPN before it booted me.

dpolley · ‎08-18-2020

Has anyone found a resolution to this issue? I have disabled bluetooth and airdrop and continue to see the connection drop. I am on AnyConnect 4.8.03036 and macOS Catalina 10.15.6. The problem started occurring recently on my machine after the latest installation of the Catalina update.

syousef777 · ‎08-18-2020

Nope, opened a case with Cisco support and they just blamed Apple.

supplychain27 · ‎11-06-2020

You bet, called up Cisco IT twice in last 2 weeks and it ended with the issue being with Mac. Seems like nobody wants to solve this problem. So much for productivity and wfh