Setting the network connections down/up via ifconfig doesn't appear to help much. In a few rare instances I have been able to recover the network by toggling WiFi and disconnecting Ethernet cable, but this rarely works. These network issues do not occur if I have not connected to the VPN. We've also got a ticket logged with Sophos so they're already investigating at their end too.ĭoes anyone else have a similar config and how did they resolve it?Īdding some additional information related to an alternate version of the client, which still exhibits the behavior as described.Įxperiencing significant stability issues, and experiencing entire loss of network connectivity (wired and/or wireless) after disconnect, whether the connection was terminated intentionally or not.

Ideally though this needs to be further investigated at Cisco's end to see what the extension actually does and if we can actually ensure that the config specfied in the support article is correct, or it needs updating based on recent OS updates. Removing Sophos Anti-Virus and rebooting also works, but again we don't want to leave a Mac vulnerable.Reverting An圜onnect back to use the Kernel extension (only for Intel Macs, Kernel extensions not supported on M1 macs).So far, what we've noted is that one of the following is a short term fix: Sophos and An圜onnect both have a network extension here and both are active. * * DE8Y96K9QP .acsockext (6/6) Cisco An圜onnect Socket Filter Extension _work_extensionĮnabled active teamID bundleID (version) name Running systemextensionsctl list shows the following (note how all enabled and active):

We've also ensured all the necessary system extensions for Sophos anti-virus are set up as well and that those extensions are enabled by the configuration profile for that. We have a configuration profile set up in JAMF for An圜onnect to ensure that the system and kernel extensions are enabled, and that the socket filter is correctly set up with all the permissions required as per the Cisco Big Sur advisory article (which I should add should really have some example config screens for JAMF as it's the leading Mac management solution.)

We use Sophos for our Anti-virus solution and manage our Macs through JAMF. Since a recent Big Sur security update across a number of Big Sur versions (11.0 through to 11.6) we've noticed that even with the 4.10 versions of An圜onnect, we've seen some disconnections from the VPN connection, or the client crashes out when attempting to connect.

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