Solving Issues with Sophos Antivirus on Mac Big Sur: A Comprehensive Guide

As a Cisco Jabber user, you may have encountered issues with connectivity when using Sophos antivirus software on your Mac running Big Sur. These problems can be frustrating and affect your productivity. In this article, we will explore the common issues that arise from the interaction between Jabber and Sophos antivirus on Mac Big Sur.

Identifying the Problem

When experiencing connectivity issues with Jabber and Sophos antivirus on Mac Big Sur, the first step is to review the logs on both ends. On the UCM end, the logging tends to show timeouts and similar occurrences when Jabber sends nothing to the Expressway, which simply discontinues the conversation. The process internally restarts, but to no avail. In the log, you may notice the via line showing the client's IP and a port of 0, which Jabber notes as a bad message and discards it. The Expressway also responds with a proxy auth challenge (407), which Jabber is okay with and sends back.

Analyzing Jabber Logs

For MRA customers, analyzing the Jabber log can provide valuable insights into the issue. Upon closer inspection, you may find that whatever mechanism grabs the socket details for the SIP connection is unable to determine the local port. This was a common problem encountered by one of our customers who experienced similar issues before discovering this thread.

Troubleshooting Steps

To resolve the issue with Sophos antivirus on Mac Big Sur, follow these troubleshooting steps:

1. Check your Jabber logs for any errors or timeout messages.

2. Review the UCM logs to see if there are any issues with the Expressway or proxy auth challenges.

3. Verify that your Sophos antivirus software is up-to-date and configured correctly.

4. Disable Sophos antivirus temporarily to see if it resolves the issue.

5. Reach out to Cisco Jabber support for further assistance and guidance.

In conclusion, the interaction between Jabber and Sophos antivirus on Mac Big Sur can cause connectivity issues. By understanding the common problems that arise from this interaction, you can take steps to troubleshoot and resolve these issues. Remember to analyze your logs carefully, update your software regularly, and consider disabling antivirus temporarily to see if it resolves the problem. With these troubleshooting steps, you should be able to get Jabber up and running smoothly on your Mac Big Sur machine with Sophos antivirus installed.

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