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Illinois State University

Known Error: Cisco AnyConnect with Mac OS X 10.15 (Catalina)


Users attempting to connect to Cisco AnyConnect while connected to ISUNet with OS X Catalina will receive an error message starting the VPN Client was unable to successfully verify the IP forwarding table modifications (See Figure 1).

Figure 1:
VPN Error Message Image


Users may contact the TSC to request an updated version of Cisco AnyConnect for Mac, which will work with Catalina and all previous Mac OS.

You can request this VPN software by navigating to and submitting a request, calling the TSC at (309) 438-4357 or emailing us at