Update 11/13/2013: Cisco has released an AnyConnect client for Mac OS 10.9. It is now posted on the ITS Software Download site.
There is a compatibility issue with all versions of the Cisco AnyConnect client (the client used for the campus VPN service, UI Anywhere) and Mac OS X 10.9 Mavericks. The client will drop connections frequently, if it connects at all. There is a global ticket open with this issue classified as a ‘known bug’ at Cisco. There is no client update or workaround at this time. If you use the VPN service, ITS recommends waiting to upgrade to OS 10.9 or utilizing other remote access options, such as Remote Desktop through virtualdesktop.uiowa.edu, until the issue is resolved.
ITS will monitor the Cisco support case and provide an updated client as soon as it is available.