: Older versions of Kaspersky were known to completely block NetExtender on Windows 8.1 specifically; in these cases, a full uninstall of the AV was often the only fix. Current Recommendation Since Windows 8.1 is obsolete and no longer secure: Windows 8.1 and Sonicwall Netextender - Microsoft Q&A
: A common fix for connection failures on 8.1 involved changing the firewall's server cipher preference to 3DES or AES256_SHA1 to match the client's expectations. Common Troubleshooting for 8.1 Users on this platform frequently encountered these issues: Sonicwall Netextender Windows 8.1
: Windows 8.1 includes a native VPN provider list. Some support sources previously claimed NetExtender was "embedded," but users often found it missing from the dropdown menu. : Older versions of Kaspersky were known to