Need Help USG Flex 100 VPN mac and Windows

xalexandresilva77 · February 5

Hi there.

Current have a client with USG Flex 100.

That client is using L2TP/IPSec to connect with Windows 10 clients and iphones.

SSL clients paid version to connect with macs. But now macos 15 is not compatible anymore with SecureExtender.

How can i configure IKE2 protocol to work in OS15 but dont messup iphone and windows 10 configurations.

Current IKEv1 configuration

Phase 1: 3DES/SHA1/DH2
Phase 2: 3DES/SHA1/None

Have tried, but didn't work.

Phase 1: AES256, SHA256, DH19
Phase 2: AES256, SHA256, PFS: None

What configuration can I put in place so that I can work with Windows 10 and MacOS15 systems?

Zyxel_Judy · February 10

Hi @xalexandresilva77 ,

There is no configuration that can be applied to both Windows 10 and macOS 15. To set up the VPN connection for macOS 15, please refer to the article.

Why can't I establish a VPN connection after updating to macOS Sonoma? How can I resolve this issue? — Zyxel Community

xalexandresilva77 · February 10

Hi Judy.

Tanks for fast reply. Judy i have provisionally remove firewall from client network and configure is QNAP as VPN server. I will talk to him in order to test this configuration. I'll configure remote.

Judy this configuration doesn't not invalidate access from Windows 10 and 11 client and also Iphone mobile phone right?

Best Regards

Alexandre Silva