Title says it all. Feature request to add native support for using Yubico Yubikey OTP 2FA to both Global VPN and SSL VPN. Yes, you can use a Yubikey along with their Authenticator app for SSL VPN, but this is an extra step for users and isn't possible with Global VPN.
Jul 13, 2018 [SOLVED] Changing SSL VPN port to 443 - SonicWALL - Spiceworks Nov 21, 2019 Introducing SonicWall VPN Reports and VPN Dashboard
SSL_VPN - SonicWall
NOTE: The VPN Access tab affects the ability of remote clients using GVC, NetExtender, and SSL VPN Virtual Office bookmarks to access network resources. To allow GVC, NetExtender, or Virtual Office users to access a network resource, the network address objects or groups must be added to the Access List on the VPN Access t ab.
NOTE: The VPN Access tab affects the ability of remote clients using GVC, NetExtender, and SSL VPN Virtual Office bookmarks to access network resources. To allow GVC, NetExtender, or Virtual Office users to access a network resource, the network address objects or groups must be added to the Access List on the VPN Access t ab.
As per your description, looks like possible mess up with Nx adapter on the client machine. In addition to the suggestions given previously, please try using SonicWall Mobile Connect as a platform for VPN. This can indeed help you figure out the adapter issues because using SonicWall Mobile Connect, the VPN traffic takes a different adapter path. Compare SonicWall Remote Access Options | SonicGuard.com Which SSL-VPN Solution is Right for me? Compare SonicWall Remote Access Options. Choosing between SSL-VPN on a SonicWall UTM Device versus a dedicated SSL-VPN appliance for SMB or for Enterprise can be a tough decision. Use the feature comparison chart below to find the right SSL-VPN Solution for your needs: [SOLVED] SonicWALL SSL VPN clients traffic usage - Spiceworks Mar 31, 2020 SSL VPN — SonicWall Community