Regarding NTLMv2 vs NTLMv1 when using SSO

Feature/Application:

NTLMv2 does not support RADIUS or MS-CHAPv2.  For this reason, when attempting to implement SSO using NTLM, it is recommended to use NTLMv1.  More details can be found on https://www.sonicwall.com/en-us/support/knowledge-base/170504434489882.

It is of course possible to use alternative methods of connecting non-windows devices that might have domain users to the network using their credentials if use of NTLMv1 is not desired, such as having them log directly into the firewall, or accessing a wireless network that relays their authentication information directly to radius, or even use a GroupVPN or SSLPVN policy from a different zone to access the LAN zone.