2 Servers on Single Subnet Detected as Multiple Subnet during Pool Setup

Hi,

We have two servers on a /24 subnet, x.x.x.11 the primary and x.x.x.12 installed as a scalability engine.

When trying to set up a HA pool, it's asking me for a Virtual Host Name and DNS Settings, rather than a VIP. I believe this is the setup when SW detects a multiple subnet setup, is that right?

Any ideas why it may be detecting this? Both servers are sat in Azure.