You have an Azure subscription that contains a resource group named RG1. RG1 contains the resources shown in the following table.

Your on-premises network has an IP address range of 192.168.10.0/24. Users on Host1 can successfully connect to the resources on the network.

You add a new on-premises network that has an IP address range of 192.168.11.0/24 and contains a subnet. The subnet contains an application server named App1.

Users report that Host1 cannot connect to App1.

You need to ensure that the users on Host1 can access App1.

What should you modify?