Your company has four branch offices that each connect to an Azure VPN gateway named GW1 using Site-to-Site VPNs; each branch router also provides internet access. Users in Branch1 can reach internet sites but cannot access Azure resources. You must restore Branch1 users' access to Azure while minimizing user downtime and administrative effort. What should you do first?

Resetting Connection1 is the most targeted and least disruptive first step. This action clears the control plane of the specific VPN tunnel between Branch1 and GW1, often resolving transient issues without affecting other connections or the gateway itself. Recreating LNG1 (Local Network Gateway) would require reconfiguring the entire site-to-site VPN for Branch1, causing significant downtime. Resetting RTR1 (Branch1's router) would disrupt internet access and all other local network services for Branch1 users. Resetting GW1 would affect all four branch offices, causing widespread service interruption, which violates the requirement to minimize user downtime.