Connected but can't reach company resources? Check split DNS and routing
If the VPN shows connected but you can't reach internal servers or shares, the tunnel is up but DNS requests or the corporate subnet aren't being routed through it. Check your VPN client for a "split DNS" or "DNS leak protection" setting, or ask IT for your company's internal DNS server IP. Then confirm the corporate subnet actually has a route through the VPN interface:
# Look for the corporate subnet routed via tun0/wg0
ip route
# Check which DNS servers are actually in use
resolvectl status