Merge pull request #123524 from azarboon/patch-159

Update virtual-network-troubleshoot-connectivity-problem-between-vms.md

Author: Court72

articles/virtual-network/virtual-network-troubleshoot-connectivity-problem-between-vms.md

@@ -56,7 +56,7 @@ For more information, see [Add network interfaces to or remove from virtual mach
 
 ### Step 2: Check whether network traffic is blocked by NSG or UDR
 
-Use [Network Watcher IP Flow Verify](../network-watcher/network-watcher-ip-flow-verify-overview.md) and [Connection troubleshoot](../network-watcher/network-watcher-connectivity-overview.md) to determine whether there's a Network Security Group (NSG) or User-Defined Route (UDR) that is interfering with traffic flow.
+Use [Network Watcher IP Flow Verify](../network-watcher/network-watcher-ip-flow-verify-overview.md) and [Connection troubleshoot](../network-watcher/network-watcher-connectivity-overview.md) to determine whether there's a Network Security Group (NSG) or User-Defined Route (UDR) that is interfering with traffic flow. You may need to add inbound rules on both NSGs. The rules must be at the subnet level and the virtual machine's interface level.
 
 ### Step 3: Check whether network traffic is blocked by VM firewall
 
@@ -103,4 +103,4 @@ If you can't connect to a VM network share, the problem may be caused by unavail
 Use [Network Watcher IP Flow Verify](../network-watcher/network-watcher-ip-flow-verify-overview.md) and [NSG Flow Logging](../network-watcher/network-watcher-nsg-flow-logging-overview.md) to determine whether there's an NSG or UDR that is interfering with traffic flow. You can also verify your Inter-VNet configuration [here](https://support.microsoft.com/en-us/help/4032151/configuring-and-validating-vnet-or-vpn-connections).
 
 ### Need help? Contact support.
-If you still need help, [contact support](https://portal.azure.com/?#blade/Microsoft_Azure_Support/HelpAndSupportBlade) to get your issue resolved quickly.
+If you still need help, [contact support](https://portal.azure.com/?#blade/Microsoft_Azure_Support/HelpAndSupportBlade) to get your issue resolved quickly.