> ## Documentation Index
> Fetch the complete documentation index at: https://docs.megaport.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Troubleshooting MVE Connectivity to SD-WAN Management

> This help topic describes troubleshooting steps to identify and solve problems when an MVE has trouble connecting to SD-WAN management components.

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Step through these troubleshooting actions to review, investigate, and confirm the SD-WAN configuration and components.

## Troubleshooting actions

| **Action**                                                                                                                              | **Steps**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
| :-------------------------------------------------------------------------------------------------------------------------------------- | :------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| **Verify MVE/SD-WAN configurations**                                                                                                    | Confirm this information:<br /><ul><li>Ensure SD-WAN login credentials are accurate.</li><li>Ensure the MVE has has the correct license and template/workflow.</li><li>Verify the instance size and software version.</li><li>Verify the MVE interface status, including configuration values for IP addresses and subnets, VLAN, bandwidth, and ASNs.</li><li>For gateway and interconnect connectivity, check <Gloss term="BFD" anchor="bfd" /> sessions, bandwidth, BGP status, and BGP neighbor status.</li></ul>For more information about Megaport SD-WAN providers, see [MVE Overview](/mve).          |
| **Verify MVE public IP address and gateway IP address in <Gloss term="Megaport Internet" anchor="mega-internet" /> connection details** | Each MVE is assigned a public IP address by a Megaport configured DHCP server. To check the assigned IP address: <br /><ol><li>From the Megaport Portal, go to the **Services** page and locate your target MVE.</li><li>Click the gear icon next to the Megaport Internet connection and locate the public IP address assigned to the MVE.</li></ol>                                                                                                                                                                                                                                                         |
| **Ping tests from MVE**                                                                                                                 | Run **<Gloss term="ping" anchor="ping" />** tests from MVE to the following destinations: <ul> <li> MVE default gateway IP address </li><li> SD-WAN management server/controller</li><li> Public IP (for example, ns1.google.com, 8.8.8.8)</li></ul> A **ping** test transmits data packets to a specific IP address and either confirms or denies connectivity between IP-networked devices. In the case of confirmation, a **ping** test shows the latency (the response time) of the connection. <br /><br />If you need to contact Support about this issue, provide the results from the **ping** tests. |

## Next steps

If the troubleshooting actions do not resolve your issue, contact support.
Before contacting support for assistance, collect the following information.

* Provide details of all troubleshooting steps.\
  For example, if you set up loops, note where they were located and their direction. If you ran **ping** tests, provide the output.

<Note>
  For more information about when a field service technician is needed onsite at the data center, see [Customer Field Services](/finance/customer-field-services).
</Note>