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Learn how to resolve throughput issues related to your MAC address. If your MAC address begins with a 4 or a 6, this could contribute to packet reordering over your Lumen service—which may cause slow speeds.

Learn about the differences between public and private IP addresses.

Using Control Center, you can submit configuration change requests for DNS changes, such as adding/removing/changing domains or zone records for both forward and reverse DNS, as well as requesting reverse delegation.

You can run two types of circuit tests for your Lumen services in Control Center: a non-intrusive, performance metric test and an intrusive test.

You can submit configuration change requests for Lumen IQ Networking and DIA services in Control Center. We complete most configuration requests in 24-48 hours.

You can submit a configuration change request for additional IP addresses for Lumen IQ® Networking products in Control Center.

In Control Center, you can run a non-intrusive performance metrics test if you're having trouble with a circuit to diagnose the problem. Depending on the results of the test, you can request an intrusive test to further diagnose the problem or open a repair ticket to request that Lumen resolve the issue. You must run this non-intrusive test on a circuit first and then you can request an intrusive test.

Use this guide to help you through your activation and to ensure you can begin using your new Lumen services as quickly as possible.

Lumen uses industry-standard testing to help ensure that your ethernet-enabled services perform correctly at turn-up and continue to meet your business needs. This article covers those testing methodologies.

Experiencing performance issues with your Lumen service? Try these tips to resolve poor performance.

Learn more about traceroutes and how it handles timeouts and unreachables in analyzing your network traffic.

Learn more about traceroute and how to read the output to help you analyze network traffic flow.

Learn when traceroute can mislead you in diagnosing network traffic issues.

As a foundation to using traceroute to diagnose issues with your network traffic flow, learn more about how traceroute works.

Learn more about traceroute and important function of IP routing; routing isn’t always symmetrical and, in the case of the Internet, it’s often asymmetrical.

Learn how traceroute can be helpful in diagnosing issues with your network traffic.

Traceroute is used by networking professionals to discover the path network traffic takes. Learn more about traceroute and how it can help you troubleshoot issues with your service.

Learn about the Lumen policy on border gateway protocol (BGP) prefix announcements for network services.

Learn about TCP windowing and how it relates to TCP performance over WAN connections.

If you have two, or more, redundant Lumen MPLS circuits, you can configure your router for failover. Doing this requires a one-time, configuration change, which you can do yourself.