GL.iNet GL-A1300, GL-AX1800 and Brume 2: Dual Ethernet WAN Feature Caveats

GL.iNet Slate Plus, Flint GL-AX1800 and Brume 2; distinguish port count from supported WAN reassignment.

Check the exact device

Menu names and behavior can vary by US hardware revision and firmware. This guide was researched from official material, not tested on a physical router.

Applies to: GL.iNet Slate Plus, Flint GL-AX1800 and Brume 2; distinguish port count from supported WAN reassignment.

Official evidence: GL.iNet dual Ethernet WAN support list, GL.iNet Slate Plus GL-A1300, GL.iNet Flint GL-AX1800, GL.iNet Brume 2 GL-MT2500/MT2500A.

Before you begin

Verify the vendor-supported Dual-Ethernet WAN model list and firmware before expecting a LAN port to become a second WAN.
Save working WAN settings and keep a local wired administrative connection.

What to check / do

Count the physical Ethernet ports, but do not infer that a second WAN mode exists on every model.
The vendor Dual Ethernet WAN documentation excludes these specific devices from its supported-reassignment list.
If the goal is WAN failover, distinguish supported alternative uplinks (if any) from physically repurposing a LAN port.
Use the official product model manual for any available WAN route/mode; otherwise present the feature as unsupported rather than inventing a hidden toggle.

Verify the result

An actual supported uplink is shown in the local WAN status page.
The original working Internet connection remains available after testing.

If the result is not what you expected

Stop changing settings if you cannot identify the model or a reliable administrator recovery path.
Use the exact manufacturer support link below and quote your hardware label, firmware version, and what changed.

Restore / undo

Restore the prior WAN role and cable order; do not factory reset a working router to obtain an officially unsupported WAN assignment.

Evidence, limits and editorial disclosure

Technical claims are based on the linked manufacturer or ISP page as checked on 2026-11-01. This is an independent explanatory checklist, not a claim that RouterFix tested the device. Hardware revision, regional SKU and firmware menus may differ. Unverified functions must remain unknown.

Referenced models

GL.iNet Slate Plus (GL-A1300)Model reference GL.iNet Flint (GL-AX1800)Model reference GL.iNet Brume 2 (GL-MT2500)Model reference

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