NETGEAR's advice for Ethernet slowness follows its speed troubleshooting. Update the router firmware, power cycle the modem and router, then test with a computer connected by Ethernet directly to the router and then directly to the modem. If the modem test is slow, the fault lies with the provider or line. If the router test is slower, try another Ethernet cable and another LAN port, and make sure the cable is Cat5e or better, since old or damaged cable limits speed.
The checks in more detail
If a wired satellite is slow, NETGEAR notes that with wired backhaul the satellite does not depend on wifi, so the cable and port are the suspects. A device with a 100 Mbps adapter will cap at 100 Mbps whatever the router. On the Orbi 970 the 10 Gbps internet port only delivers that speed with matching cables and devices.
Do not confuse Ethernet backhaul with the internet port. If the router reboots itself, address that separately. If the problem is on one device only, test another device on the same cable and port. Tag both ends of each cable with the router port it uses. One run may be slow while another is fine; cheap flat cables and old leftovers are the usual offenders. If you are cabling a house, test each run end to end before the wall is closed; a run that links at only 100 Mbps costs as much to install as a good one and is hard to redo.
A wired satellite needs a good cable of its own back to the router, and a wall plate in the run can add a poor joint that a direct patch cable avoids.
Differential
Likely causes of “NETGEAR Orbi mesh wifi Ethernet link is limited to 100 Mbps or disconnects”, and how to tell them apart
- 1
An old or damaged cable
What separates it The wired link is slow or drops because the cable is old or damaged
How to confirm Use a Cat5e or better cable, and replace any cable that is old or damaged
- 2
A 100 Mbps adapter
What separates it The speed stops near 100 Mbps because the device's adapter only runs at that rate
How to confirm Look at the device's Ethernet adapter and use one that supports gigabit
- 3
A bad port
What separates it One port is slow because that port on the router is faulty
How to confirm Move to another LAN port on the router and see whether speed improves
- 4
A provider fault
What separates it The speed is slow even when a computer is plugged straight into the modem
How to confirm Call the provider, since the slow speed comes from the line and not from your Orbi
- 5
A satellite backhaul problem
What separates it The devices behind a satellite are slow because of a problem with its backhaul
How to confirm Check the cable and the port for the satellite's wired backhaul, and swap them if needed
Before you touch a setting
Record this first — changing settings destroys the evidence
- The grade of Ethernet cable in use
- Which port on the router you have used
- Speed measured at the modem and at the router
- The speed the device's Ethernet adapter supports
Try in this order
0 of 7 completedUpdate firmware
ReversibleUpdate the firmware on the router first, since NETGEAR advises that as the first step.
Power cycle
ReversiblePower cycle the modem and the router, and wait for both to finish starting up.
Test at the modem
ReversibleConnect a computer directly to the modem to see what speed you actually get.
Test at the router
ReversibleRepeat the test at the router with the same computer and compare.
Swap cable and port
ReversibleChange the cable and the port one at a time to isolate the faulty one.
Check the adapter
ReversibleCheck the device's adapter, since a 100 Mbps adapter caps the link.
Check the satellite backhaul
ReversibleCheck the satellite backhaul, meaning the cable and the port that connect it to the router.
Model-specific
What is true of this model and not of its siblings
- 970
- The Orbi 970 has a 10 Gbps internet port.
- 850
- The Orbi 850 uses gigabit ports.
- Other models this page answers
- These steps also fit the Orbi 750 Series mesh.
Stop boundary
When this stops being a self-service repair
- !A known-good cable and port that still cap the speed are a matter for NETGEAR support
- !A slow modem is a call to the provider
- !When one device is slow, inspect its adapter
Evidence ledger
Sources behind this answer
Firmware, power cycle and direct modem test.
Firmware, outlet, adapter and reset.
Table height, distance and sync colors.
Power LED and ring LED colors.
The company and its products.
Exact questions
Common questions
Why is my Ethernet only 100 Mbps?+
A 100 Mbps adapter, cable or port limits the link, so check all three.
What cable should I use?+
Use a Cat5e cable or better, since older cables cannot carry gigabit speeds reliably.
Does the Orbi 970 have 10 Gbps?+
The Orbi 970 has a 10 Gbps internet port, so a fast link is possible with the right cable.
Does wired backhaul use wifi?+
No, a wired backhaul does not use wifi, and it carries the traffic over the cable.
Should I swap ports?+
Yes, swap ports, since a bad port on the router can slow one link on its own.
Do firmware updates help?+
NETGEAR says to update the firmware first, since updates often improve performance.
Should I power cycle?+
Yes, power cycle the modem and the router, and wait for both to finish starting up.
Can the provider be slow?+
Yes, the provider can be slow, so test at the modem with a computer connected directly.