Why this answer matters
The RS300 mixes multi-gig and Gigabit LAN interfaces. Plugging into the wrong physical port can create a hard wired bottleneck that no Wi-Fi or DNS change will fix.
2 requirements3 verification steps2 primary sources
Requirements
What has to be true
- Use one of the two manufacturer-listed 2.5-Gb/s LAN ports for a 2.5GbE client.
- Use appropriate cabling and a client NIC that supports 2.5GbE.
Verify it yourself
Use this test sequence
Change one variable at a time so you know which requirement made the difference.
- 1
Check the physical port label and negotiated link speed in the client OS.
- 2
Move the same client/cable between a 1GbE and 2.5GbE LAN port to isolate the interface ceiling.
- 3
Use latency/jitter tests separately from throughput; low latency does not prove multi-gig link speed.
Limits
What this answer does not prove
- NETGEAR's up-to-9.3-Gb/s Wi-Fi figure is an aggregate product-class specification, not one device's guaranteed throughput.
- Internet speed also depends on the WAN service and upstream equipment.
Relevant DeviceOK checks
Test the part you can observe
Browser Online Status TestCheck the browser online state, available connection hints, and a short round trip to DeviceOK.
→Browser Latency TestMeasure several browser-to-DeviceOK request round trips as a quick connection responsiveness check.
→Browser Network Timing Variation CheckRun repeated HTTP round trips to DeviceOK and show timing variation between samples.
→Network Information CheckRead browser-exposed connection type, estimated round-trip time, downlink, Save-Data state, and online status where supported.
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