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Wireless Reviews

Wireless Performance

Like the ESR1200, the ESR1750 is not Wi-Fi Certified. It defaulted to Auto channel mode on both 2.4 and 5 GHz radios upon power-up. The 2.4 GHz radio defaulted to Auto 20/40 MHz Channel width, while the 5 GHz radio defaulted to 80 MHz. The router comes with different 2.4 and 5 GHz SSIDs set, so you'll be able to connect to your desired band without having to change router settings.

WPS is enabled on both bands by default. Our Win 7 test client did prompt for a pushbutton session on both bands. However, it only completed a WPA2/AES connection on 2.4 GHz. On 5GHz, the WPS session would not start after pushing the button.

Both 40 MHz Coexistence and Fat channel intolerant tests failed, with the ESR1750 continuing to link at 40 MHz bandwidth rates in both cases instead of falling back to lower 20 MHz rates.

For throughput testing, all tests were run using our standard wireless test process and 1.1.0 (upgraded from 1.0.1) version firmware loaded. The router was first reset to factory defaults and Channel 6 was set for 2.4 GHz and Channel 153 for 5 GHz. 20 MHz B/W mode was set for 2.4 GHz and 5 GHz was set in 80 MHz bandwidth mode. The closest surface of the router was positioned 8" from the chamber antennas in 0° and 180° test positions. The 0° position had the front of the router facing the chamber antennas.

The Benchmark Summary below shows the average of throughput measurements made in all test locations.

EnGenius ESR1750 Benchmark Summary

EnGenius ESR1750 Benchmark Summary

To date, we have tested 11 AC1750 class routers. For 2.4 GHz average downlink, the ESR1750's 51.8 Mbps landed it in last place as compared to the top ranking Buffalo WZR-1750DHP at 90.8 Mbps. Similarly, for 2.4 GHz average uplink, the ESR also placed last with 55 Mbps. The top-ranking 2.4 GHz average uplink winner was the ASUS RT-AC66U at 95.3 Mbps.

For the 5 GHz tests, the ESR1750 also turned in poor average performance landing it at 10th place for both tests. In each case the 5 GHz average performance was slightly above 50% of the top-performing routers.

The Throughput vs. Attenuation plots provide a better idea about how a router is going to perform throughout its entire operating range. Tests are run with 3dB of attenuation added for each data point. More attenuation simulates more distance from the router. Routers performing well with higher attenuation are more likely to provide better coverage for your environment.

For these tests, I decided that it would be interesting to compare the ESR1750 with its AC1200 class ESR1200 sibling as well as the ASUS RT-66U and the TP-Link Archer C7 - both top-ranking AC1750 class routers.

For the 2.4 GHz downlink test, the ESR1750 actually started out with lower performance than the ESR1200 at 0dB of attenuation. From 3dB to 21 dB, it tracked pretty well with the other AC1750 routers. But at 24 dB, it started a steep dropoff to 39 dB, where it actually dropped below the ESR1200. Both EnGenius devices lost their connection at 51 dB with only the ASUS finishing the test at 63 dB of attenuation.

2.4 GHz Downlink Throughput vs. Attenuation

2.4 GHz Downlink Throughput vs. Attenuation

The 2.4 GHz uplink tests showed that starting at only 12 db of attenuation, performance started to drop quickly. At 18 dB, it actually dropped below the ESR1200, as well as the other two devices. It does look like EnGenius reworked their 2.4 GHz drivers, however. The ESR1750 does not show with extreme variations seen in the ESR1200. At only 33 dB of attenuation, the ESR1750 dropped below the other three and remained there until it lost connection at 51 dB. At the end of the test (63 dB), the ASUS was still getting 28 Mbps uplink throughput.

2.4 GHz Uplink Throughput vs. Attenuation

2.4 GHz Uplink Throughput vs. Attenuation

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