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Wireless Reviews

Features

The 818DRU's feature set is the same as TEW-812DRU V2, using the same spiffed-up admin GUI. The Status page you land at upon login is shown below. You can't click on anything in the right side; all menu selection is done via the left-side menu bar.

TRENDnet TEW-818DRU Status

TRENDnet TEW-818DRU Status

The 812DRU V1 review covers the feature set nicely, so won't be repeated here. For more info, use the 812DRU emulator and download the 818DRU user manual.

Storage Performance

Windows filecopy tests were run using the standard NAS testbed connected to a router Gigabit LAN port and the standard USB drive formatted in FAT32 and NTFS [NAS test details]. Tests were run connected with the USB drive connected to both the USB 2.0 and USB 3.0 ports.

Table 2 summarizes USB 2.0 performance and includes the 818DRU's AC1900 competitors. Read performance has improved from the 812DRU V2, but write performance has stayed roughly the same. At any rate, it's clear the TRENDnet is no match in overall USB 2.0 performance for the other AC1900 routers.

  TRENDnet TEW-818DRU Linksys EA6900 NETGEAR R7000 ASUS RT-AC68U
Processor Broadcom BCM4708A Broadcom BCM4708A Broadcom BCM4709A Broadcom BCM4708A
FAT32 Write (MBytes/s) 4.1 14.5 24.8 11.8
FAT32 Read (MBytes/s) 24.0 21.0 27.8 24.0
NTFS Write (MBytes/s) 6.3 17.2 27.9 23.7
NTFS Read (MBytes/s) 17.4 21.2 27.9 24.2
Table 2: File copy throughput - USB 2.0 (MBytes/sec)

For USB 3.0 results, Table 3 shows the same write weakness for both FAT32 and NTFS formats. The bottom line is that the NETGEAR R7000 remains king of the storage performance hill for this group of AC1900 routers.

  TRENDnet TEW-818DRU Linksys EA6900 NETGEAR R7000 ASUS RT-AC68U
Processor Broadcom BCM4708A Broadcom BCM4708A Broadcom BCM4709A Broadcom BCM4708A
FAT32 Write (MBytes/s) 3.6 15.6 33.4 11.7*
FAT32 Read (MBytes/s) 26.0 22.1 57.4 21.6*
NTFS Write (MBytes/s) 4.6 17.4 36.8 23.6*
NTFS Read (MBytes/s) 19.0 22.4 57.7 24.3*
Table 3: File copy throughput - USB 3.0 (MBytes/sec)
* = "Reducing USB 3.0 interference" setting enabled

Routing Performance

Routing performance for the 818DRU using our standard test method is summarized in Table 4 beside the 812DRU V2's numbers. The 818DRU appears to get a little boost from the upgraded Broadcom processor.

Test Description TEW-818DRU TEW-812DRU V2
WAN - LAN Throughput - (Mbps) 575 563
LAN - WAN Throughput - (Mbps) 790 712
Total Simultaneous Throughput - (Mbps) 864 722
Maximum Simultaneous Connections 14,974 14,989
Firmware Version 1.0.7.0
2.0.2.0
Table 4: Routing throughput

The IxChariot composite plot for the unidirectional tests shows steady uplink throughput, but higher variation for downlink.

TRENDnet TEW-818DRU unidirectional routing throughput

TRENDnet TEW-818DRU unidirectional routing throughput

The simultaneous up and downlink plot below shows a preference for uplink traffic when heavily loaded.

TRENDnet TEW-818DRU bidirectional routing throughput

TRENDnet TEW-818DRU bidirectional routing throughput

Wireless Performance

This product has been retested. See this article for the results.

The 818DRU is not Wi-Fi Certified. It defaulted to Auto channel on both bands and 20 MHz B/W mode on 2.4 GHz and 80 MHz mode on 5 GHz upon power-up. 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.

The WPS test failed to prompt to initiate either a WPS PIN or pushbutton WPS session when I selected either of the SSIDs with a Win 7 notebook. I confirmed that WPS was enabled on both radios by default, with a "Processing WPS start" indication shown for WPS status.

I then ran 40 MHz Coexistence and Fat channel intolerant tests and both failed with the router staying in 40 MHz bandwidth mode in both cases.

For throughput testing, all tests were run using our standard wireless test process with 1.0.7.0 version firmware loaded. The router was first reset to factory defaults, then Channel 6 and 20 MHz B/W mode was set for 2.4 GHz and Channel 153 and 80 MHz B/W mode was set for 5 GHz. The router was positioned 8" from the chamber antennas in all test positions. The 0° position had the front side of the router facing the chamber antennas.

I continue to use the ASUS PCE-AC66 AC1750 as my standard test client. So the results for this and all other AC1900 routers tested to date do not reflect the higher throughput available in 2.4 GHz had I used an AC1900 client.

The Benchmark Summary below shows the average of throughput measurements made in all test locations. The results are undistinguished and land the 818DRU at the bottom of the AC1900 router ranking.

Benchmark Summary

Benchmark Summary

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