The WXR-1900DHP shares a largely identical feature set as the WZR-1750DHP. The image below shows the landing page for the WXR-9000DHP. For a more in-depth review of the features, read Scott's full review of the features.
Buffalo WXR-1900DHP landing page
One new feature addition found in the WXR-1900DHP is a VPN server. You can choose either PPTP or L2TP/IPsec. Here's a screenshot from the settings page for VPN server. Also note the context-sensitive help on the right side of the screen. We didn't test this feature.
Buffalo WXR-1900DHP VPN configuration settings
We recently added storage performance to the Router Charts and documented the process that we've been using for quite awhile. Buffalo supports only FAT32 format for attached USB drives, so that's all we tested. We were able to get results using the USB 2.0 port, but not USB 3.0. Each time we tried to run the test, the mapped drive disconnected during write tests.
Using our new charts and filtering for AC1900 products tested with the current test process shows the WXR-1900DHP third from the bottom for writes and fourth from the bottom for reads. At just shy of 19 MB/s, the Buffalo has sub-par throughput, particularly in light of its dual-core BCM4709 processor.
AC1900 class Storage Performance
We tested using our current Router test process with 2.30 firmware. The table below compares routing performance to the three other AC1900 class routers used throughout this review.
|Test Description||Buffalo WXR-1900DHP||Linksys EA6900||NETGEAR R7000||TP-LINK Archer C9|
|WAN - LAN||767.4 Mbps||923.6 Mbps||931.4 Mbps||756.0 Mbps|
|LAN - WAN||790.8 Mbps||844.2 Mbps||941.7 Mbps||755.9 Mbps|
|Total Simultaneous||1329 Mbps||1135.1 Mbps||1378.3 Mbps||1189.7 Mbps|
|Maximum Simultaneous Connections||32,152||15,833||38,793||7,820|
|Firmware Version||V2.30||V184.108.40.206232||V220.127.116.11||3.15.27 Build 20141015 Rel.38077n|
Comparative routing performance
Unidirectional throughput between 750 and 800 Mbps is lower than Linksys and NETGEAR's and about the same as TP-LINK. Simultaneous up/downlink throughput of 1329 Mbps is right behind NETGEAR's 1378. The differences aren't major: any of these routers has more than enough throughput for most users, at least those in the U.S. Due to limitations of our test process, we consider anything over 20,000 simultaneous connections to be the same. At 32,152, the Buffalo falls into that category.
The composite unidirectional up and downlink IxChariot plot below shows the usual pattern of frequent excursions up above 900 Mbps and preference for uplink traffic. The latter is consistent enough that it signals more a reflection of our test process than actual router operation.
Buffalo WXR-1900DHP unidirectional throughput
The simultaneous uplink/downlink test plot shows the usual battling in the first 20 seconds that is also a hallmark of our test process method. Things settle down after that to fairly stable throughput.