The D-Link DIR868L is a dual-band 802.11ac router with a theoretical top data transfer speed of 1,300Mbit/s, four Gigabit Ethernet ports and a USB3 port. Youll need to use an 802.11ac-compatible device in order to benefit from the DIR-868Ls highest data transfer speeds, but the DIR-868L will also work with older 802.11n, g, b and a devices. You can even administer it remotely. Setting up the DIR-868L is a doddle thanks to its web interfaces wizard, which walks you through the process of configuring the DIR-868L for internet access and setting up wireless security. As the DIR-868L is a router only youll need to plug it into a modem to access the internet. Given the ease with which the wizard guides you through setup, its a shame the rest of the DIR-868Ls web interface is confusingly laid out. You have four tabs at the top of the screen and a series of sub-categories to the left, but this isnt initially obvious and only becomes certain once youve spent much time searching for various options. The fact weve used this friendly of web interface on other D-Link routers and yet found it confusing is testament to the poor layout. However, the web interface does provide all the options you expect to see on a high-end router, such as Dynamic DNS, port forwarding and even website filtering so you can control the websites users can and cant access. The free QRS Mobile app available for iOS and Android devices makes setting up the DIR-868L even easier, with certain, uncluttered screens and helpful diagrams guiding you through the process. Thanks to the QRS Mobile app you dont even need to switch on your PC or laptop to configure the DIR-868L, making the router much more accessible to those who arent familiar with such devices. WI-FI PERFORMANCE To test the 802.11ac performance of the DIR-868L we used the D-Link DWA-182 802.11ac-compatible Wi-Fi adaptor with our test laptop. 802.11ac only works on the 5GHz band, so we connected to the DIR-868L on this band and ran our wireless test. At one and 10 metres the DIR-868L achieved an average data transfer rate of 139.1Mbit/s, but failed the test at 25 metres. The one and 10 metre speeds are fairly impressive, but one of the advantages of the 802.11ac standard is greater Wi-Fi range, which makes the failure at 25 metres disappointing. We also connected to the DIR-868L on the 5GHz band with our laptops built-in Wi-Fi adaptor. As its an 802.11n adaptor it couldnt match the higher speeds of the DWA-182, but yet provided 87Mbit/s at one metre and 90.1Mbit/s at 10 metres. These speeds arent too bad, but the test failed at 25 metres once again. The DIR-868Ls 2.4GHz performance was similarly good at short range but poorer at long range. With the DWA-182 adaptor we saw data transfer speeds of 64.5Mbit/s at one metre and 52.4Mbit/s at 10 metres, with the test failing at 25 metres. When we used our test laptops built-in Wi-Fi adaptor we achieved data transfer speeds of 41.9Mbit/s at one metre, 38.7Mbit/s at 10 metres and 5.4Mbit/s at 25 metres.