Mikrotik hAP ac Wireless Questions

Hello, I have one of these routers: https://routerboard.com/RB962UiGS-5HacT2HnT and am using it as my Wireless AC AP for two dedicated devices in my house.

I’ve been testing copying data, to try and get a feel for the speeds. I’m a bit of a novice at this, so my testing methods may be rudimentary. Anyway, whilst copying a file from my local server I get a sort of ‘rollercoaster’ effect. Where the throughput continually peaks and dips, ranging from 51 MB/s at the peak down to 20 MB/s at the dips. It just continually does this up and down the entire time. Looking at the Mikrotik Resources screen, the CPU load only ever tops out at around 40%. I’m wondering what precisely I’m doing wrong and how to get more reasonable speeds, I imagine it must be some sort of configuration since I know the router has 3x3 chains and in theory at least should be capable of much higher speeds.

I’ve attached a screengrab of what I see from the Windows transfer, where you can see the rollercoaster effect (in wired mode this same file copies at 113 MB/s). Additionally I’ve included the Wireless configuration - although disclaimer: I’m not 100% sure how to output the info people may find useful, so I’ve done a print of the wireless menu from WinBox:

name=“wireless-hi” mtu=1500 l2mtu=1600 mac-address=E4:8D:8C:6B:C9:28 arp=enabled interface-type=Atheros AR9888 mode=ap-bridge ssid=“DXXHI” frequency=auto band=5gh scan-list=default wireless-protocol=802.11 vlan-mode=no-tag vlan-id=1 wds-mode=disabled wds-default-bridge=none wds-ignore-ssid=no bridge-mode=enabled default-aut default-ap-tx-limit=0 default-client-tx-limit=0 hide-ssid=no security-profile=main 5GHz compression=no

As well as an export:

default-name=wlan2 ] band=5ghz-onlyac channel-width=20/40/80mhz-eeCe comment=“wireless 5GHz” country=australia disabled=no distance=indoors frequency=auto frequency-mode=regulatory-domain mode=\ ap-bridge name=wireless-hi security-profile=“main 5GHz” ssid=DXXHI wireless-protocol=802.11 wps-mode=disabled

I was a bit confused about how to set the appropriate channel/frequency because all the listed ones appear to be 20 MHz only, at least from what I found on WikiPedia where it was listing them. So I don’t know how to get 40 MHz or 80 MHz wide. Anyway, if anyone has some information, advice or suggestions I’m all ears. Thanks!
2017-01-06 21_53_51-.png

Check wireless card driver in your computer. Is up to date?

What wireless card model you are using?

what routeros version ?

Yes it is, I got the driver just yesterday from the ASUS website and installed it.

Hi kirstaps,

The RouterOS version is v6.34.2 Stable. The Wireless card is one that came with my motherboard, you can see it pictured here https://www.asus.com/au/Motherboards/Z170-DELUXE/overview/ (the small black adapter with the 3 cables going to the motherboard). Its a 3x3 802.11ac adapter. I am uncertain of the specifics of the radios etc however, and some googling doesn’t appear to turn them up. I’ll keep looking though, it is rated very well and is one of the chief reasons I went with this board.

Attached a shot of the wireless status.

EDIT: Looked in device manager and the wireless adapter is listed as Broadcom 802.11ac Network Adapter, if that helps at all.
wireless.png

Please upgrade to latest 6.38 and reset to default router.
And try again.

Do you have option to test through some traffic generation software like iperf3 ?

OK let me attempt to upgrade. I will probably have to tackle that tomorrow as it is already late here, with respects to iperf3 I’m not sure what that is, but I will search for it and see what is involved. I’m on a Windows 10 desktop, so any other options let me know. Thanks for the help so far! Stay tuned.

EDIT: Just FYI I completed the upgrade and am on 6.38 Stable now, but the test yielded the same results. If I reset the router (I assume you mean factory reset) should I setup the WiFi with any particular defaults?

Yes just factory rest, default settings should give bet speed.
You can try different 5ghz frequency, taht all.

Looks like that MB is using BCM4360 wireless chip.

You can try this tool http://www.mikrotik.com/download/btest.exe it is not ideal but it works.
on your PC with wireless on then through router to PC with 1gbit ethernet.

btest.exe for windows.. awesome. Didn’t know about that. Thanks for the heads up. Just learnt something new.