I’ve had a wAP AC for about a week, and I can’t figure out why the 5Ghz speed is so low. I’m testing from 2 different 2x2 laptops, iperf3 to a hardwired, gigabit server. When I first had things set up, I could see ~175Mbps during normal use, and up to ~240Mbps when I had the laptop right next to the AP. But now, all of a sudden, rates have dropped. First it seemed capped at 100Mbps, but for the past 2 days, I’m seeing on average 40Mbps. Moving it closer doesn’t seem to add much anymore. Best I’ve gotten holding right next to the AP in the past 2 days is 71Mbps. I’m running the wAP AC in CPE, and using CAPsMAN on a hEX. I followed an online tutorial, so nearly everything is set as default or left blank. I’ve rebooted a few times, and tried changing a few settings but usually those tweeks killed the connection, and I had to reconnect on 2.4 to revert my change. I’m not sure where to start, so looking for advise on how to troubleshoot/improve my speed. Thanks.
In the CAPsMAN Channel config, I changed 5ghz-a/n/ac to 5ghz-onlyac and now I am back to my 130Mbps. Seems like having all modes on, my laptop was dropping from AC to N or something like that, and I can now force it to always connect AC this way (and I have the 2.4 channel set up for devices that aren’t AC). But even moving close to laptop, I’m not seeing higher than 240Gbps. Is that the best this can do, or are there other ways to tweek better speeds? I’ve seen a few posts claiming 300+ (and one 500+, but that may have been a cAP).
I played around with the Control Channel Width and Extension Channel settings, and saw a drop in speed, which has not returned, even with removing those settings. I’ve rebooted both router and AP. Back in the 40-50 range again.Got 93 just now when I moved next to the AP. Maybe the onlyAC setting wasn’t the fix? Maybe I’ll stop twiddling knobs, and wait for advice.
I don’t have a wAP AC in hand, but I can share my experience with you.
If you have only one or two AP, don’t use CAPsMAN, due to it offers less options for tuning. I was facing low speed of wifi ever since I moved to MikroTik solution, and did purchased UAP-AC-LR and nanoHD to replace my hAP AC2 + cAP AC, but Ubiquiti seems struggle at recent firmware too so I bought Audience to replace my cAP AC and put my Ubiquiti units back to box.
I’ve spent so many hours to try to maximize the speed by adjusting each options, here’s what I’ve found:
Set your rates to 12mbps and 24mbps for basic rate, and 12mbps~54mbps for supported rates.
Set AMSDU to 3839 for both limit and threshold.
Disable WPS and Adaptive Noise Immunity.
Installation and distance set to indoor.
Lower the tx power to 2dBm lower than your device capable.
Set Hw. Fragmentation Threshold to 2346.
Enable WMM Support.
5GHz A/N/AC and 20/40/80MHz Ceee.
Don’t use channel 149/153 if you have many Apple devices.
AMPDU select all 0~7 and set DSCP to high 3 bits (try to search WMM in this forum and you will see how)
This is not final as I’m still trying to get the best out of it, currently those options mentioned above gave me the best and stable Wi-Fi speed I’ve ever seen in MikroTik devices, good luck bro.
Got around to moving it back into WISP AP mode. Had some problems getting in, until I remembered you could only access from the wifi interface. Not through the LAN since it comes set up as a router. Changed it to bridge mode, removed all firewall/nat rules, DHCP, etc. Still can’t access it via IP when connected over the LAN, but can connect via mac. That is frustrating. Messed around a bit with the settings, but still couldn’t get over 280Mbps, even right next to the unit. I think I’ve had enough and will likely return it as my EAP245 came earlier in the week and that seems to have better speeds (less knobs to turn though). Still was hoping to find some device to get me 400+, but I’m luck if I break 300 on either of the 2 I’ve tried. I also wish I could have found a guide to set up the wAP as a LAN backhaul AP. Seems fairly basic need, but I’m still not sure I have it set up optimally (it does work, except for IP UI access over LAN instead of WLAN). I might also have too many competing neighbor networks living in urban, high density housing, so noise/interference may be an issue.