Jarda already wrote that he is in contact with support. Thank you for that.
We have currently not seen any issues outside this Forum thread. It could be a combination of specific factors, this is why we ask you to contact MikroTik with details of your setup.
Thank normis for responding this thread.
I sent an e-mail to MikrtoTik Support and received reply saying that MikroTik did not have any problems with their hAP ac^2. After your Team Member had asked me to send more details with support file, I replied your Team with the support file and data. And there is no more reply received yet.
If there is no WiFi issue in hAP ac^2 when the products released to the market, how comes most of us are having WiFi problems. Also if MirkroTik does not experience or have any WiFi problems in hAP ac^2, please provide your setup to us such that we can follow. We need the help from MikroTik to resolve this issue as soon as possible.
YH
Can MT provide the following settings for the speed you have tested?
PC(iperf3) ↔ ether1 (hAP AC2) wlan <------eCee 5G--------> wlan (hAP AC2) ether1 ↔ PC(iperf3)
I can only reach 280Mbps. Is this normal?
ML
Thanks for responding, Normis!
If I read that other users don’t get responses, why should I open more tickets?
- I don’t want to slow down support, if they can’t catch up with the tickets already opened.
This question was asked multiple times in the forum and was also one of the main things i asked via twitter. Instead of just answering it directly, i just read “send us an email”.
We could do more investigations, share problems and answers with other users and summ stuff up for the support. Help us to help ourselves. If we do not succeed, we can still involve the support. This would be a big help and make life easier for everyone.
We’re interested in fast solutions. If support leaves some of us hanging, what else shall we do than complain and work together?
You mentioned that you can get 280Mbps! Is it stable at 280Mbps? I modified the above path by adding 1 and 2 to indicate the direction of flow. Which way (PC2->PC1 or PC1->PC2) did you get such a high throughput of 280Mbps?
For uploading test, I could get an average value of 363Mbps, as shown in Listing 2.
I was not able to obtain the results that you if the data path is from PC1 (wlan) to PC2 (lan), as show in the following listing.
Listing 1: Downloading test for hAP ac^2 5GHz performance with v6.43rc4 (PC1 to PC2)
[ ID] Interval Transfer Bandwidth Retr
[ 4] 0.00-300.00 sec 2.64 GBytes 75.6 Mbits/sec 5355 sender
[ 4] 0.00-300.00 sec 2.64 GBytes 75.5 Mbits/sec receiver
iperf Done.
Listing 2: Uploading Test for hAP ac^2 (LAN->WAN, PC2 to PC1) with v6.43rc4
[ ID] Interval Transfer Bandwidth
[ 4] 0.00-300.00 sec 12.7 GBytes 363 Mbits/sec sender
[ 4] 0.00-300.00 sec 12.7 GBytes 363 Mbits/sec receiver
iperf Done.
[/cod]
YH
The most recent RC v6.43rc4 does not resolve the WiFi issue of hAP ac^2. I did not put the log listing of the log and only a summary is provided below.
As you can in Listing 1, the average speed is still only 117Mbps and the value of Retr is 5577 (packet retry due to errors), which is the same as before.
Listing 1: 5GHz ac WiFi performance
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bandwidth Retr
[ 4] 0.00-300.00 sec 4.07 GBytes 117 Mbits/sec 5577 sender
[ 4] 0.00-300.00 sec 4.07 GBytes 117 Mbits/sec receiver
iperf Done.
I have made ticket (Ticket#2018041222000217) regarding wireless problems. Support asked me to send supout.rif file, and I have send them everything they asked in email. Since then (7 days ago), there is no answer. And their staff telling us that only handfull of users and only on this forum having problems? We all have almost the same problems, it just cant be coincidence. And I think that a lot of users just dont bother with their support, maybe even returning devices to distributors?
If Mikrotik need acces to my mikrotik/computer, I will provide them everything they need. Teamviewer, Splashtop, Supremo, Ammy admin, VNC, just name it. I can give you acces for 10 hours if they need it. Just say it or conatact me on any way (mail, PM or even phone). I am willing to participate in making a solution for this problem.
This sounds pretty good. I was able to reach just half of that.
what settings did you use for iperf? TCP/UDP? Windows size? Connection count?
Also, check if you have both chains enabled. I noticed that in default state (after reset without config) wlan has only chain0 enabled.
According to my information and to the messages posted in other threads, mikrotik is well aware about this problem and working on the solution. There was no estimation of the delivery date. There was no request for remote access, I guess it is not necessary, because developers probably found the errors in their code or adopted driver.
It would be nice if we can know a bit more details about the cause and about the roughly expected rc date. I know that standard answer is “when it will be then it will be”, but I am asking for expectations, not for promises.
I just registered to come here for the same wifi problem i have, I just got my hap ac2 today, quick setup and went online
and then I found that there’s WiFi poor performance issue
it was stock 6.3x stable version, so i even tried upgrade to 6.42.1 Stable, then 6.43rc4
no difference in poor wifi performance… but, only on certain devices
I’m still new to RouterOS, haven’t got to know how to do rifs for support team, I’ll tell what I tested
Here are my some quick basic tests (Wifi tests without security profile, just “Open”):
Internet speed: 35Mbps Down, 12Mbps Up
Ethernet direct cable to PC → 35/12Mbps (able to reach full internet speed)
Wifi 2.4Ghz to PC via TP Link Archer T14 → 3.6Mbps/1.4Mbps
Wifi 5Ghz to PC via TP Link Archer T14 -----> 1.2Mbps/ 12Mbps (upload only able to go high)
*** So I thought my TPLink Archer T14 went bad.. then I try following:**
Swap back my previous router TP-Link Archer C1200
Ethernet direct cable to PC → 35/12Mbps (able to reach full internet speed)
Wifi 2.4Ghz to PC via TP Link Archer T14 → 35Mbps/12Mbps
Wifi 5Ghz to PC via TP Link Archer T14 -----> 35-38Mbps/ 12Mbps (Completely normal, worked at its best)
*** And this proved my TP Link USB Archer T14 isn’t broken**
Then I tried following:
Swap back hap ac2
Ethernet direct cable to PC → 35/12Mbps (able to reach full internet speed)
Wifi 2.4Ghz to PC via TP Link Archer T14 → 3.6Mbps/2.8Mbps
Wifi 5Ghz to PC via TP Link Archer T14 -----> 1.2Mbps/ 4Mbps (speed extremely unstable and poor, still same or worse)
Then with hac ac2 still running, I tried with other devices:
Device1 : OnePlus 3T
Wifi 2.4Ghz > 32Mbps/11.8Mbps
Wifi 5Ghz (AC)-> 36-38Mbps/ 12Mbps (works normally, fast wifi speed)
Device2: Asus Zenfone Z00LD
Wifi 2.4Ghz(N) > 24-30Mbps/10Mbps (speed lower than usual, download speed inconsistent)
Device3 : Samsung Galaxy Note 2
Wifi 2.4Ghz > 16-22 Mbps/12+Mbps (speed lower than usual, download speed inconsistent)
Wifi 5Ghz (N) → 35-38Mbps/ 12Mbps (works normally, fast wifi speed)
my findings were:
-it doesn’t seem like my TP Link Archer T14 WIFI USB Adapter is the problem, hap ac2 has extremely poor wireless performance, the wifi adapter works totally fine on previous old TP Link router
-my Oneplus 3T wifi speed normal and fast on hap ac2
-my samsung Note 2 and Asus zenfone seems got some wifi performance issue on hap ac
It does look like the Wireless poor performance issue on the hap ac2 is depend on what kind of wifi chipset devices has, different devices different result.
Hopefully this small info can help
jarda - as software dev, I am used to not give any “expectations”. That is because often, expectation turns into promises and later into desperate hopes… 
Now this is a strange situation, normis, who is working for Mikrotik says there is no problem outside of this post and everything is working as expected and you say Mikrotik is aware of the problem, what can we believe? Placed an order of five routers before looking at that thread and think about cancelling to preserve me some headache. I need a product that delivers these basic functions without any problem.
The guys from Ubiquiti are happy about these problems, that’s for sure 
You should read the forum more carefully.
http://forum.mikrotik.com/t/v6-43rc-release-candidate-is-released/118681/18
http://forum.mikrotik.com/t/v6-42-current/118561/119
See what strods replied to me.
To Mikrotik: So what is the current state of this issue? There are posts from Mikrotik that you are working on this bug it should be fixed in upcoming RCs and there are posts from Mikrotik, that you are not able to reproduce it and you need more support from users. So what do you need to solve this issue?!
Should I setup simple PC-ETH1-(bridge)-WLAN-NB/static IP setup from empty config and sent files to support? Do you already know, whats happening and sending mail to support would be useless overloading of your support guys and wasting of my time?
I tested SMB speed with Intel 8265 and it was unusable. Worse than 802.11n single chain AP.
they said they were unable to reproduce the problem?
just get different range of wifi adapters, or devices with wifi to test
pretty sure they can reproduce the problem, different devices, some would work normally, some would have slow poor performance by connecting hap ac2 wifi
Mikrotik where able to reproduce the issue.
“We have currently not seen any issues outside this Forum thread.”
Thank you very much, and sorry, I’m new here and didn’t knew that you can’t trust what normis says regarding this matter.
Well. I can trust what normis said. I believe they work hard enough to deliver normally working wifi on hap ac2. And I am patiently waiting for the correction. I think that everyone would be waiting with me if normis could say more details about the problem reason and rough estimation.
I am curious if mikrotik offers any (even symbolic) compensation for the affected users (or at least for those from them who somehow helped a bit to move forward with this case).
+1