It sounds like there might be interference or congestion on the 2.4GHz and the 5GHz around your location, that could be due to moreof your neighbours using Wifi now. Use a wifi Analyzer app on your phone or download a Wifi Analyzer on your computer. I would suggest the Wifi Analyzer app by farproc on your Android app or Acrylic Wifi for your computer.

Theres no correlation between getting a stronger signal on 2.4GHz and a faster connection. 2.4GHz has better range, but with lower thoroughput, but it’s usually very congested and prone to interference. 5GHz is usually better, with higher thoroughput, to the expense of range, but less congestion.

See this link for more detailed explanation: https://www.howtogeek.com/222249/whats-the-...should-you-use/

It sounds like there might be interference or congestion on the 2.4GHz and the 5GHz around your location, that could be due to moreof your neighbours using Wifi now. Use a wifi Analyzer app on your phone or download a Wifi Analyzer on your computer. I would suggest the Wifi Analyzer app by farproc on your Android app or Acrylic Wifi for your computer.

Theres no correlation between getting a stronger signal on 2.4GHz and a faster connection. 2.4GHz has better range, but with lower thoroughput, but it’s usually very congested and prone to interference. 5GHz is usually better, with higher thoroughput, to the expense of range, but less congestion.

See this link for more detailed explanation: https://www.howtogeek.com/222249/whats-the-...should-you-use/

Exactly the same issue as mine.. same c5 and upgrade from 30 to 50mbps.. only thing is even my LAN connection also slow... dunno whether router or unifi problem

The app can only scan those wifi complaint network but they are a lot more other devices hogging the 2.4Ghz band.

Dect phones, microwave ovens and even some baby monitor all use 2.4Ghz

I’m quite surprised to see that 2.4 is still so bad. Try changing to 40MHz for your 2.4GHz. That might help.

Hi guys,
Not sure if this is related. but looks like it. Just got upgraded from 30mbps to 50mbps too recently.

I was using TL-WR841HP V1 before this. Wanted to try AC wifi for my new 50mbps line so I bought the Archer C60 V2 AC1350 and a AC600 wifi receiver Archer T2U.   
But after a few days testing, seems like my C60 can't give 40Mbps+ over wifi on both 2.4GHz or 5GHz. Most of the time it hovers around 30Mbps or so.
With LAN cable, I can get at least 40-45Mbps on both my routers C60 & WR841HP. But not on Wifi, it seems stuck / capped around 30mbps, where mostly I get just 25-28Mbps on wifi.
Also tested with my other devices with wifi AC smartphones in the house. (A 2-storey terrace)

Some suggested to disable QoS, but i can't. My router won't work if I do not enable Unifi IPTV.
How to disable the QoS? The checkbox is greyed out if I choose Unifi IPTV enable for C50 V2 firmware. It says QoS and IPTV can't be enabled together at the same time.
Should I use custom settings for IPTV and then enable the QoS? What are the numbers to use for IPTV?

In the end, just using the C60 as repeater to my old WR841HP ..*sigh* 

I’m quite surprised to see that 2.4 is still so bad. Try changing to 40MHz for your 2.4GHz. That might help.

I don’t think it have anything to do with the placement of the router or IPV6 settings. Might be a firmware issue or his router is not capable of handling that many devices, with result in lower thoroughput.

How come the performance of tp link ac1200 is worse when compare to asus rt-n12?

yayaya, disable firewall sound scary, especially i got public address enable.

I called TP-Link support, this is new router, with so many known issue, I requesting to return/refund, but they want to investigate first, so far I provide all symptom and info, waiting their response.

From all other Lowyat forum expert experience, the old series C5/C7 still the best and stable. not sure whether I still can get it...

None of the new tplink models (I mean other models) are stable?

I have both routers, mind you TP-Link C3150 have the same chipset as the Asus RT-AC88U.

Performance is better than the RT-AC68U for sure but it comes with less features.

It depends what is your priority.

These features below. If you don't plan on using your router as anything more than just a router, the C3150 is a great choice.

I suggest update it to the latest firmware and you may have more features.

MU-MIMO is not useful as it requires MU-MIMO devices. Maybe you can enable Airtime Fairness as it may help a little.

That's what makes the price worthwhile. I love all the extra features that this router has, and I have updated it to the latest firmware, which has more features. Will leave you to explore for yourself 

Wait for the 12/12 sale on Lazada bro. 5 more days. Will send you a message if there is a great offer.

V2. I bought from him during 11/11 sales 

Definitely the v2. OOKAS always sells the latest version of TP-Link products, so no worries. Will definitely let you and bro Jjuggler know if there are a good offer.

That’s surprising bro. I am using the exact same router to you, and I never have this problem. Did you try updating to the latest firmware? My Hypptv is okay and no problems, and I am running the latest firmware.

Regarding the 5GHz and 2.4GHz WiFi, have you try analyzing the wireless networks in your area? If there is too many congested channels and interference, changing routers won’t help. Use WiFi analyzer by farproc if you are using Android phone and Acrylic WiFi if you are using PC.

Bro, I have the exact same router as you as you know and have similar settings, and I have no problems. You should have no problems as well. Maybe you can set the 2.4GHz to 802.11bgn mixed and 5GHz to 802.11AC only.

Bro, it is the latest firmware. Register here for Cloud ID and you can use the Tether app anywhere you go to remotely manage your router:

https://www.tplinkcloud.com/register.php

Bro, try to test around with wifi mode, channel and width. Try to avoid using auto channel and set channel width for 5G to 80mhz if you have not done so. I'm currently setting my wifi mode to n only for 2.4g and AC only to 5g. I can achieve at least 100Mbps for both wifi modes in speedtest. Also try to detach any external devices to the router first for testing purposes and narrow down the issue