Deco M9 Plus Horrible Speeds
Deco M9 Plus Horrible Speeds
Hi All,
Just set up my M9 Plus 3 AP system and boy am I seeing some horrendous connection speeds. I called support yesterday and they had me unplug the auxiliary APs, and I’m only seeing 28Mbps on my 2x2 AC iPhone X. The PC’s tested marginally better- my desktop with a 600Mbps AC adapter is at 150mpbs, and my laptop with A 650Mbps radio connecting at 350Mbps.
I have no competing wireless networks, and there are no interference sources in or around my house.
With previous Xyzel 3000 CenturyLink Router, I was able to achieve 450Mbps on my laptop which I verified before setting up the Deco, and 120Mbps on my iPhone, if I recall correctly.
I’ve disabled the 2.4ghz band in order to try to force the devices to use a faster connection, but still no luck. All IPS, QoS, and security services are disabled. TP-Link Support told me they’d put me in touch with an Engineer, but I have yet to see anything come through.
Im a Network Specialist by trade, and perform wireless maintenance and augmentations daily, so I’m pretty comfortable in saying that these speeds, especially on my mobile device, are unacceptable. I can’t understand why my 1Gbps Fiber connection, which when directly connected to the ISP provided router were hitting 850Mbps, is only able to hit 450Mbps on the Deco at the demarc, and why my end device speeds are so low.
Any help? Advice? Secret firmware or developer mode I can enable to really start nailing down the settings, like forcing 80mhz channel bonding or separating the networks by 2.4/5Ghz? Can I flash this thing with DD-WRT or something similar and make it actually usable for speeds I couldn’t get in 2010 on 802.11G?
Might take a while to reply, internet’s slow.
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Same here, mostly.
Two days ago, things started going really slow, from consistenct 100/100 at the slowest everywhere in my house. Now often I see speeds of 60/20, up to 250/250. But its also VERY erratic. I use some wifi analysis tools, and what I see is a number of "hidden networks" that have the same hardware address as the normal wifi deco's. I am pretty sure they are the wireless backhaul networks. However, the interesting thing is they used to be there all the time and stable. But now, they come and go, and new ones are created and removed. Again, they all share the HW address as the deco's, but when recreated they change the last letter. When they are down or changing seems to be when my speeds drop the most.
I'm guessing this is related to the speed issue. My unerstanding is these "hidden networks" are what manage sending data between the decos and help keep the roaming working and speeds of connected clients fast. I wonder of there's recent firmware update that caused this bug, or a slowely growing hw issue affecting these hidden networks stability?
Anyway, I'm a #frustrateduser who just wants it to work. The Deco's are attractive, simple and easy to place. They are a super convient option for mesh, but the "ugly" lnksys and dlink options seem to be more reliable. I may have to switch, but TP-Link, please these are the perfect mesh wifi if they can just be reliable!!!
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Sharing some of my observations to see if it helps or matches with anyone else
I used to have an old Linksys 3 antenna Wifi Router with Xfinity Modem. It used to work fine and for last 4 years no one in my family experienced
any wifi issues. We have approx 20 wifi devices connected.
I switched to M9 plus about 6 months ago to improve reception in the backyard hoping that a msh network would provide better coverage for a 2K Sqft home.
Setup was super easy and network was up in no time. I noticed that Wifi performance on Laptops and phones also improved ( Checking with Netflix "fast" App ) .
All was well for about 6 weeks, when I experienced a slowdown in Wifi speeds. I ran speeed tests using Deco app on phone and it confimed that
upstream speeed were same as before which pointed to the Wifi network. After restaarting the main unit, things became fast again.
However, this seems to have become the norm now and I have to restart the main Deco unit every ~4 weeks. I also did a factory reset just to rule it out,
which made no difference. Also tried turning off all Firewalls, IDS, Malware protection etc, but it made no difference
Iam running a M9 Plus with latest firmware build 1.2.12 Build 20191014 Rel 42025
Basically, Iam wondering If I should bring back my old Wifi router or get something different ( Nest or Orbi ). This is very frustrating.
Thoughts ? Suggestions ?
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@midnite83 Technically, couldn't you setup different SSID's by band if you used the primary for 5ghz only and the guest network option for 2.4.
midnite83 wrote
This is not a modem issue. Connection speed between client and M9 AP is definately drop drastically as you move away from it. Normally with my Tmobile Asus router I get 700Mbps connection with my laptop in the office. I place the m9 at the same location and power off the old ap and setup m9 as AP I get only 200-300Mbps once it settle. Initial connection will be 600Mbps but afterward it drop. If I sit 7 fts away then I get 866. THere no way to create addition network ID to setup seperate 2.4 and AC network. End up return the setup and go back to my old setup with two Tmobile routers with one setup as Router and one as AP connect via ethernet. These M9 also run hot.
Speed Range need to improve.
Need ability to create multiple Access Name.
Has the ability to use the backhaul channel to client connect if setup with ethernet backhaul.
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Hey all,
I recently did some troubleshooting on this, and think I found a solution (at least one that works for me). Give this a shot and let me know if it works for you!
https://randomwindowstips.wordpress.com/2020/12/03/deco-m7-m9-slow-internet-speed-lan-wifi/
Thanks!
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I've been scouring the internet for solutions and found this
https://www.tp-link.com/us/support/faq/2429/#:~:text=Try%20removing%20QoS%20settings%3A%20Deco,feature%20in%20the%20Deco%20app.
Copied from the link
3. Troubleshooting:
- Try removing QoS settings: Deco APP>>>QoS>>>(Set Application priority to Standard, Remove all high priority devices, set the Bandwidth to 1000Mbps upload and 1000Mbps download)
- Try turning off the UPNP feature in the Deco app. ( If you can't find this feature in the Advanced menu, you may ignore this one. ) (Kindly note that some online games might not be able to connect after turning off UPNP on the Deco.)
- Try downloading a Wi-Fi Analyzer Tool on your cellphone to check wireless channel interferences, crowded Wi-Fi channel will cause a severe performance decrease.
The first bullet fixed the issue for me. I had prioritized a few devices and that was causing the deco to downgrade the available speeds to all other devices. Hope this helps!
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Thank You mAurelius!!!!
I checked my QoS settings and they were still low from when I had Comcast cable internet. I manually reset both to 1024 & now I'm getting all of the 300Mbps (both up & down) that I am paying for with my new AT&T fiber internet connection.
Thanks Again!
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Thank's for the tip, it have worked perfectly for me.
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@Calvinx Looking all over and this finally helped me. Thanks!
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