C5400X Terrible Wifi

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C5400X Terrible Wifi

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C5400X Terrible Wifi
C5400X Terrible Wifi
2020-03-18 18:42:19 - last edited 2020-03-18 18:43:48
Model: Archer C5400X  
Hardware Version: V1
Firmware Version: 1.1.2 Build 20191223 rel.73956(5553)

I purchased a TP-Link AC5400 in hopes to improve the reliability of my Wifi connection and have additional ports. Ever since I made the switch from a Linksys EA7500 to thisrouter, it has been nothing but headaches.

 

  1. My phone (Samsung S9) constantly connects to 2.4 instead of 5G (never had this issue before).
  2. My wifi connection (next to the router) has never been over 300 mbps (despite my internet being 1 gbps)
  3. And today, I have had two wifi devices start getting speeds of ~1-20mpbs speeds (one can't even connect to the speed test website).

 

Anyone been able to fix this?

How is a $300 router with 7 wireless devices connected performing so much worse than a $100 router. I'm on the edge of returning this if this is the normal. 

 

I've also tried manually selecting channels based on Wifi Analzer, however, that only makes things slower and knocks out my Amcrest Wifi cameras...

 

LAN speeds are ~600-700 Mbps which isn't as close to 1Gbps as I'd expect, but thats the least of my worries..

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#1
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11 Reply
Re:C5400X Terrible Wifi
2020-03-18 19:16:05

 

Date ConnType Lat Lon Download Speed Download Size Upload Speed Upload Size Latency
02/27/2020, 5:05 PM Wifi 39.35513783 -76.41933974 534.812168 691960480 298.681904 122061175 10
02/27/2020, 5:05 PM Wifi 39.35513783 -76.41933974 496.836888 467289872 238.767416 121641934 13
02/27/2020, 5:07 PM Wifi 39.35512148 -76.4192608 418.210552 457467552 180.732936 121844654 12
03/01/2020, 3:07 PM Wifi 39.35505416 -76.41931771 365.571792 399113582 231.169272 121962281 11
03/01/2020, 3:08 PM Wifi 39.35505416 -76.41931771 338.68532 433866848 259.919248 122009919 9
03/10/2020, 8:10 PM Wifi 39.35505748 -76.41937521 232.239672 175372536 286.906696 121843054 11
03/10/2020, 8:11 PM Wifi 39.35505001 -76.41938331 208.962784 218951509 236.184856 121712263 14
03/10/2020, 10:14 PM Wifi 39.35518444 -76.41923537 394.369304 608858848 247.754968 121720126 9
03/10/2020, 10:25 PM Wifi 39.35515479 -76.41917827 17.004712 10424152 19.208216 15916416 12
03/10/2020, 10:25 PM Wifi 39.35515701 -76.41917889 181.569512 309695056 39.354288 58192224 12
03/10/2020, 10:27 PM Wifi 39.35515701 -76.41917889 292.481408 429811664 67.653128 87462719 11
03/10/2020, 10:28 PM Wifi 39.35515701 -76.41917889 301.155816 317954200 47.455096 52870824 11
03/13/2020, 8:39 AM Wifi 39.35513601 -76.41926486 272.9976 370395552 286.877888 121919918 12
03/16/2020, 2:19 PM Wifi 39.35505124 -76.41933487 263.536168 291474251 201.950616 109137040 12
03/18/2020, 11:44 AM Wifi 39.3551451 -76.41918551 286.693896 268905408 247.340744 121820846 9
03/18/2020, 1:40 PM Wifi 39.35519209 -76.41912822 19.97216 26285728 14.886808 3409728 11
03/18/2020, 1:41 PM Wifi 39.35519209 -76.41912822 18.761088   13.721504   64
03/18/2020, 1:43 PM Wifi 39.35516397 -76.41914276 2.009072 1649260 15.61524 23571992 9
03/18/2020, 1:52 PM Wifi 39.35499655 -76.41905734 231.481104 209919832 235.108744 122272799 12
03/18/2020, 2:10 PM Wifi 39.35510105 -76.41919374 254.471568 361775024 85.501256 121664479 9
03/18/2020, 2:10 PM Wifi 39.35510218 -76.41919374 218.546376 277471552 81.653208 76849704 9
03/18/2020, 2:19 PM Wifi 39.35514809 -76.41892507 198.478784 236240603 154.47132 121698101 12
03/18/2020, 2:21 PM Wifi 39.35510228 -76.41905064 223.28024 274339240 126.99212 121644308 9
03/18/2020, 3:10 PM Wifi 39.35507777 -76.41923004 248.996168 194044692 124.85112 121700496 12

 

 

In fact it looks like the same issue as others have mentioned on this forum (the slow degrade of internet quality) is still taking place despite having the "new" firmware.

Also the oddball ~2-20 Mbps speed tests are the random instances where TP-Link has had my phone connect via 2.4G instead of 5G.

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#2
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Re:C5400X Terrible Wifi
2020-03-19 12:15:01

Anyone?

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#3
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Re:C5400X Terrible Wifi
2020-03-19 19:05:20 - last edited 2020-03-20 16:13:34

@Wojtnic 

 

  1. Disable smart connect you can choose what network to connect to rather then the router.
  2. Test other wireless devices and with the 5GHz network, not the 2.4GHz.
  3. Of the seven devices make sure other devices were not downloading or using the available bandwidth at that time.
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#4
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Re:C5400X Terrible Wifi
2020-03-20 13:37:23

@Tony 

 

1.) Smart Connect has been disabled this entire time

2.) I have done that as well. My work laptop couldn't even connect to the speed test website and my personal laptop only gets ~350 mbps as well.

3.) None of them were. They are devices like a Nest thermostat, google home, 2 amcrest cameras, etc.

 

Furthermore, if this router is that sensitivity to something else using a tiny bit of bandwidth, that is alarming.

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#5
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Re:C5400X Terrible Wifi
2020-03-20 16:28:08

@Wojtnic 

 

Are you 2.4GHz and 5GHz both named the same? You mentioned your phone keeps connecting to the 2.4Ghz rather then the 5Ghz. If not, forget the 2.4Ghz network so the phone will not automatically switch. What else could be happening is you are moving too far from the 5GHz signal so the phone jumps over to the better signal.

 

The third point was simply a suggestion to try given the situation, not a statement of the capability of the router.

 

In any case, I would suggest contacting our support to looking into your issue further, having that speed with 1 gbps internet is unusual.

 

Live Chat: link
Phone: link
E-mail: link

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#6
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Re:C5400X Terrible Wifi
2020-03-20 17:44:24
What speed do you get if you bypass the router and connect the PC direct to the modem? Try a different Ethernet cable between the modem and router. Is your firmware up to date? Do you have any old "G" or older WIFI devices in your network causing the slow down?
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#7
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Re:C5400X Terrible Wifi
2020-03-22 21:36:15

@Tony 

 

They have the same "basename" but are not identical (i.e. Internet 5G and Internet 2.4G)

 

To the second point, that is what occured (i.e. I moved away from the house on a walk) however, upon returning, my phone does not reconnect to 5G unless I tell it to. That wasn't the old behvior when using the Linksys Router.

 

I do have a case open to TP-link that I'm waiting a reponse on.

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#8
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Re:C5400X Terrible Wifi
2020-03-22 21:39:31 - last edited 2020-03-22 21:40:49

@ArcherC8 

 

Not using a modem. I have fios so the signal comes directly from the ONT box (which I guess is a modem technically) to the router. Router is getting speeds in the ~600-700 mbps.

 

 

My desktop PC is getting similar speeds which is connected by Ethernet.

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#9
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Re:C5400X Terrible Wifi
2020-04-14 11:43:59

@Wojtnic Now even my wired connection is getting worse....Following TP-Links suggestion of: 

 

for 2.4 GHz> channel : 1, 6, and 11 width : 40MHz
5 GHz > channel 36 width : 80 Mhz
after that check again the speed

 

Resulted in:

 

Router speed: 668 mbps up | 673 mbps down 

Hardwired PC speed: 395.53 mbps up | 353.43 mbps down 

Wireless PC speed: 253.34 mbps up | 267.02 mbps down 

 

How does this router continuosly to degrade every day??

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#10
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Re:C5400X Terrible Wifi
2020-05-30 23:30:21

@Wojtnic Sorry to hijack your topic but i wanted to know if you have solved this issue? I got the same troubles with 2 samsung devices (S9+ and Tab S5e) and wifi with my c5400x

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#11
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