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5ghz 2 running at less than half speed

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5ghz 2 running at less than half speed

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5ghz 2 running at less than half speed
5ghz 2 running at less than half speed
2022-08-11 08:17:29 - last edited 2022-08-11 08:24:48
Tags: #Bandwidth Control/QoS
Model: Archer C5400X  
Hardware Version: V1
Firmware Version: 1.1.2 build 20191223 rel. 73956

My 5g 2 is running slow and I cannot seem to fix it. Its a tri-band router and all three have auto settings for Mhz and channel. Interestingly when I power the router on the 5g 2 works at full speed but it depletes after about 2 mins. Also, I cannot seem to fix the channel or channel width (Mhz) on the 5g 2 connection like I can on the 5g1 or the 2.4. Using a wifi analyser it appears that my 5g 2 connection is perpetually at 20Mhz and if I try to change it I lose the connection. 5g 1 is broadcasting at 80Mhz. There doesn't appear to be any obvious interference - but despite the auto setting 5g 2 seems fixed on channel 100. I'm in the UK 

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9 Reply
Re:5ghz 2 running at less than half speed
2022-08-11 15:10:46

  @Alecmax 

 

It appears there is a newer firmware available.  Have  you tried updating it? 

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#2
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Re:5ghz 2 running at less than half speed
2022-08-11 15:23:46
Hmm my app tells me my firmware is up to date
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#3
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Re:5ghz 2 running at less than half speed
2022-08-11 15:24:06
Where can i see the latest version?
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#4
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Re:5ghz 2 running at less than half speed
2022-08-11 15:51:03

  @Alecmax 

 

For UK, go to:

 

https://www.tp-link.com/uk/support/download/archer-c5400x/#Firmware

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#5
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Re:5ghz 2 running at less than half speed
2022-08-11 18:00:09

  @pcuttle I've managed to force the 5g 2 into 80mhz as opposed to auto. That seems to help. I'm not sure why it wouldn't help earlier.

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#6
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Re:5ghz 2 running at less than half speed
2022-08-12 09:29:06

  @pcuttle stopped working I can't understand. I've set the channel and channel width to 80 but doesn't seem to work. The thing I can't understand is why does it work at full strength for like 5 mins. Then stop?

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#7
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Re:5ghz 2 running at less than half speed
2022-08-12 12:07:02 - last edited 2022-08-12 12:11:04

  @Alecmax 

 

Have you looked into updating firmware yet?  If that does not help, you may need to work with TP-Link engineers.  They may have a beta firmware you can try.

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#8
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Re:5ghz 2 running at less than half speed
2022-08-12 12:09:50
Yes ive done that, which didnt make a difference. So i did a factory reset this morning. Its been at full speed for about 90 mins so far. Strange one. I think i need to lesrn more :-)
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#9
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Re:5ghz 2 running at less than half speed
2022-08-12 12:13:54

  @Alecmax 

 

It is strange but doing a factory reset has helped me in the past with strange behavior.  Hopefully, that takes care of it for you.

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Tags

Bandwidth Control/QoS
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