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Archer C6 losing internet connection

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Archer C6 losing internet connection

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Archer C6 losing internet connection
Archer C6 losing internet connection
2021-02-09 13:58:05
Model: Archer C6  
Hardware Version: V2
Firmware Version: 1.3.6 Build 20200819 rel.50735(4555)

Hello, 

 

After recently upgrading the firmware version to the latest one my router keeps losing internet connection to the 2.4 network and all my smart devices have to be manually reconnected every few hours. This does not seem to affect the 5G network or the LAN devices, they work perfectly fine. I am in no way an expert so I am going to try my best to explain the behavior I have observed so far:

 

1.The 2.4 network keeps broadcasting but device are unable to connect to the internet ( like unplugging the LAN cable from your ISP from the back of the router but leaving the router on ) 

2. Rebooting the smart devices does not fix the issue as they still cannot connect to the network

3. Rebooting the router sometimes works, sometimes it does not

4.  I use a Fiber-optic connection and the router is connected to another router provided by the ISP. I am not sure if this could cause the problem as the 5G connection and the LAN works perfectly fine but thought I should mention

 

 So after searching the forums and trying various fixes here's what I have tried until now:

 

1. Rebooting the Router 

2. Backup & factory resetting the router 

3. Using a WiFi analyzer and setting the channels to the clear ones, also setting the transmitting power to max and channel bandwidth to max. (This did not work so I have reverted to AUTO ) 

4. Upgrading my firmware to a beta version 1.3.6 Build 20200819 rel.50735(4555)

5. Disabled Smart connect 

 

Do you guys have any idea if this is related to the firmware version or is a hardware version? Also if it is firmware version do you have a previous build (2020) I could restore to as I am unable to find a list with previous firmware versions on TPLink's website 

 

Also do you have any more tips I could try as I am working from home and my work Optiplex is using the 2.4 Connection so getting disconnected every few hours is becoming extremely infuriating and it is compromising my work.

 

PS: I have the EU V2. hardware version 

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#1
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7 Reply
Re:Archer C6 losing internet connection
2021-02-09 16:07:17 - last edited 2021-02-09 16:16:50

@Viision96 

 

If your FW version is an EU, here's the list of FW releases.

Have you tried the beta FW from this thread ? (it's in the Recommend Solution post by Kevin_Z)

You can revert from beta to the one on top of the list for sure.

When changing the FW version it's advisable to hard reset (Method 1) the device and reconfigure from scratch.

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#2
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Re:Archer C6 losing internet connection
2021-02-10 19:49:22

@Ivaylo I have tried the previously released version Archer C6(EU)_V2_20090 as well as the beta version For Archer C6EU V2: https://static.tp-link.com/2020/202010/20201030/ArcherC6v2_eu-up-ver1-3-6-P1[20201030-rel60104].zip and have experienced much fewer network crashes but they do still happen. 

Also, I have performed a factory reset after installing each version.

 

Is it safe to consider that at this point this might be a hardware issue? 

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#3
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Re:Archer C6 losing internet connection
2021-02-10 20:13:37
In your first post you mentioned that the issue has started after a FW upgrade. So I can't say definitely that's a HW issue.
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#4
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Re:Archer C6 losing internet connection
2021-03-22 01:37:19
I know it's has been a while but the problem still persists, although now I can easily fix it by rebooting the router. For some reason, all devices connected to the 2.4G connection lose internet connection and cannot reconnect automatically or manually unless I reboot the router.
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#5
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Re:Archer C6 losing internet connection
2021-03-22 02:15:57

@Viision96 

 

When the smart devices lose the 2.4G connection, and they failed to reconnect, what is the error message? Can they still find the 2.4G network in the Wi-Fi list?

 

May I know the detailed Wireless Security setting on the C6? You may cover the SSID and password for any security concerns.

 

How many devices are connected to C6 2.4G network? What are they?

 

How often does this disconnect issue happen?

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#6
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Re:Archer C6 losing internet connection
2021-03-22 02:30:37 - last edited 2021-03-22 02:36:23

@Kevin_Z 

 

Hello, 

The 2.4G network is visible and my devices usually give the " Unable to connect to the network" error. Once my iPhone was unable to connect and the error mentioned to check the DHCP setting but I cannot recall the exact error message. 

 

 I have two light strips, two light bulbs, and two Echo Dots also some smart panels from Nanoleaf. So that comes to about 10-12 devices.

 

Edit: The devices disconnect at least once every 24 Hrs but it's pretty random. They do remain connected for some time after rebooting but not more than 6-8 hours

 

Here are some snips:

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#7
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Re:Archer C6 losing internet connection
2021-03-22 07:14:54

@Viision96 

 

We have reported the issue to the support engineers, they will likely reach out to you via email to continue to troubleshoot your issue.

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#8
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