2.4ghz lost connection, 5ghz still working

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2.4ghz lost connection, 5ghz still working

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2.4ghz lost connection, 5ghz still working
2.4ghz lost connection, 5ghz still working
2019-04-20 18:06:47
Model: Archer C3150  
Hardware Version:
Firmware Version:

I lost my 2.4ghz connection while the 5ghz still working, the strange thing is my 2.4ghz extension still working. Anyone can help? Thanks.

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#1
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90 Reply
Re:2.4ghz lost connection, 5ghz still working
2019-04-22 03:10:06 - last edited 2021-09-03 06:52:38

Hi,

 

What do you mean you lost the 2.4GHz network? More specific symptom will be better. 

 

Meanwhile, what is the current wifi leds? Especially the 2.4GHz one. 

 

Is the status of 2.4GHz normal? You can confirm it on the web interface of the router.

https://www.tp-link.com/en/support/faq/1523/  (This FAQ is no longer available now, you can visit here to login to the web interface)

 

Besides, did you try to power cycle the router, disable and re-enable the wifi function to give it a go?

 

Good day. 

Nice to Meet You in Our TP-Link Community. Check Out the Latest Posts: Connect TP-Link Archer BE550 to Germany's DS-Lite (Dual Stack Lite) Internet via WAN Archer GE550 - BE9300 Tri-Band Wi-Fi 7 Gaming Router EasyMesh Is Available When Wi-Fi Routers Work in AP Mode as A Controller. Archer AX55V2 Supports WireGuard VPN, EasyMesh Ethernet Backhaul, IoT Network, Speed Limit,and More If you found a post or response helpful, please click Helpful (arrow pointing upward icon). If you are the author of a topic, remember to mark a helpful reply as the "Recommended Solution" (star icon) so that others can benefit from it.
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#2
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Re:2.4ghz lost connection, 5ghz still working
2019-04-22 06:56:37

I got the same issue, bought TP-LINK archer C4000 router few days ago, at first i was able to connect to the 2.4Ghz and set up everything. After a day, out of sudden 2.4ghz went missing, could find the SSID at all, following 5Ghz disappear too. After hard reset, only 5Ghz SSID can be seen. 2.4Ghz totally gone.

Danize wrote

I lost my 2.4ghz connection while the 5ghz still working, the strange thing is my 2.4ghz extension still working. Anyone can help? Thanks.

 

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#3
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Re:Re:2.4ghz lost connection, 5ghz still working
2019-04-23 00:54:28 - last edited 2021-09-03 06:53:09

Hi,

 

What is the 2.4GHz light? Does it come on when the 2.4GHz network gone? 

 

If all the devices cannot see it? What is the status of 2.4GHz once you logged into the web interface? 

Note: How to login: https://www.tp-link.com/en/support/faq/1524/  (This FAQ is no longer available now, you can visit here to login to the web interface)

 

May I know how did you hard reset it? Holding the reset button / hole for 10s? 

 

Besides, what is the current hardware and firmware version?

 

Thanks in advance. Good day. 

Dot wrote

I got the same issue, bought TP-LINK archer C4000 router few days ago, at first i was able to connect to the 2.4Ghz and set up everything. After a day, out of sudden 2.4ghz went missing, could find the SSID at all, following 5Ghz disappear too. After hard reset, only 5Ghz SSID can be seen. 2.4Ghz totally gone.

 

Nice to Meet You in Our TP-Link Community. Check Out the Latest Posts: Connect TP-Link Archer BE550 to Germany's DS-Lite (Dual Stack Lite) Internet via WAN Archer GE550 - BE9300 Tri-Band Wi-Fi 7 Gaming Router EasyMesh Is Available When Wi-Fi Routers Work in AP Mode as A Controller. Archer AX55V2 Supports WireGuard VPN, EasyMesh Ethernet Backhaul, IoT Network, Speed Limit,and More If you found a post or response helpful, please click Helpful (arrow pointing upward icon). If you are the author of a topic, remember to mark a helpful reply as the "Recommended Solution" (star icon) so that others can benefit from it.
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#4
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Re:Re:Re:2.4ghz lost connection, 5ghz still working
2019-04-23 02:09:58

Kevin_Z wrote

Hi,

 

What is the 2.4GHz light? Does it come on when the 2.4GHz network gone? 

 

If all the devices cannot see it? What is the status of 2.4GHz once you logged into the web interface? 

Note: How to login: https://www.tp-link.com/en/support/faq/1524/

 

May I know how did you hard reset it? Holding the reset button / hole for 10s? 

 

Besides, what is the current hardware and firmware version?

 

Thanks in advance. Good day. 

Dot wrote

I got the same issue, bought TP-LINK archer C4000 router few days ago, at first i was able to connect to the 2.4Ghz and set up everything. After a day, out of sudden 2.4ghz went missing, could find the SSID at all, following 5Ghz disappear too. After hard reset, only 5Ghz SSID can be seen. 2.4Ghz totally gone.

 

2.4Ghz light is blue color on the device itself

When i logged into the web interface i saw that 2.4GHz has a orange color wifi signal in your web interface

current hardware is v2, firmware version is v1.21

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#5
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Re:Re:Re:Re:2.4ghz lost connection, 5ghz still working
2019-04-23 08:53:36

Hi,

 

Thanks for your reply. 

 

Can you see the 2.4GHz network name on your device at that time? If you can see it but unable to connect to it, is there any error message? 

 

What is the current firmware? Is it 180322? 

 

Have you tried to change some wireless settings of 2.4GHz? Like channel and channel width. 

Note: You can fix channel as channel 1, 6 or 11, and change channel width to 20MHz. 

 

Besides, have you ever hard reset the device by holding the reset button/hole for 10s? If not, please give it a go.

 

Any updates, just let me know. 

 

Good day. 

 

 

Nice to Meet You in Our TP-Link Community. Check Out the Latest Posts: Connect TP-Link Archer BE550 to Germany's DS-Lite (Dual Stack Lite) Internet via WAN Archer GE550 - BE9300 Tri-Band Wi-Fi 7 Gaming Router EasyMesh Is Available When Wi-Fi Routers Work in AP Mode as A Controller. Archer AX55V2 Supports WireGuard VPN, EasyMesh Ethernet Backhaul, IoT Network, Speed Limit,and More If you found a post or response helpful, please click Helpful (arrow pointing upward icon). If you are the author of a topic, remember to mark a helpful reply as the "Recommended Solution" (star icon) so that others can benefit from it.
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#6
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Re:Re:Re:Re:Re:2.4ghz lost connection, 5ghz still working
2019-04-25 03:54:44

When i start using the router i can see 2.4Ghz, but after a day, 2.4Ghz suddenly stop broadcasting.

This is my firmware Archer C4000(US)_V2_180322.

still no 2.4Ghz, 5Ghz is fine, so weird

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#7
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Re:Re:Re:Re:Re:2.4ghz lost connection, 5ghz still working
2019-04-25 06:41:08

Kevin_Z wrote

Hi,

 

Thanks for your reply. 

 

Can you see the 2.4GHz network name on your device at that time? If you can see it but unable to connect to it, is there any error message? 

 

What is the current firmware? Is it 180322? 

 

Have you tried to change some wireless settings of 2.4GHz? Like channel and channel width. 

Note: You can fix channel as channel 1, 6 or 11, and change channel width to 20MHz. 

 

Besides, have you ever hard reset the device by holding the reset button/hole for 10s? If not, please give it a go.

 

Any updates, just let me know. 

 

Good day. 

 

 

Please release new firmware to fix the 2.4Ghz issue

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#8
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Re:Re:Re:Re:Re:Re:2.4ghz lost connection, 5ghz still working
2019-04-25 06:47:24 - last edited 2019-04-25 06:55:12

Hi,

 

May I know if all the devices cannot see the 2.4Ghz ssid at that time? What about your laptop? Try to move them closer to the main router and check whether you can detect the 2.4GHz. 

 

Meanwhile, what is the brand and OS version of your cellphone and laptop?

 

Thanks in advance, and have a nice day. 

Nice to Meet You in Our TP-Link Community. Check Out the Latest Posts: Connect TP-Link Archer BE550 to Germany's DS-Lite (Dual Stack Lite) Internet via WAN Archer GE550 - BE9300 Tri-Band Wi-Fi 7 Gaming Router EasyMesh Is Available When Wi-Fi Routers Work in AP Mode as A Controller. Archer AX55V2 Supports WireGuard VPN, EasyMesh Ethernet Backhaul, IoT Network, Speed Limit,and More If you found a post or response helpful, please click Helpful (arrow pointing upward icon). If you are the author of a topic, remember to mark a helpful reply as the "Recommended Solution" (star icon) so that others can benefit from it.
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#9
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Re:Re:Re:Re:Re:Re:Re:2.4ghz lost connection, 5ghz still working
2019-04-25 07:02:33

Kevin_Z wrote

Hi,

 

May I know if all the devices cannot see the 2.4Ghz ssid at that time? What about your laptop? Try to move them closer to the main router and check whether you can detect the 2.4GHz. 

 

Meanwhile, what is the brand and OS version of your cellphone and laptop?

 

Thanks in advance, and have a nice day. 

All my devices cannot see 2.4Ghz ssid, it's definetly not my laptop or cellphone problem, as i tried mac os, iphone, android, all cannot. furthermore i switch back to old d-link router i am able to see 2.4Ghz. your 5Ghz is really fast, but please update your firmware to fix the 2.4Ghz, else i think i have to switch brand

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#10
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Re:Re:Re:Re:Re:Re:Re:Re:2.4ghz lost connection, 5ghz still working
2019-04-25 07:09:56

Hi,

 

We totally understand your feeling, both of us want to sort it out.

 

May I know the distance between your device and the C4000?

 

Did you try to move it closer  to the main router and fresh the wifi list? Can you see the 2.4GHz then?

 

Good day. 

 

Nice to Meet You in Our TP-Link Community. Check Out the Latest Posts: Connect TP-Link Archer BE550 to Germany's DS-Lite (Dual Stack Lite) Internet via WAN Archer GE550 - BE9300 Tri-Band Wi-Fi 7 Gaming Router EasyMesh Is Available When Wi-Fi Routers Work in AP Mode as A Controller. Archer AX55V2 Supports WireGuard VPN, EasyMesh Ethernet Backhaul, IoT Network, Speed Limit,and More If you found a post or response helpful, please click Helpful (arrow pointing upward icon). If you are the author of a topic, remember to mark a helpful reply as the "Recommended Solution" (star icon) so that others can benefit from it.
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#11
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