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Can't connect to wifi after about 48h

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Can't connect to wifi after about 48h

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.
Can't connect to wifi after about 48h
Can't connect to wifi after about 48h
2021-12-08 18:08:57
Model: Archer C5400  
Hardware Version: V2
Firmware Version: ArcherC5400(EU)_V2_210308

I recently updated the firmware on my router from 1.2.5 Build 20190411 rel.52981 to the latest version available on the site: ArcherC5400(EU)_V2_210308. This version is not found by the internal firmware check in the router.

 

Upgrading went fine, I saw no special issues. I did experience a better performance and full use of available bandwith, the reason for upgrading the firmware. See the issues on the forum about that.

 

But, after about 2 days, none of my devices could connect to the wifi. The network was still found, but none could connect. No authentication errors, just failing to connect. This goes for Linux laptops, Android phones, iPhone, iPad, MacBook, HP Printer. Every device. Pretty sure it's not the device that is having the issue. Switching off and on solves the issue. For 2 days that is, then the issue returns.

To make sure it's not a failed firmware update, I did a hard reset, did a new firmware upgrade and did not use a backup of my settings to configure the router again. Unfortunatelly, after about two days, no device can connect to the wifi.

 

Any suggestion on how to solve this is much appreciated. I just did a firmware downgrade on the device, but have no idea if this will help. Will know in about two days ;-)

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Re:Can't connect to wifi after about 48h
2021-12-09 02:56:35

@127001 

 

Hello, please monitor the connectivity first as you have already downgraded to the previous version.

 

Just to be sure, when the issue happened on all the wireless devices, are you still able to connect to the internet on any wired devices? That means do you have internet access if you connect a computer to the router with an Ethernet cable when none of the wireless works? Please confirm this if the issue comes back.

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 BE550 New Software Enhances System Stability and Optimizes MLO Network Stability. 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:Can't connect to wifi after about 48h
2021-12-12 20:18:59

@Kevin_Z The positive part is that the WiFi stays okay on the previous firmware.

As for your question, I'm not sure if the wired connections were still working. Did not actively tested those.

 

So, stuck here between a working router with less than optimal performance and a router dat needs a hard reboot every two days. Any suggestions? Could it be the correct firmware is missing on the site? The Archer C5400(EU)_V2_190411 actually has an EU-reference in the downloaded file, the newer ArcherC5400(EU)_V2_210308 is missing that in the download.

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#3
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Re:Can't connect to wifi after about 48h
2021-12-15 06:40:31

@127001 

 

The bin file in the downloaded folder does include the EU reference, don't worry, that firmware is the officially released version for your hardware.

 

Can you please let me know what is issue you are experiencing with the 20190411 version? We will see if this can be addressed.

 

 

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 BE550 New Software Enhances System Stability and Optimizes MLO Network Stability. 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:Can't connect to wifi after about 48h
2021-12-15 11:48:36

Thanks @Kevin_Z . Leaves me with a router that has issues :-( Any other suggestion besides bringing it in for repair?

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