Archer C9 v5 AP mode stops giving out DHCP addresses

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Archer C9 v5 AP mode stops giving out DHCP addresses

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Archer C9 v5 AP mode stops giving out DHCP addresses
Archer C9 v5 AP mode stops giving out DHCP addresses
2021-03-29 14:10:43 - last edited 2021-03-29 14:13:58
Model: Archer C9  
Hardware Version: V5
Firmware Version:

Archer C9, when setup as a AP, with an upstream router/ modem, stops wireless clients from receiving DHCP addresses from upstream DHCP server after a few hours.

Have tried to configure the AP as DHCP client and also with static IP address, but the problem persists. In the DHCP client mode, I can see the  AP requesting DHCP address from upstream DHCP server every few seconds.

 

 

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#1
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Re:Archer C9 v5 AP mode stops giving out DHCP addresses
2021-03-31 07:44:33

@ad19 

 

What is the model number of the upstream router/ modem? 


How about other devices in the network, are they all working fine when connecting to the upstream router/ modem network directly? What if you disable the Wi-Fi on the ISP router, only leave the Wi-Fi broadcasting on the C9, will it help?


You are also suggested making the Archer C9 as the main router if that is possible, then confirm if it can connect stably. If that gives you a stable connection, then there might be some special setting on the upstream router/ modem that cut it off from the network, you can contact the router support to confirm.

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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Re:Archer C9 v5 AP mode stops giving out DHCP addresses
2021-03-31 08:41:06

@Kevin_Z 

 

The upstream router is Linksys EA8300 running OpenWRT. I have also tried this setup with the upstream router as Linksys WRT3200 running on dd-wrt. All wireless clients work fine with the upstream routers.

The issue is only with Archer C9 connecting to the upstream routers. Archer C9 cannot be made the upstream router as it does not have good bandwidth management and policy features that OpenWRT or dd-wrt provide and Tp-link does not allow open source firmware on Archer C9 v5. So I guess I am stuck with a dud.

 

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#3
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Re:Archer C9 v5 AP mode stops giving out DHCP addresses
2021-03-31 11:50:25

@ad19 

 

Check this guide to manually configure it into AP mode again, and set a static IP address for it, ensure the static IP is in the same IP subnet of the Linksys:

https://www.tp-link.com/support/faq/417/

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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Re:Archer C9 v5 AP mode stops giving out DHCP addresses
2021-03-31 15:15:33

@Kevin_Z 

Looks like you did not read my initial problem statement.

Have already tried setting up the Archer C9 with static address. Even that stops working after some time.

 

 

 

 

 

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#5
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Re:Archer C9 v5 AP mode stops giving out DHCP addresses
2021-04-01 08:35:43

@ad19 

 

Sorry. To locate this issue and try to fix it, we would like to follow up on your case via email. Please check your inbox and provide the information that we need.

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:Archer C9 v5 AP mode stops giving out DHCP addresses
2021-04-05 13:16:16

@Kevin_Z 

 

Logs shared on email with Sarah Xiao.

 

 

 

 

 

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#7
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Re:Archer C9 v5 AP mode stops giving out DHCP addresses
2021-04-06 01:15:42

@ad19 

 

Hi, I found Sarah Xiao did send yo, while it seems there is no reply from you, can you please send the system log again via email?

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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#8
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Re:Archer C9 v5 AP mode stops giving out DHCP addresses
2021-04-06 03:17:55

@Kevin_Z 

 

Resent.

 

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#9
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