Business CommunityGateways169.254.x.x IP Fallback
Gateways

169.254.x.x IP Fallback

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.

169.254.x.x IP Fallback

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.
169.254.x.x IP Fallback
169.254.x.x IP Fallback
2025-11-20 01:10:26 - last edited 2025-11-20 08:37:31
Tags: #Routing #Network Connectivity
Model: ER605 (TL-R605)  
Hardware Version: V2
Firmware Version: 2.3.0

Hello!

I just wanna ask for a solution on my ER605 which connected to my Omada setup using OC200.

The main problem is, there are times that the gateway gives a fallback ip (169.254.x.x) and results no internet connection. May I ask what is the main reason? My daily solution is rebooting the er605.

Thank you for your help!

0
0
#1
1 Accepted Solution
Re:169.254.x.x IP Fallback-Solution
2025-11-20 08:37:28 - last edited 2025-11-20 08:37:31

  @PISD 

Thank you for your post. Could you clarify whether the IP in question was obtained on the WAN side or the LAN side? The address appears invalid; if it came from the WAN side, it indicates the ER605 has lost connectivity with the upstream device and failed to receive a proper WAN IP. Please check the upstream connection. Additionally, review the OC200’s logs for any related entries.

Wishing you a joyful life and smooth internet! Get the Latest Firmware Releases for Omada Routers Here - Subscribe for Updates Omada US Enterprise Beta Program Launch
Recommended Solution
0
0
#2
4 Reply
Re:169.254.x.x IP Fallback-Solution
2025-11-20 08:37:28 - last edited 2025-11-20 08:37:31

  @PISD 

Thank you for your post. Could you clarify whether the IP in question was obtained on the WAN side or the LAN side? The address appears invalid; if it came from the WAN side, it indicates the ER605 has lost connectivity with the upstream device and failed to receive a proper WAN IP. Please check the upstream connection. Additionally, review the OC200’s logs for any related entries.

Wishing you a joyful life and smooth internet! Get the Latest Firmware Releases for Omada Routers Here - Subscribe for Updates Omada US Enterprise Beta Program Launch
Recommended Solution
0
0
#2
Re:169.254.x.x IP Fallback
2025-11-20 09:00:45
Hi! I just noticed that the issue might be caused by having a large number of people connecting, which causes the IP address to fall back. I tried using the private IP 10.0.0.1/21 to increase the IP pool. We also contacted the ISP, and they said their router may have a problem that prevents the ER605 from obtaining a DHCP address. I will continue to observe if the problem persists.
0
0
#3
Re:169.254.x.x IP Fallback
2025-11-20 23:20:08

  @PISD 

 

169.254.x.x is the self-assigned IP address a device gives itself if it doesnt recieve a DHCP response (or doesnt request one)

 

Check your client isnt overriding DHCP with wacky settings

0
0
#4
Re:169.254.x.x IP Fallback
2025-11-20 23:27:33

  @GRL Ohhh. and also the APs sometimes are having a sudden readopting moment.

0
0
#5

Information

Helpful: 0

Views: 615

Replies: 4

Tags

Routing Network Connectivity
About Us
Press
Copyright © TP-Link Systems Inc. All rights reserved.