[SOLVED] Getting self-assigned 169 IPs from new access point

ACABThomas

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Mar 4, 2012
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We have Luxul XWR-3100 router in our small office. I recently added a Luxul XAP-1510 access point to improve the wireless signal in part of the building. After some hassle, I got it connected and working. Today I noticed that any devices (e.g., MacBook, Chromebook, or iPhone) that connect via the AP are getting self-assigned IPs in the 169 range, and are unable to access the internet. If the same devices connect instead to the router with the same SSID, they get a proper IP and connect to the internet. I ensured both the router & AP are running the latest firmware, tried rebooting the router & AP, and even tried a factory reset on the AP - same problem. The Luxul router automatically detects and configures the AP, so there are no options within the AP to change DHCP or other settings.

Any recommendations on possible causes, solutions, or next steps for troubleshooting appreciated. Thanks.
 
Solution
It is very hard sometime to troubleshoot things when the SSID are the same. Can you force the AP to have a different SSID so you can test and know you connect to the AP.

It almost sounds like the AP is not really connected to the router or there is some other problem. I have not seen that brand before so I can't say how they work or don't but they are really expensive from a quick search.

Maybe try to manually assign a valid IP address to your PC. You could assign the same one the router gives you via dhcp just be careful to not do that long term because the router may assign it to a different device.

Now make sure it works connecting to the main router with a fixed IP address. Now move very close to the AP and force it to...
It is very hard sometime to troubleshoot things when the SSID are the same. Can you force the AP to have a different SSID so you can test and know you connect to the AP.

It almost sounds like the AP is not really connected to the router or there is some other problem. I have not seen that brand before so I can't say how they work or don't but they are really expensive from a quick search.

Maybe try to manually assign a valid IP address to your PC. You could assign the same one the router gives you via dhcp just be careful to not do that long term because the router may assign it to a different device.

Now make sure it works connecting to the main router with a fixed IP address. Now move very close to the AP and force it to connect to the AP either by changing the SSID if you did that or stop an start the wifi so it drops the wifi connection to the main router.

This should in theory work fine. A AP pretty much just converts the wifi to ethernet, it really has no concepts of IP address or dhcp or anything. If this does not work then there is something more fundamentally wrong the AP setup. If it does but the DHCP still does not work then the AP must in some way be filtering DHCP broadcast messages. It should not do stuff like this because it is purely a wireless/ethernet bridge but some fancy AP have other features.
 
Solution