Autoconfigured IP for some clients

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Autoconfigured IP for some clients

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.
Autoconfigured IP for some clients
Autoconfigured IP for some clients
2020-09-11 17:56:49
Model: Archer A7  
Hardware Version: V5
Firmware Version: 1.0.15 Build 20200721 rel.40773

Hey all,

 

I submitted a support ticket but thought I'd pick the community's brain.  I have my A7 running in Access Point mode, connected to a wired network in my office.  Two devices of mine (iPhone and MacBook Pro) are able to connect to the Archer's wifi network no problem, and both get an IP address on the wired network and everything is happy.  But my iPad and one other MacBook are unable to get an IP address - they just get an autoconfigured 169.254.xxx.xxx and are unable to see anything on the network.  However, both those devices are able to get on the other wifi network here that serves the same network.  

 

I've updated the firmware, rebooted everything, and no luck.  There are no errors in the log, either.  

 

Any ideas on how to troubleshoot this? 

 

Thanks,
Scott 

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#1
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Re:Autoconfigured IP for some clients
2020-09-11 20:47:22
You can try deleting (forget) the network on the iPad and then re-establish the network. Since you have Apple PCs, start WIFI, click the WIFI icon while holding the option key down, click open wireless diagnosis, do not click continue but instead click on the word Window at the top left of the page, then select from that menu for more options to help resolve the PC issues.
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#2
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Re:Autoconfigured IP for some clients
2020-09-11 22:36:30

@ArcherC8 yep, I tried that too - and I tried both the 2.4 and 5ghz networks - same behavior on both 

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#3
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Re:Autoconfigured IP for some clients
2020-09-11 23:23:43

@sdwr98 

 

That IP Address is telling you something, no network seen.

 

From another site:

 

===============

Following are some addresses that indicate a problem with your connection:

  • 169.254.x.x: This is what's called an Automatic Private IP address. An IP in this range means that the computer cannot see the network. A computer using DHCP needs to have an external server tell it what IP address to use. Unfortunately, if there's no network connectivity, the computer is unable to talk to the server. In those cases, the computer will actually give itself an IP starting with 169.254, since it must assign itself some sort of number. When you see a 169.254.x.x address, you definitely have a problem. It could be as simple as an unplugged network cable, or it could be as complex as the network being down. A fair amount of troubleshooting is involved at this point, but the bottom line is that your computer doesn't even see the network.

 

================

 

I suspect the devices 'network data'.

 

sdwr98 wrote

 However, both those devices are able to get on the other wifi network here that serves the same network.  

 

That might just be the problem answer? The GATEWAY IP Address, I'll assume they are different, and you've probably got some duplicated SSID names possibly.

 

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Re:Autoconfigured IP for some clients
2020-09-11 23:43:40

 

IrvSp wrote

@sdwr98 

 

That IP Address is telling you something, no network seen.

 

 

@IrvSp sure, and if all the devices had an autoconf IP, that'd be one thing.  But some devices connect fine.  Plus the router itself gets an IP on the network. So it's not the underlying network's DHCP that's the issue.  

 

IrvSp wrote

 

That might just be the problem answer? The GATEWAY IP Address, I'll assume they are different, and you've probably got some duplicated SSID names possibly.

 

 

No duplicate SSIDs - this is my private router in a coworking space.  All my devices can join the coworking space's network via wires or their wifi network, it's just when connecting to the Archer that some of the devices fail. 

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Re:Autoconfigured IP for some clients
2020-09-12 11:48:16

@sdwr98 

 

I'd check the settings on both routers and compare when wireless. Should look about the same I'd think?

 

Here is what my iPad looks like:

 

 

Compare on your router to other devices that connect too.

 

Also, if I understand correctly if WIRED you have the same problem? How did you connect an iPad to wired? Mac I can understand though. Or did you mean other devices?

 

One thing to try, and this could be an environment problem, interference on some channels. I'll assume your router is on a different one from the main router. That could be one of 2 things, the channel you are on is crowded and those devices can't handle the interference, or possibly the ones you are using will not work with those devices (hign channels). Of course since you tried 2.4Ghz as well that would sort of rule out the higest frequencies.

 

 

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#6
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Re:Autoconfigured IP for some clients
2020-09-14 17:28:30

@sdwr98 

 

Have you tried setting AP Mode using the older method? https://www.tp-link.com/us/support/faq/417/

 

The UI is older, but the concept the same when setting up the newer routers in AP Mode.

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#7
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