CPE510 unable to get WAN IP

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

CPE510 unable to get WAN IP

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.
CPE510 unable to get WAN IP
CPE510 unable to get WAN IP
2022-08-28 00:43:52
Model: CPE510  
Hardware Version: V3
Firmware Version: 2.2.2 Build 20201111 Rel. 58267 (0000)

I have exactly the same problem described in this old post (issue #1): 

https://community.tp-link.com/en/business/forum/topic/81638

 

My CPE510, configured as Client or AP Client Router, is unable to get a WAN IP from certain APs (from Technicolor ones it works OK, but from Kaonmedia CO it doesn't). The problem is related to DHCP discovery. The log I get is the same posted in the aforementioned link:

 

"DHCP Service unavailable, recv no OFFER"

 

I have no problem when connecting a mobile phone or a PC to those "problematic" APs.

 

I tried setting a static configuration for the WAN, but that doesn't work either (there is no way to connect the CPE510 to Internet). 

 

Any help will be appreciated.

  0      
  0      
#1
Options
3 Reply
Re:CPE510 unable to get WAN IP
2022-08-29 10:16:00

  @Ajcvzj 

You can try Client Mode so no WAN IP required, the devices will be able to obtain IP from the main router directly.

I think the issue could be on CPE IP address. If you choose router mode, the CPE must use a different IP subnet from your main router.

  0  
  0  
#2
Options
Re:CPE510 unable to get WAN IP
2022-08-29 22:52:33

  @Somnus Hi, thanks for your answer, but it doen't work, actually my initial configuration was in Client mode (and it worked OK with some AP). I will describe my setups:

 

#1, CP510 in client mode, it works with some AP, it doesn't work with another ones

 

This was my 1st configuration, and it was working OK until I have to connect to another external AP/router.

 

computers (192.168.2.0/24) --> internal AP (RS200, AP mode) --> My router (TL-470T+, LAN=192.168.2.1, WAN=192.168.0.249 or dynamic) --> My Anthena (CPE510, Client mode, IP=192.168.0.250 or dynamic) --> external AP/router (192.168.0.1)

 

#2, CPE510 in AP Client router

 

When configuration #1 failed I used this one (it's not the best because I have a double router, but it worked Ok until I switched to another external AP/router)

 

computers (192.168.2.0/24) --> internal AP (RS200, AP mode) --> My router (TL-470T+, LAN=192.168.2.1, WAN=192.168.1.249 or dynamic) --> My Anthena (CPE510, AP client router mode, LAN=192.168.1.250, WAN=192.168.0.250 or dynamic) --> external AP/router (192.168.0.1)

 

In any case, depending on the selected external AP/router, both configurations can work or not. As I noted in my previous post, my phones or computers can connect without any issue to all the external AP/routers. What is more, when I have a problem with an external AP/router, I replace my CPE510 anthena (in #1 or #2) with an old AP (TL-WA501G) configured in Client mode, and both configuration works OK.

 

To sum-up:

The problem is in CPE510, I don't know why, but for some unknow reason the external AP/router ignores the connected CPE510 (ping or traceroute from the CPE510 web console dont work). If I connect to the external AP/router with my computer, I can't see the CPE510 in the network with something like the following:

 

$ sudo nmap -sn 192.168.0.0/24

 

 

  0  
  0  
#3
Options
Re:CPE510 unable to get WAN IP
2022-08-30 04:03:39

  @Ajcvzj 

Could that be the wireless channel issue? I notice that CPE510 only supports limited channels. Even different region CPE510(like EU ver. and US ver.) can not work with each other.

 

Have you checked the external AP 5Ghz channels? I have a US version CPE510 and it only work with channel 149-165, and it won't work with my home router. My router is using channel 36-48 limited.

  1  
  1  
#4
Options