TP-Link TL-WR841N - cannot connect the wan port to another router

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TP-Link TL-WR841N - cannot connect the wan port to another router

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.
TP-Link TL-WR841N - cannot connect the wan port to another router
TP-Link TL-WR841N - cannot connect the wan port to another router
2017-03-24 18:54:19
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Hardware Version :

Firmware Version :

ISP :

Hello,

I have this configuration :
parent gateway and router : Sonicwall TZ 205 wireless-N . DHCP Server on this network is a Microsoft Windows 2012 Server.
[*]subnetwork provided by tp-link WR841 N (V11.1), with DHCP active on the sub lan.
WR841N WAN port is connected to the sonic wall:
with dynamic ip configuration, the router does not get an IP adress.
[*]with static ip configuration (with parent gateway), the ping is not working in diagnostic tools
If I connect my laptop instead of the WR841N behind the firewall I get an ip and internet is working. I also tried to clone my MAC address but result is the same.
I can see this message in WR841N logs :
DHCPC DHCP Service unavailable, recv no OFFER


I followed resolution guide here (including firmware upgrade to wr841n(EU)_v11_160325.bin), all methods tried without success http://www.tp-link.com/lk/faq-138.html and did not found same problem on the forum

WR841N is well working with dynamic IP behind an TPLink modem/router TD-W8970N

Any idea of how I can get through this :confused::confused:

Many thanks

fred
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