Hello,

I have this same problem. TL-WR840N with a Dell notebook on Wifi, sometimes the router freezes, and only a manual restart to put it at working again.
I'm using the last version of firmware ( 3.16.9 Build 150909 Rel.75475n) and tp-link don't made a new firmware ever since.

Regards

@uutommi

 

Hello, I'm in the same situation with a newly updated Wr840N to the TL-WR840N_V2_150909_BR firmware. I use a Dell E4300 on the wired network and I can attest that it still works even with the wireless network problem by allowing me to change the channel setting from automatic to 8 by re-establishing the wireless network without having to reset the Wr840N. Apparently the wireless network stopped when turning on the Dell, but reinforcement that I use in the wired network and with the wireless network inactive.

Dell network adapters are Broadcom 802.11b / g Wireless Network Adapter and Intel 82567LM ICH9M (E +) Gigabit Ethernet Controller