Hy,
I have the same problem between a WDS connection between a TP-LINK 3200 and a WR841N. After few hours or at least a day I'm loosing internet connection from the bridged one (WR841N) .....

I am not using WDS but problem still continues.

Do you have wired connection between routers?

Hello,
in my case it's a wifi connection, not wired.

It is wired connection between router and wireless connection between PCs

WDS is unstable mode. Very important is signal level.

I have seen the system log,and the information is normally.I need more system log to analyze it.

Hi jimasek,

I'm having the same problem. I also have a V8 TL-841N. It had been running for several months without problem. I recently installed a Synology NAS and have been backing up files wirelessly from my laptop to the NAS. Suddenly the connection would drop. I thought maybe this was due to the increase in traffic. However, problem still occurs with file transfer turned off.

What's interesting is that the laptop and cell phones lose internet access and local access but show that they are still connected to the wireless LAN. Even as such I am unable to connect to the router or access bridge wirelessly, only wired. Wired connections and internet access were still working. I uploaded the latest firmware, reset the access bridge to bridge only, assigning a fixed LAN address and turning off DHCP. Still wireless connections to the access bridge and the internet would work for a while then not work.

You say that WDS is unstable and signal level is important. So what are some options to try? I will try disabling and setting wireless to a specific channel width (20Mhz) and channel (11) and see if that helps. Appreciate any other suggestions you may have.

(EDIT: 2hrs later and connection still working)