[Solved] My 2 AR750 connected in WDS to a AR750S don't Update lists in Software (packages)

Hello! I have two AR750 connected each one with WDS (wireless) to an AR750S. Network works fine, every device wireless attached to any router get to the internet and see each other, but i cannot Update Lists in System-Software (luci), in the two AR750. In the AR750S I can do it, no problems.
Error says:

Downloading 404 Page not found - GL.iNet
*** Failed to download the package list from 404 Page not found - GL.iNet

Failed to establish connection
Collected errors:

  • opkg_download: Failed to download 404 Page not found - GL.iNet, wget returned 4.
  • opkg_download: Check your network settings and connectivity.

No internet connection for the two AR750?
Is there any script making work that (ssh) ?

Seems when working in WDS mode, the router itself has problem with DNS.

Can you try setting DNS on the router?

Can you use wget to download the files directly? It will give more info about the problem.

wget http://www.gl-inet.com/lede/2.271/ar71xx/generic/Packages.gz 

What a silly thing !! Yes, putting main router IP (luci>Network/interfaces/LAN>Use custom DNS servers and putting WDS-AP DNS) on the two AR750 solved the problem !!
Thank you, alzhao !