@SebasLag Try different security and mode settings on the 2.4 network as all of your devices may not support them. On the hardware side, if the antennas are removeable, remove and switch them.

@Routerism If I understand correctly, you have modem > router > extender > router. The last router needs to be in AP mode. Generally one would not connect an extender or AP to an extender. I would...

@Quest7 Most older devices use the 2.4 GHz band which can cause issues. The band tends to have the most devices on it. It also gets a lot of interference from non network things. The old devices do...

@redwagon One thing many get wrong about APs, extenders and Mesh is they place the units too far apart.They put it in the problem area. Much better to put it in an area with a strong signal so that...

@Nxus Try a Factory reset and reenter your settings.

@User-Suren1 I have not attached more than one USB drive to a router knowing what others have encountered. A router is not a NAS. I have read about Ethernet to USB adapters and considered getting one...