@Sk.hasan-2255 Hi bro, you really need to be more specific with the issue you are consulting. You cannot connect to the wireless network? If that's the case, make sure you got the correct wireless...

@gponce Try to change the internet DNS servers on the C50 to 8.8.8.8 and 8.8.4.4, then reboot both the modem and C50, you can also disconnect and reconnect to the wireless on the phones and tablets,...

@Chickoo1 If you fail to connect this WR850N to the internet, try to follow the troubleshooting suggestions provided here.

@BB16 What's the model number of the TP-Link router? Is there an LED for the 2.4G network on its front board? Is it on? If it is on, the 2.4G network should be enabled correctly, you can log into its...

@syntaxerror They only have Archer AX73 and AX4400 support Speed Limit, which is the same as you called Bandwidth Control. Check this thread.

@lsala I personally would suggest purchasing a Deco mesh system instead of the AX73 or extenders, since you are hoping to build an Ethernet backhaul. AX73 + extenders don't support Ethernet backhaul,...