@vallieauer

Hey

Would you be able to give us more information on what device you currently have an what device you are considering buying?

What device type are you looking to connect?

@Philbert 

My modem router is the C6300BD-1TLAUS

I have been using for over 4 years. It has worked fine at the beginning but recently the speed has dropped below 2mbps

I have reset it again and again but it didn't work so I want to change another one with better speed. Maybe this one I'm using is a little bit old (I guess)

@vallieauer 

Hey

Sorry for the slow reply, the model you have currently ( C6300BD-1TLAUS  ) is a cable modem router, sadly TP Link does not offer a direct replacement for this device.  TP Link make DSL and VDSL Modem Routers, sadly not Cable Modem Routers. 

There is also the possibility that your ISP has locked the connection to that specific device (using the MAC address or Serial of the device) therefore a replacement may not connect for you.  You would be required to SPOOF (clone) the current MAC to the new device, not a massive undertaking but needs considered..  This is surprising common thing to have to do

Honestly, if I was in your scenario I would approach your ISP for an upgraded router, they should be able to accommodate you as this is a fault in their hardware.   Firstly it may be free and second its going to work for certain. 

Best of luck