Can we use TPLink Deco x20 as router on existing Bsnl fibre broadband

Messages
2
Location
Bangalore
ISP
BSNL broadband
I am using BSNL fibre broadband with Syrotech router and it's has poor wifi coverage across rooms and floors . My friend gave me a TP-Link Deco x20 wireless mesh router. How can I configure that as a router? Is it possible or pls suggest any other workarounds.

Thank you.
 
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