@romil123 do a trace route to find out at which hop it fails and raise this with YBB support. The fault may or may not be with YBB but with a downstream router.
This is what I get:
tracert 1.1.1.1
Tracing route to one.one.one.one [1.1.1.1]
over a maximum of 30 hops:
1 1 ms 1 ms 1 ms 100.69.0.1
2 3 ms 3 ms 3 ms Pune-Core01.youbroadband.in [203.187.215.1]
3 28 ms 28 ms 28 ms 125.18.243.241
4 29 ms 29 ms 29 ms 182.79.203.197
5 29 ms 29 ms 29 ms 182.79.223.54
6 27 ms 27 ms 27 ms one.one.one.one [1.1.1.1]
Trace complete.
For me, ping times to google.com and to Google DNS is 4 ms