DHT is constant

I am wondering how do i go about in raising up my DHT number.

In the past, i am usually connected to over 3k+ of nodes. But now i am only connected to the 1402 and that the number i started with when i on my BC.

Please advise. My BC version is 7.0

There is nothing to worry about - if you’re connected to 1 node (and you are), you’re connected to the whole DHT network. (BTW, BitComet says “DHT connected node: xxxx”). Check this page in BitComet’s wikipedia (last section there).