Can someone help on the below error
npm install nightwatch --save
ERR! code EPROTO
npm ERR! errno EPROTO
npm ERR! request to https://registry.npmjs.org/nightwatch failed, reason: write
EPROTO 101057795:error:14077419:SSL routines:SSL23_GET_SERVER_HELLO:tlsv1 alert access denied:openssl\ssl\s23_clnt.c:802:
npm ERR!