Connect link failing after changing link encryption from none to full.

Steps to reproduce - 

1. create 2 cluster, 1 local analytics cluster, 1 remote KV cluster
2. Load sample bucket in remote KV cluster
3. create link to remote cluster on local cluster with encryption set as none.
4. create dataset using link in step 3
5. disconnect link and alter link encryption to full and use root certificate with username and password
6. try connecting link.
7. below error is raised.

[

  {

    "code": 22001,

    "msg": "Connect link failed {\"Default.newLink.travel-sample\" : \"Internal error\"}",

    "query_from_user": "connect link newLink;"

  }

]