Sandbox api curl (5) SSL connect error

I’ve done an omnipay-paypal implementation for our website via Laravel. Recently I cannot test using any of my sandbox account. I’ve been getting an SSL connect error. NSS error -12286. Is anyone encountering this issue? I’ve checked the PayPal support and they have marked an SSL issue as resolved last Jan. 19, 2016.

Below is a cli curl call to api.sandbox.paypal.com and the corresponding error.
Is anyone facing the same issue?

curl -v https://api.sandbox.paypal.com/v1/oauth2/token \
> -H "Accept: application/json" \
> -H "Accept-Language: en_US" \
> -u "xxx:xxxx" \
> -d "grant_type=client_credentials"
* About to connect() to api.sandbox.paypal.com port 443 (#0)
*   Trying 173.0.82.78... connected
* Connected to api.sandbox.paypal.com (173.0.82.78) port 443 (#0)
* Initializing NSS with certpath: sql:/etc/pki/nssdb
*   CAfile: /etc/pki/tls/certs/ca-bundle.crt
  CApath: none
* NSS error -12286
* Closing connection #0
* SSL connect error
curl: (35) SSL connect error

Sandbox api curl (5) SSL connect error