Can't verified subscriber url

[CWMatej]

Hi, im trying to verify my suscriber endpoint with https schema.

My: url
https://backend.icarewave.com/CareWaveSynchronizations/api/fitbit/synchronize

When i change https to http everything works fine. When i use https result is "Subscriber has not been successfully verified".
Our certificate is Go Daddy Secure certificate authority - G2.
When i look into IIS logs no records about 2 request from fitbit found (as documentation say https://dev.fitbit.com/docs/subscriptions/#verify-a-subscriber 2 requests are send to endpoint).
I tried create request via runscope with https schema and subscriber endpoint is successfully verified.

What i'm doing wrong ?
Thanks in advance.

[JeremiahFitbit · Accepted solution]

Hi @CWMatej: You're probably not doing anything wrong. The issue is likely the Go Daddy Secure certificate authority - G2 because Go Daddy didn't follow proper procedure to get its root certificate included with the version of Java that Fitbit's servers use. You can either use a different certificate authority or try a crossover chain method with Go Daddy's G1 cert.