We use this code to confirm Google reCaptchas:

  loHTTP = CREATEOBJECT('wwHTTP')
  loHTTP.nhttpPostmode = 1
  loHTTP.AddPostkey([response], cRecaptcha)
  loHTTP.AddPostkey([secret], lcSecret)
  lcResult = loHTTP.Httpget([https://www.google.com/recaptcha/api/siteverify])

This started failing on one of our sites - we're getting: A connection with the server could not be established (nError=12029) The admin says this happened when he disabled TLS 1.0. Does that make any sense?

I suggested there was a firewall issue of some sort but he claims he can hit that address if he brings up a browser from the server console. Then what would prevent wwHTTP from hitting the same site?

--stein

What OS are you calling from?

Old operating systems (XP and Vista if I recall) don't work with TLS 1.2 if using the Windows HTTP APIs (as wwHttp does). Windows 7 and 8 need registry flags to enable it, and Windows 8.1 and 10 should just work.

Here's more detail...

Web Connection and TLS 1.2 Support

Server 2012. They claim they already had TLS 1.2 enabled. I'll dig into your blog post and see if I can figure out what their problem is.