Authorize.net error in magento 2.0.5

[krishnaprakash]

I have configured the authorize.net in my new magento store. I have updated my sandbox api login id, transaction key, merchant md5, and changed the url into "https://test.authorize.net/gateway/transact.dll" for testing. Also i have enabled the test mode and debug mode to track.  While placing the order i am receiving the  error on alert box "Please enter a transaction ID to authorize this payment.". While checking /var/log/debug.log transaction id (x_trans_id) was in 0.

Can any one help me to troubleshoot this issue.

[Walters_fish]

I am also getting same issue, but i did some thing and it working.

1. change payment --> authorize.net --> Test Mode to "No"
2. sandbox.authorize.net turn to live. (Your Account is Live and ready to process real transactions.)
3. change website HTTP to HTTPS.

for you reference.