Irregular TLS handshake timeout

[grv87]

Terraform Version: 0.9.8
Host OS: Windows 7 SP1 x64

Affected Resources: cloudflare_record

I try to create several DNS records. Terraform irregularly fails with the TLS handshake timeout error, the list of affected resources is always different.
Example of error message:

Error refreshing state: 7 error(s) occurred:

* cloudflare_record.ajaxhttpheaders: 1 error(s) occurred:

* cloudflare_record.ajaxhttpheaders: cloudflare_record.ajaxhttpheaders: Error finding zone "fidata.org": ListZones command failed: error from makeRequest: HTTP request failed: Get https://api.cloudflare.com/client/v4/zones?name=fidata.org: net/http: TLS handshake timeout
* cloudflare_record.website: 1 error(s) occurred:

* cloudflare_record.website: cloudflare_record.website: Error finding zone "fidata.org": ListZones command failed: error from makeRequest: HTTP request failed: Get https://api.cloudflare.com/client/v4/zones?name=fidata.org: net/http: TLS handshake timeout
* cloudflare_record.mail: 1 error(s) occurred:

* cloudflare_record.mail: cloudflare_record.mail: Error finding zone "fidata.org": ListZones command failed: error from makeRequest: HTTP request failed: Get https://api.cloudflare.com/client/v4/zones?name=fidata.org: net/http: TLS handshake timeout
* cloudflare_record.yandex_mail_verification: 1 error(s) occurred:

* cloudflare_record.yandex_mail_verification: cloudflare_record.yandex_mail_verification: Error finding zone "fidata.org": ListZones command failed: error from makeRequest: HTTP request failed: Get https://api.cloudflare.com/client/v4/zones?name=fidata.org: net/http: TLS handshake timeout
* cloudflare_record.artifactory: 1 error(s) occurred:

* cloudflare_record.artifactory: cloudflare_record.artifactory: Error finding zone "fidata.org": ListZones command failed: error from makeRequest: HTTP request failed: Get https://api.cloudflare.com/client/v4/zones?name=fidata.org: net/http: TLS handshake timeout
* cloudflare_record.yandex_mail_dkim: 1 error(s) occurred:

* cloudflare_record.yandex_mail_dkim: cloudflare_record.yandex_mail_dkim: Error finding zone "fidata.org": ListZones command failed: error from makeRequest: HTTP request failed: Get https://api.cloudflare.com/client/v4/zones?name=fidata.org: net/http: TLS handshake timeout
* cloudflare_record.google_verification: 1 error(s) occurred:

* cloudflare_record.google_verification: cloudflare_record.google_verification: Error finding zone "fidata.org": ListZones command failed: error from makeRequest: HTTP request failed: Get https://api.cloudflare.com/client/v4/zones?name=fidata.org: net/http: TLS handshake timeout

Whenever I get this error I try to manually delete records from Cloudflare and from tfstate file. Sometimes it helps, sometimes not. Sometimes the problem disappears by itself. So, I'm not sure this is a workaround.

Terraform configuration file and debug output: https://gist.github.com/grv87/905a43851000200c1872fe6ce952cd1f
Note that terraform runs under Gradle, so there is extra output from Gradle. I hope that doesn't confuse you.

[grv87]

Sorry for disturbance. The problem was in firewall - it slows things very badly.