When attempting to setup Mailchimp for WooCommerce 2.1.10 after installation, the API key field does not accept valid API keys. An error is thrown: "Mailchimp says: API Request Error - 0 :: on 1474 in /home/njbcoates/public_html/wp-content/plugins/mailchimp-for-woocommerce/includes/api/class-mailchimp-api.php"

Troubleshooting completed:
-Testing API key to ensure validity and appropriate data center is being used.
-Staging environments
-cURL request from server is not returning any Akamai blocks or issues.
Example system status:
WC Version: 3.5.0
Log Directory Writable: :heavy_check_mark:
WP Version: 4.9.8
WP Multisite: –
WP Memory Limit: 256 MB
WP Debug Mode: –
WP Cron: :heavy_check_mark:
Language: en_US
External object cache: –
### Server Environment ###
Server Info: Apache
PHP Version: 7.0.31 - We recommend using PHP version 7.2 or above for greater performance and security. How to update your PHP version
PHP Post Max Size: 64 MB
PHP Time Limit: 0
PHP Max Input Vars: 1000
cURL Version: 7.19.7
NSS/3.27.1
SUHOSIN Installed: –
MySQL Version: 5.6.41-84.1
Max Upload Size: 64 MB
Default Timezone is UTC: :heavy_check_mark:
fsockopen/cURL: :heavy_check_mark:
SoapClient: :heavy_check_mark:
DOMDocument: :heavy_check_mark:
GZip: :heavy_check_mark:
Multibyte String: :heavy_check_mark:
Remote Post: :heavy_check_mark:
Remote Get: :heavy_check_mark:
WC Database Version: 3.5.0
WC Database Prefix: wp_
MaxMind GeoIP Database: :heavy_check_mark:
Total Database Size: 31.46MB
Database Data Size: 23.97MB
Database Index Size: 7.49MB
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When attempting to setup Mailchimp for WooCommerce 2.1.10 after installation, the API key field does not accept valid API keys. An error is thrown: "Mailchimp says: API Request Error - 0 :: on 1474 in /home/njbcoates/public_html/wp-content/plugins/mailchimp-for-woocommerce/includes/api/class-mailchimp-api.php"
Troubleshooting completed:
-Testing API key to ensure validity and appropriate data center is being used.
-Staging environments
-cURL request from server is not returning any Akamai blocks or issues.
Example system status: