Our team has identified and resolved this issue. We will continue to monitor the fix to ensure that everything continues to work as expected. If you have any additional questions, please contact Marketo Support https://support.marketo.com.
We are currently experiencing issues with accessibility to Marketo instances in our Ashburn Datacenter. A small subset of customers may not be able to connect to Marketo services. We are actively investigating this issue now and will post updates as soon as they become available. If you have any questions, please contact Marketo Support https://support.marketo.com