Data Domain: Unable to configure ESRS or SCG: "Invalid Username and/or Password"

Configuring ESRS or SCG failed with this error and is not able to configure using both customer's and support TSEs credentials.

Error:

Failed to register device to : Invalid username and/or password

Recently Dell retired this authentication process on the backend, it has been switched to the Access Key and PIN-based authentication.

If the customer is still on DDOS code that uses SRS, the username is the "Access key" and the password is the "PIN" in the registration steps.

Note: Data Domain HA systems can not be configured for SRS with connectemc with an Access Key and PIN. System must be upgraded to DDOS 8.3.1.0, 7.13.1.40 or later to use ESE SupportAssist configuration.

For single node DDs, to resolve this issue, users must generate an Access Key and create a PIN by following the below steps:

1. Search DD serial number in the Dell support site, and then click "Generate Access Key"

2. If there is no existing access key, then click next

3. Enter a 4-digit PIN (must save it for future reference), and click "create my access key," then it sends the access key to your email

   KB article to Generate an Access Key:
   Generate Access Key and PIN for Dell Products

4. Register SCG Gateway on DD:
   #support connectemc device register <IP.of.DD.sys> esrs-gateway <YOUR_ESRSGW_hostname>

   Username: Access Key
   Password: PIN

   Example:

   SE@dd9800## support connectemc device register 10.144.155.134 esrs-gateway odc3-isl-esrs
   Enter Dell EMC Support username: <Access Key>
   Enter Dell EMC Support password: <PIN>
   
   Device registered to ESRS gateway odc3-isl-esrs.

   #support connectemc config show
   Example:

   sysadmin@dd9800# support connectemc config show
   ConnectEMC Configuration:
           ESRS gateway IP/hostname:    10.82.26.240
           Registered device IP(s):     10.144.155.134

   #support notification method show
   Example:

   sysadmin@dd9800# support notification method show
   Notification method is set to "connectemc".

   #support notification method set connectemc
   Example:

   sysadmin@dd9800## support notification method set connectemc
   Support notification method set to "connectemc".

   #support connectemc test
   Example:

   sysadmin@dd9800# support connectemc test
   Sending test message through Secure Connect Gateway...
   Test message successfully sent through Secure Connect Gateway.