PSPICE-FOR-TI: Too many machines attempting to connect with the same access key

Hi Team, seeking for your assistance.

"">e2e.ti.com/.../pspice-error-orcap-15053-can-not-initialize-pspice-ui", The customer have uninstalled and tried to re-installed the PSPICE for TI tool, but could not succeed due to error "Too many machines attempting to connect with the same access key". Currently only 2 machines using same key. Also I requested for new Pspice access, but received the same key. 

Thank you for your assistance.

-Mark