Login error definition and status.
USM Content
Описание
The Smartsheet login screen (https://app.smartsheet.com) shows this error message:
ERR_CONNECTION_CLOSED
Причина
The issue could be related to proxy settings.
Решение
Contact your IT team and have them add smartsheet.com to their bypass proxy list. They may wish to temporarily disable the use of the proxy or VPN service to see if this resolves the issue.