Verisign is conducting a scheduled maintenance window between 9pm and 1am EST. This effects .com and .net registry operations.
Renewals and registrations will be queued until after the window, during the window you will not be able to edit whois records or nameserver delegations for .com/.net domains.
This window is registry-wide and affects all registrars.
All other top-level-domains and core functionality such as DNS, URL and email forwarding are not impacted by this window.