Camilla, Dave:
The GRB/SN external alert system had stopped running around 07:18 Sunday 17th PST. There were no logs from the lv_alert service on ext-alert to indicate a problem. Since H1 has just lost lock, I took the opportunity to restart lv_alert and the system is now updating again. The last restart of this system was last Tuesday, at 09:01 during maintenance.