The delay to the start of the Classic TT race programme on Monday was caused by a temporary failure of the dispatch console at the TT Grandstand, it has been confirmed.
In the interest of competitor safety, event organisers took the decision to suspend racing until the issue was resolved.
Officers from the Communications Division of the Department of Home Affairs were able to restore the console to enable racing to get under way at 2pm. Further repairs and testing took place on Monday night ahead of racing on Tuesday.
The problem with the dispatch console had no impact on other users of the Terrestrial Trunked Radio (TETRA) emergency communications system, the DHA said in a statement.
TETRA remained fully operational for all users including the Constabulary, the Fire and Rescue Service, Ambulance and Paramedic services and the travelling marshals.
The console at the TT Grandstand is among the equipment being replaced during a £5m upgrade of TETRA which was approved by Tynwald in November. The new system is on target to go live later this month.
TETRA has been in operation 24 hours a day, 365 days a year since it became operational in April 2004.
During that time, it has handled more than 16 million calls and had a total system availability rate of 99.4 per cent, the DHA said.