[Solved] Ikea Tradfri users - long response times?

[Edit] Solved! By restarting the hub. Doh!

I was wondering if other Ikea Tradfri users have really long delays when using the CoAP interface to control lighting? I don’t think this is specific to the OpenHAB plugin. I see the long delay when using the Ikea app too. It could be 4 to 5 seconds between sending command to turn on a light and the light actually turning on.

I’m curious as to the cause of this? When using the Ikea Tradfri remote, the response time is almost instantaneous. I think the remote is acting directly on the bulb via Zigbee and bypassing the hub.