We have a server that's been working well for several months, and it has developed a new problem. Every time the PC is booted, or asterisk is restarted, we get constant transmit on all nodes. The URI's show their red Tx light, and when I stop Asterisk, the transmissions stop. That indicates that the tx signal is coming from Asterisk. We can disconnect various receivers from the repeaters, and we still get solid Tx, so I doubt this is a signal breaking squelch. If we unplug the URI's while this is happening, the Tx stops, but the node won't work after that. I've restored an old working configuration, so I don't think it's anything I've changed recently. Suggestions for troubleshooting this would be welcomed. VE3GIH Gord Hewit 416-779-3740 (mobile)