Hello Everyone, I encountered the most bizarre problem yet with app_rpt and URI's tonight. While using my new HF remote base and VHF remote base simultaneously, app_rpt consistantly got really confused. After a fresh asterisk start, I could try to connect to the HF node. While connecting, app_rpt would simultaneously disconnect! --So, I'd hear the connected message and a disconnected message at the same time! Then, I couldn't connect to the node again, and sometime couldn't connect to VHF node, either. This problem has been happening very intermittantly for a month now and I couldn't find what was causing it. But, it hadn't been severe enough to really get my attention. While searching thru the config files trying to figure out what I'd broken, I happened to notice this kernel message: kernel: hub 2-0:1.0: port 6 disabled by hub (EMI?), re-enabling... So, I experimentally put ferrite split cores around each USB cable, right at the URI--And the problem instantly disappeared! Eureka!! So, if anyone sees flakeyness or other strange URI problems that come and go, RFI could be the cause! 73, David KB4FXC