I have been using my ISY-99 without issues for a couple years. My setup is not huge but it has worked without fail. I haven't made any changes to my network by the ISY-99 has stopped working.
Recently the ISY-99 has had problems connecting to the network. The MEM and RCV lights are both flashing and I can't figure out what the problem is. Occasionally, the ISY-99 will get an IP address from the router and I can log onto the dashboard. Most of the time, the MEM and RCV lights blink and I can't access it. There doesn't appear to be any pattern to when it receives an IP address. I'll power-cycle the ISY-99 and it won't connect for 30 minutes and then for no explainable reason, it will connect. I have reset my router back to factory defaults thinking that maybe there was some strange artifact in the router database. This didn't fix the issue. I also reset the ISY-99 back to its factory default and this didn't fix the problem, either.
On the router-side, I have tried setting a static IP address for the ISY-99, both in and outside of the DHCP scope. No difference in it connecting- most of the time it won't but occasionally it will.
I'd appreciate any suggestions- it is driving me crazy.
Thanks,
-Allen