this will be my second isy that has done this , about three years ago, same thing happened, I was told my box was fried.

 

as of today, replaced all ethernet cables with new, new plm.

i have not changed any routers, I have not changed any modems, NOTHING WAS TOUCHED OR CHANGED.

try to launch the isy from direct line to computer and still unable to connect to the isy.

..............

Was it on a static IP or still using DHCP? Any chance the IP changed? Maybe something going on with your DHCP server? If you have it direct to the computer port, there may not be a DHCP connection. If  the ISY defaults to it's own default IP, your computer may not even be on the right sub net. 

Also, have you researched the blinking light to know what it is telling you? 

I went ahead and just reset the isy, that should have put it back in default

router settings are the same, there is no-one sharing the ip address.

i do not have a static ip, when the ip has changed numerous times over the three years, it would automaticly change/update 

still nothing working

 

Edited February 11, 20205 yr by moxman

Until you can ping the IP, there is nothing else to do. In a direct PC to ISY connection, there is no DHCP to even give the ISY an IP address. Have you looked up the default IP on the ISY so you know your computer is on the right sub net? 

Keep in mind a blinking error / memory LED could reflect a bad Micro SD card. Hope you made a current back up!

If this ISY cannot be recovered I would be getting a good electrician in to check your neutral and grounding. Your utility may offer some service also.

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