All indoor cam turned off why ???

Hello,
All my indoor cam turned off for no reason.
Power is fine, internet is fine. When i take off plug then put plug back a lith shows on camera then shuts down and keeps offline. WHY ? any one solved that ?
Many thanks

That’s strange if it’s not coming back on line and staying on line after unplugging it and waiting a few minutes before plugging it back in. that has always worked for me. Is this happening to more than 1 camera at the same time?? If so that is really strange and something else is going on. Are they connected to a home base?? if so try restarting the home base and/or unplug it wait a couple minutes then plug it back in.