Why does my computer monitor say check digital signal cable after electricity went out briefly?

Cmill5

Reputable
Aug 1, 2015
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The house electricity went out for less than a minute. Now my computer monitor is giving the message to check digital signal cable?
 
Solution
Many routers will lose touch with the outside world after a power failure and all you need to do is to remote the telephone cable and replace it straight away. If that doesn't work, turn off the router for a mnute then put it back on.
Many routers will lose touch with the outside world after a power failure and all you need to do is to remote the telephone cable and replace it straight away. If that doesn't work, turn off the router for a mnute then put it back on.
 
Solution