Network's IP Changed and lost internet connection

[Acol122792]

So the IP Addresses of the computers in my networks are 10.188.99.100-199

Suddenly we encountered power outage for a few seconds. After it my the computers ip addresses in the network is now different. And I cannot access the internet and network anymore.

Help please, I've tried restarting the modem,router and switch still nothing happens

[nkarthikeyan]

You need to check layer by layer then....

From where you get the DHCP IP?

from where your NAT / PAT is done?

Regards

Karthik