Need help

[Gahansen93]

So I help a friend set to his internet at a business he owns. The Internet was running through a Linksys router and I helped him set up the app. Well the Internet was running fine and then he accidentally rebooted the router to factory settings. And now no matter what I do I can’t seem to get the router to work. The modem works fine and the Internet is fine and gets to the router alright but the router WiFi or even Ethernet won’t work. It’s not letting me use the Internet. I even tried using a different router and that one is having the same exact issues. I don’t know what to do at this point. Thank you. I forgot to mention that the place is big and has 2 buildings. Each building has its own router and the other router is working fine.

 

[Pierino]

Reboot the modem.

 

[Gahansen93]

Reboot the modem.

I’ve tried unplugging the router for a few minutes and plugging it back in.

 

[Pierino]

Not the router. The modem.

 

[Gahansen93]

Not the router. The modem.

Sorry I meant the modem

 

[Val D.]

rebooted the router to factory settings. And now no matter what I do I can’t seem to get the router to work.

Sounds like IP conflict to me.
Is the modem's default IP and the router's default IP the same by chance?