I can't connect to my wifi network and the IP address details are blank.

Try resetting Network settings

Open Settings->General->Reset->Reset Network Settings (sorry, I just reread your post & noticed you already tried that 😟)

The IP address details, etc should appear once you are connected to the network.

Have you checked to see if there is a firmware update for your router? Have you contacted your internet service provider, they may have a solution?

Try setting the router back to its factory default settings.

Was your router provided by your ISP or are you using one you purchased separately? Your router should have come with instructions. There is usually a web based setup page you can access. Look at your router's address as shown on your laptop. Key that into the address bar of your browser & that should bring up the router's setup page. There should be option to reset to factory settings on that page.

I used to have a satellite connection to the internet. When ever the power went off I was told to turn on the devices in a specific order for them to work properly.

Try shutting off every device including all iPads, iPhones, computer, Wi-Fi router and Satellite modem. Then turn them on one at a time in the order listed below. Be sure to wait until each device completes its start up routine before starting up the next item. When my satellite modem was restarted it often had to download an update. The time this took varied with the update. So be sure the Satellite modem is up and connected to the Satellite before going to the next device.

1. Satellite Modem.

2. Wi-Fi Router

3. Your computer. Check to see that your computer connects to the internet.

4. iPad or iPhone and remaining devices one at a time.