There are two phases for connecting to the internet.
1. connect to the router.
2. connect to the internet.
Logically, the router doesn't know one phone from another or a phone from a laptop, or where you are physically at. So having 2 or 3 devices shouldn't make any difference to the router.
Also, some devices will default the the nearest router if it can't get on the one you have specified. Be sure you are getting on the correct router. There may be more than one in the CG.
Try this.
Disconnect all 3 devices from the internet.
Try the laptop first. It should connect to the router which will give it a IP address. Find that IP by RIGHT clicking the 5 bar icon on the lower right of the screen. Click open network etc.
Top right of the screen will show how you are connected to the router and if you are connected to the screen. A little further down on the right side will have the name of the router you are connected to. Clicking the router name will give you the info on your IP address.
If you are NOT on the internet, then instead of clicking the open network, click the troublshoot and let it reconnect to the router.
As one device works, than try the next device/phone. On phones/tables, sometimes I just turn the wireless of and back on again, see settings to to this.
Also, if you know who owns the internet, you can call them. A lot of State parks use Tangonet which can be a problem, but they do answer the phone.
