Lets take a peek at your network environment:
First:
Power Cycle everything . . Turn off the Modem, router and all pc's . . turn on the Modem and wait a few minutes for the lights to stabilize . . then turn on the router, then one pc at a time. See if you connect to the internet.
Then:
Remove all the stored wireless network profiles and search for the network again.
How to Remove Stored Wireless Network Profiles for XP, Vista, and Windows 7 ( This is for Windows 7 but the steps are virtually the same for 8 and 10
Then: check your browser's settings, remove any proxy settings if found,
here's how
Then:
with the pc connected to the router, Click on
Start . .
Run . . type
CMD
At the > prompt type or copy and paste the following command:
ipconfig/all > 0 & notepad 0
and press enter.
Come back here and Paste the results in a message.
If you are on a machine with no network connection, use a floppy, USB drive, or a CD-R disk to transfer a text file with the information to allow pasting it here.
then please Download and run this
Xirrus WiFi Inspector, click the
Networks link on the upper left and paste a screen shot of that screen here. Note that this application requires
NET Framework to run. If you get an error about a missing function, download and install NET Framework.
To post a screen shot of the active window, hold the
Alt key and press the
PrtScn key. Open the Windows PAINT application and
Paste the screen shot. You can then use PAINT to trim to suit, and save it as a JPG format file. To upload it to the forum, open the full reply window and use the
Manage Attachments button to upload it here. For Vista and Windows 7, 8 you can use the
Windows Snipping Tool