Hi maxgammuto,
Check the wireless connection in Safe mode with networking.
Refer the following link which has steps to boot into safemode with networking:
Uninstall and reinstall wireless card drivers:
- From the Start screen, swipe up and tap the All apps icon.
- If you have a mouse, right-click on the Start screen and then click All apps.
- Once on the Apps screen, scroll or swipe to the right until you see the Windows System heading.
- Tap or click on Control Panel, located under Windows System.
- Windows 8 will bring up the Desktop and automatically open the Control Panel.
- Tap or click on the Hardware and Sound link.
- In the Hardware and Sound window, click or tap Device Manager, located under the Devices and Printers heading.
- Expand Network adapters from right pane Right–click the specific device you want to uninstall, and then click Uninstall.
- In the Confirm Device Removal dialog box, click OK.
Click on the below link to install Wireless card drivers:
If the issue persists, try updating the update the wireless router's firmware to the latest available.
For more information, I have provided a link below which can fix the issue:
Below mentioned link would also help you with the settings for wireless internet:
Please let me know if you have any other queries.