Raspbian Can Only Connect to One Secure Wifi but Not Another

FIX: Raspberry Pi not connecting to Wi-Fi / Ethernet

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If your Raspberry Pi is not connecting to WiFi, this guide will prove very useful.
To start resolving this problem, remove the underscore sign in your SSID, and restart your home network.
Don't hesitate to visit our all-encompassing Programmer Tools section for more in-depth data on the subject area.
It could never injure to have useful data hands-accessible, so don't forget to bookmark our detailed Raspberry Pi Errors Hub.

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If your Raspberry Pi is non connecting to WiFi or Ethernet, you need to check your WiFi router if the internet is working or not. If the internet is not working, try resetting the WiFi router or the modem to resolve the issue. In case the outcome persists, the problem is most probable with your Raspberry Pi.

Several users have reported similar issues in the official Raspberry Pi forum:

My RPi iii B+, which I've had for a couple years now, has recently refused to connect to the internet. I take it connected to ethernet because the wifi connection is weak in this part of the business firm. I cannot successfully ping its hostname or IP from whatsoever other computer in the house.

In this article, nosotros have listed a couple of troubleshooting tips to aid you fix Raspberry Pi not connecting to WiFi and Ethernet issues.

What to do if my Raspberry Pi is not connecting to Ethernet/WiFi?

ane. Check for issues with SSID

If the Raspberry Pi has an issue connecting to your WiFi network, check the SSID for invalid characters.
Make sure your network name (SSID) does non have an underscore in it.
Remove the underscore, and and so try to connect your Raspberry Pi to the WiFi network.
Removing the underscore has helped several users resolve the issue.

Additionally, if your router supports both 2.4GHz and 5GHz wireless network, try using the 2.4GHz network. Try connecting the device to the network over again and bank check for whatever improvements.

2. Bank check your abode network for bug

Reboot the router

Turn off the router and unplug the ability from the wall outlet.
Turn off your WiFi router if you are using one.
Disconnect the Ethernet cablevision connected to your modem.
Exit the router idle for a minute.
Reconnect the ability and turn on the modem and your WiFi router.
Once all the lights stop blinking, connect Raspberry Pi, and check for any improvements.

Check Ethernet port and cable

Make sure the Ethernet cable is working by connecting straight to your PC.
If the Ethernet cablevision is non working, consider replacing the cable.
Endeavour using a different Ethernet port on your router to cheque for problems with the port.

If the issue persists, consider updating your WiFi router's firmware. Restoring the router settings to factory default and then reconfiguring the network device can also help if the result is due to your home network and not Raspberry pi.

Is Raspberry Pi not showing up on the network? Effort these solutions

three. Reinstall Raspbian image

Download the latest version Raspberry Pi imager to your calculator.
Run the installer to install the Raspberry Pi imager.
Connect an SD carte reader with an SD carte inside to your reckoner.
Open Raspberry Pi imager, and make certain the SD card is detected.
Choose the required OS from the list presented.
Choose the SD card y'all wish to install the OS on.
Click Write to brainstorm the installation.
Once installed, reconnect the SD card to your Raspberry Pi and bank check for any improvements.

If reinstalling the latest version of Raspbian did not assist, try downgrading to an older version to see if that works.

Check for hardware bug

If the issue persists, cheque your Raspberry Pi Ethernet port for hardware issues.
Connect an external Ethernet adapter to the device and check if the cyberspace works.
In example the net works, the Ethernet port on your Raspberry Pi is faulty.

Your Raspberry Pi device may terminate connecting to the WiFi if it detects issues with the SSID or other network configuration. All the same, when the issue is with your Ethernet connexion, it is usually a dead Ethernet port that is causing the consequence.

Frequently Asked Questions

How exercise I reset my Raspberry Pi WiFi?

Open up the final on your Raspberry Pi and blazon sudo nano /etc/wpa_supplicant/wpa_supplicant.conf. Delete the WiFi network that you want to reset. Press Ctrl + X, and then enter Y to salvage the file.
Tin can Raspberry Pi 4 connect to WiFi?

Aye, the Raspberry Pi 4 comes with a born WiFi adapter that allows you to connect to your domicile and another wireless network easily. Y'all can connect to the network via terminal or by clicking the wireless symbol in the top-right corner of the Pi's desktop.
Does Raspberry Pi have congenital in WiFi?

Only Raspberry Pi 3 or newer versions have built-in WiFi.

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Source: https://windowsreport.com/raspberry-pi-no-connect-internet/

Raspbian Can Only Connect to One Secure Wifi but Not Another

FIX: Raspberry Pi not connecting to Wi-Fi / Ethernet