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Old 03-26-2017, 12:52 PM
 
7,933 posts, read 7,344,728 times
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Acer Laptop, 2-1/2 years old, will not accept any Wi-Fi signal when other Wi-Fi devices in the same location do. Grandson set his phone up as a Wi-Fi hotspot in another location and laptop would not pick up that signal either.

I have run many diagnostic tests, i.e. I have searched "Can't find Wi-Fi signal," Can't find internet," "Finding Wireless Hotspots," and always get the same results. Computer says "cannot find valid IP address."

Could this be internal software issue or possible hardware problem? Have I done something to cause this?

Please HELP!!!
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Old 03-26-2017, 01:28 PM
 
Location: Raleigh, NC
2,348 posts, read 3,536,575 times
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Quick and dirty solution, check this first:
Some laptops have a hard switch for the WiFi antenna. (It's an excellent security measure since it can't be hacked with anything other than a fingernail). It will almost certainly have a tiny LED on/off lamp, so look for that too.
Others have a soft-switch (IE: a combination of keys, pressed to toggle the WiFi antenna).

Other Steps to follow:
Did you confirm that the house-WiFi is working?
IE: can you connect to it with something else, say your grandson's cell?
* Use the cell's browser to run a WiFi diagnostic to confirm signal strength. I like "WiFi Analyzer"

Have you been able to use your laptop to connect to any other WiFi (that's open, IE at a Starbucks)

When you enable WiFi on your laptop, a program should be started that will scan for WiFis and perhaps try to auto-connect to your house-WiFi (if configured correctly in the past).
Describe this process so we can get clues as to why it fails.
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Old 03-26-2017, 03:18 PM
 
133 posts, read 67,425 times
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Reboot computer. Reboot router. ALWAYS works. IF it doesn't. OH well.
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Old 03-26-2017, 03:42 PM
 
Location: (six-cent-dix-sept)
5,079 posts, read 2,583,576 times
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Quote:
Originally Posted by staywarm2 View Post
...

Could this be internal software issue or possible hardware problem? Have I done something to cause this?
...
boot it up using something like fedora live-usb. if it worx in fedora then the windows configuration is mashed up. if it doesnt work in fedora then the hardware is probably bruk up.
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Old 03-26-2017, 03:59 PM
 
Location: Florida
4,743 posts, read 4,068,346 times
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Is the wifi turned off? Airport mode?
Try to add a new network for the wifi.
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Old 03-26-2017, 06:07 PM
 
Location: Sun City West, Arizona
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Speaking of that...what exactly is "airport mode"?
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Old 03-26-2017, 07:57 PM
 
Location: Florida & Cebu, Philippines
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Reboot the router and modem, sometimes my wife's tablet or one of our phones will do that, once rebooted all work again.
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Old 03-26-2017, 08:05 PM
 
2,360 posts, read 1,313,438 times
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Quote:
Originally Posted by phetaroi View Post
Speaking of that...what exactly is "airport mode"?
Turns off everything that requires wifi or Bluetooth. Kinda pointless unless you want to be DND situation. I left my cell phone on airplanes many many times, gotten texts and if conditions are right, i gotten a phone call or two.. The phone rings but voice is garbage. But text will work if your not flying too high. short trips less than 2 hours they attend to fly low enough were you can get a signal by the window.
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Old 03-26-2017, 08:42 PM
 
Location: Florida
4,743 posts, read 4,068,346 times
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Quote:
Originally Posted by phetaroi View Post
Speaking of that...what exactly is "airport mode"?
Should have said airplane mode. It lets you turn off the wifi. Usually on phones and portable computers.
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Old 03-27-2017, 09:31 AM
 
Location: Raleigh, NC
2,348 posts, read 3,536,575 times
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Quote:
Originally Posted by phetaroi View Post
Speaking of that...what exactly is "airport mode"?
Airplane mode is setting your phone so it does not transmit cell phone signals (voice or text).
This measure is taken because some aircraft electronics use similar frequencies so a phone transmitting might cause problems. Especially during takeoff and landing.
Since cell phone systems are two way, (phones connecting to towers), this means you can't receive-only as well.

Some airlines forbid all phone transmissions, so WiFi and Bluetooth shouldn't be used, but the FAA's policy is that WiFi is OK if the airplane has it, and Bluetooth is OK as it's very short range / very low power.

Some phones also turn off the GPS. While the actual GPS function is strictly one-way (receiving from the satellites), it's pretty useless unless it's displayed on a map. Some phones have the map data already saved but some download the map data as needed, and that wouldn't be available in Airplane Mode.
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