Update 06 June 2017
WIFI troubleshooting on Windows 10
One morning, my boss is walking toward my desk, I knew something is not right. He said that he cannot connect to the WIFI and he ask me to check the network first before checking his laptop.
Quickly I checked my laptop and make sure I connected to the network via correct SSID and I can browse internet and email. I came to his office to check the problem. Yes I cannot connect to the correct SSID (DewZ0n4) and I see other SSID around our office. The laptop (Dell i5) seems cannot saw the SSID signal bar, all grey while other SSID have about 2-4 signal bar.
I delete (forget) the network (SSID) and re-create the same SSID manually with their password. This time getting worst, the problem still exist and there is a cross mark show next to SSID name.
My boss is a very smart guy also in savvy in computer related problem, he asking me what is the problem and what I will do to resolve the problem, so I think very hard to make sure I can solve the problem as quickly as possible.
My first idea is to reset access point, but after resetting the problem still exist. I also re-create SSID details after resetting but no change yet I still have cross mark and still cannot connected. I tried other SSID with no cross mark. To my surprise I also cannot connect using other SSID.
So this seems driver problem or hardware problem to me. I tried to un check IP V6 option on network properties and tried to connect to other SSID that doesn’t have check mark and this time the computer allow me to connect.
Good progress, now I have to try to connect using DewZ0n4 SSID. This time I delete the SSID configuration and not re-create it manually. I just double click the SSID name that exist on the list, and type and save password, this time it works, I can connect to DewZ0n4.
OK that some troubleshooting on Windows 10 WIFI, if you need Windows 7 or other operating system to troubleshoot WIFI problem in general you can follow below steps:
WIFI not working – Getting connected wirelessly from laptop to the internet is something common in the busy world today. We do not realize or do not care with it’s existence until we found that our WIFI is not working anymore as it used to be. This seems a little problem but actually its a big problem because you cannot finish most of your job like replying email to your client, sending report to your boss, video conference and more.
Before checking any further please check If your WIFI is turn off
How to fix WIFI not working problem?
Below are several tips you can try on your laptop or desktop computer, if you want your WIFI back online please try following tips:
1. WIFI is off, turn it on
Before thinking too far, check your WIFI whether it turn off or on. I found this case quite often in the office, people turn off their WIFI and forget to turn back on. Depend on your laptop model/type. In the older type, there is small switch in the right side or left side of the laptop. Turn the switch on, usually the indicator lamp also will lit, or will turn from orange to blue or green.
On the newer model you will see the switch just above your keyboard, on the right side. This switch usually also can be turned on by pressing FN key + F2 key or F2 key only depend on your manufacturer.
2. WIFI is not working because disabled
WIFI can be disabled accidentally because only need one click to disabled or enabled. To check the status of WIFI, click start, control panel, network and sharing center, change adapter settings. You will see some network adapter at least 2 network cards. Local Area Network and Wireless Network Connection.
On the wireless network connection, right click, you will see similar picture as below. If you see Disable, then your current status is enabled and vice versa. Make sure you see Disable, if not click Enable to make it work.
3. Reset Access point, modem, or router
Access point, modem and router in the company usually working 24×7. With this condition sometimes they need to be restarted to refresh all memory and make it works again. You need to turn off the device for 1 minute and turn back on to reset all the memory in the device.
The easiest way to restart is by plug off the cable power and plug in again. After restarted some router need about 10 minutes to back online. You may will need to re-start your computer as well.
4. WIFI get different IP address
Sometime I found that WIFI is not working because it has different IP address than it should be. This can happen when someone has changed the IP address manually and never put it back to the previous IP configuration.
To fix the problem: Go to network and sharing center>Change adapter settings Right click Wireless network connection, click properties, double click internet protocol version 4 (TCP/IP v4), choose obtain an IP address automatically, and choose Obtain DNS server address automatically.
Click OK button 2 times. Now you should get the correct address and your WIFI should working.
5. WIFI is connected to other SSID/Network
If you are working in the office complex, you should see many WIFI in your neighbourhood. If your computer automatically connected to the network that is not belong to you then you will not able to connect to your network.
To solve this problem, you should choose to connect manually to other WIFI SSID and to choose automatically connect to your WIFI network.
Open manage wireless network (click start>control panel>network and sharing centre>manage wireless network). As you can see on the picture above that some SSID/Network configured to be Automatically connect or manually connect. If your neighbour network configured to connect automatically change it to manually connect.
Double click the SSID name you want to change and un-check the Connect automatically when this network is in range option.
6. Check Windows Firewall
Windows firewall or other firewall program sometimes can block ports , make sure you turn it off first and see if you can connect. If you can connect to WIFI/Internet after windows firewall being turned off, you should inform your administrator to check if this comply with company policy.
To get to windows firewall, click start>control panel>windows firewall
Make sure Windows Firewall State is off. If it on click Turn Windows Firewall on or off
7. WIFI is not working because hardware is broken
This is the most severe problem but quite rare to happen. To decide WIFI hardware broken you have to went through these first:
- Make sure wireless already turn on
- Make sure WIFI is not disabled
- Make sure using correct WIFI driver
If after check all above and your WIFI still not working, then your WIFI hardware could be broken. If this is happened, you can use network cable to connect to the internet.
To order the original part of WIFI could be long process and takes time. If you need in hurry you can buy USB WIFI to replace your build in WIFI card.
8. Network Problem
If we already did all WIFI troubleshooting above and still have problem, and you are not the only one who cannot connect to WIFI. Let your administrator know, you will not able to fix this from your laptop alone.
Sometimes this happen on the internet provider company, your administrator should chase them to solve the problem as soon as possible.
I hope that you can found and fixed your WIFI not working issue by following 8 tips above, if you find something new add in the comment and I will add to the list after I check.
You can also check following great website for alternatives solution on WIFI not working issue.
If you are savvy on computer, you can follow suggestion from Pcworld like change WIFI channel on the router, restore router’s setting to the default, and upgrade the router’s firmware. You can check here: http://www.pcworld.com/article/260524/networking/how-to-fix-your-wi-fi-network-7-tips.html
Toshiba forum suggesting to check computer drivers, check power management, download new driver, and remove battery laptop and re-attach. You can check here: http://forums.toshiba.com/t5/Networking-Wi-Fi-Knowledge-Base/Troubleshooting-Wi-Fi-Wireless-Problems-Windows-7/ta-p/272967
Howtogeek suggest to check overheating router, check if cable securely connected http://www.howtogeek.com/180235/how-to-troubleshoot-wireless-router-problems/
For Apple’s product WIFI troubleshooting on OS X Mountain Lion and later and OS X Lion and earlier can be found here: https://support.apple.com/en-us/HT202222