Wireless pci card cant connect to home network but can connect to others.

[MrChrissyD]

I seem to he having a unique issue with my wireless, stuggling to find if the culprit is the hardware (router/pci card) or sortware (windows 10)

I have a tp-link WND4800.

Whenever I turn my computer on it wont connect to my wifi but it can find it but trying to connect ends up with the message "cannot connect to this network" after a while of trying eventually to will connect. So it does eventually connect but I am talking sometimes an hour if not longer. Yet every other device in my house can connect fine, a laptop running win 10, 3 android phones, a win 8 and win 7 laptop. My computer can also connect to other networks without a problem it is just my home network I cant seem to connect to.

The fixes I have tried are, re-installing/updating drivers. Turning off ipv6. Reseting everything including factory resetting my router. Changing the Wlan to auto in adminstration tools. Making sure no power management is stopping it. Changed the channel on the router. Changing the password.

Everything seems to make no difference, it is still pot luck whether I connect to it or not but when I do it is a stable connection with <1% packet loss.

Update: I ran acrylic wifi home software to see what is happening there and the RSSI (recieved signal strength) keeps going to 5 bars to 0 every 5 seconds. Up and down constantly.

 

[Joe Porter]

You have tried a lot of fixes already by the looks of it. Can you try connecting via an ethernet cable to see if the problem persists? Also try forgetting the network and rejoining it.

Windows key + I > Network and internet > manage wifi settings > click forget network next to your home network.

 

[Kirk_2]

Reloading the WiFi router to factory defaults would eliminate a MAC address filter refusing to connect your particular card.
Reset the Windows networking config, this is default restore of your troubled systems network stack
https://support.microsoft.com/en-us/kb/299357

netsh int ip reset "%userprofile%\desktop"

Note the log file on your windows desktop, save it in case required later, reboot windows.

Retry connectivity, if issues persist:


Download and install Wireshark, it's well known and industry accepted packet capture, doesn't handhold by offering conclusions but a raw packet vacuum for interpretation.

Install WS, reboot.

1. Start WS before attempting WiFi connection
2. Verify real time packet capture, the screen will be a hive of streaming info
3. Attempt WiFi connection, wait until it fails
4. Halt the WS capture
5. SAVE THE CAPTURE TO YOUR SYSTEM
5. Scroll through the list seeking "BootP"/ or "DHCP" packets, right click any of them and select filter for traffic between endpoints that should display the conversation between your system and the router.
6. Be prepared to return to this thread with a description of behaviors, if prompted for UPLOADS of the session or exported conversations, they'll be insightful along with the conclusive causes to why this plagues you.

 

[Inachu]

I had issues like this and the only solution I came up with is buying a new wifi router. Also best thing to remember here when building your home network be it wired or wireless it is to make sure the entire hardware being used in your network are all the same brand. By using the same brand you will cancel out incompatibilities from different hardware vendors. Different hardware has different goals and direction on what certain specs mean to them.