Question Can't connect to my home wifi ?

[Rapplegarth]

I have an Acer aspire ax3960 that i installed Ubuntu version 22.04.1 LTS onto. About a week ago it stopped detecting my home WiFi and I can't seem to figure out why. I have tried updating my router and factory resetting the router. All my other devices can detect and connect to the WiFi except for my Xbox 360 which stopped the same time this PC did (not sure if this is related just an interesting find, the main issue is the PC).

Both the 360 and this PC can detect every other WiFi in my neighborhood, just not my home WiFi. Has anyone ever experienced this and know a fix or a reason why this happens? If its needed the wireless NIC in my PC is a Ralink RT3090.

 

[Ralston18]

Any specific error codes, pop-windows, etc. displaying when the Aspire and Xbox fail to connect?

Anything "common" to the Acer Aspire and the Xbox 360? Maybe an access point?

My thought is an IP address conflict.

Check the IP addresses assigned to all network devices; wired and wireless.

The router may provide some listing of connected devices that you can use as a checklist.

From a connected Windows PC run "ipconfig /all" (without quotes) via the Command Prompt. Post the results.

Also run "arp -a" and post.

 

[Rapplegarth]

Any specific error codes, pop-windows, etc. displaying when the Aspire and Xbox fail to connect?

Anything "common" to the Acer Aspire and the Xbox 360? Maybe an access point?

My thought is an IP address conflict.

Check the IP addresses assigned to all network devices; wired and wireless.

The router may provide some listing of connected devices that you can use as a checklist.

From a connected Windows PC run "ipconfig /all" (without quotes) via the Command Prompt. Post the results.

Also run "arp -a" and post.

No error codes, its not that they are failing to connect they won't find the network at all. When I look at my available connections it displays all my neighbors networks but will not display my own. When i get on my phone, laptop, or ipad I can find my router and connect. On these two it will only show the other routers around me which I don't have access to. I can go into the settings and see the remembered networks and have unremembered them to see if I that did anything but it did not work.

 

[JohnMGotts]

Can you ping your router ip?
If both devices are failing, there is a common point failure of both, be it access point or router.

 

[Ralston18]

Two things to dig deeper:

1) Look in Reliability History and Event Viewer for any error codes, warnings, or even informational events that occur just before or at the times you attempted to connect to the network. Reliability History is much more user friendly so start there. Event Viewer requires more time and effort to learn to navigate about and understand the results. No need to rush, just take your time and get a sense of it all.

2) Netsh WLAN commands.

Reference:

https://lazyadmin.nl/it/netsh-wlan-commands/

The immediate objective is just to get a different look at what Windows is "seeing" or "not seeing".

Specifically via the "show". I do not recommend using the commands to make any immediate changes.

What you can do is compare the command results between devices that do find the network and those devices that do not. Determine what is different with respect to configuration settings versus differences such as names, etc..

Then the next thing will be to try some configuration changes as warranted. Carefully and methodically, changing only one thing at a time and allowing time between changes.

Look first, print out screens for easy reference and comparisons.

And Powershell can be used to delve even deeper if need be.