Wi-fi Unable to Connect to Localhost

[dos2unix]

You can connect via phone hotspot, but not through your wi-fi router?
When you are connected, it tries to re-route you to the internet through localhost?

This doesn't seem to a problem with your wi-fi in Linux. This could be a router or DNS issue.
What is the output of..

resolvectl

 

[NotTechy]

Thank you to everyone who has responded.

Sorry, I didn't purposely leave out info on my laptop. I have a Dell Inspiron 7000, but I don't remember exactly which version of Windows it was, I just remember it basically forced me to upgrade to 10 and that was my last straw with Windows.

But, anyway, the way I normally connect to wi-fi is to go to the Network Manager and slide the wi-fi to on, it would then connect to one of the devices in the list that it is set to automatically connect. It already has the password stored so would not ask. But now, it just won't connect. Sometimes it wants me to accept that password and sometimes it doesn't give me the choice. I have told it to forget those devices and then added them back, but that hasn't worked either.

The other issue I'm having occurs when I'm connected by ethernet - I had never heard of localhost before I started having this issue and don't know why it wants to connect to it. For example, I am connected right now. I just opened another tab, ran a search and it worked and I was even able to go to the second page of results. But when I opened another tab, and tried to search, it said it couldn't connect to localhost. Closed that, opened another tab and tried again - and it worked. Grrrr.

I'm probably going to try what Bob466 suggested and try to reinstall Mint from a download. But in the meantime I'm still searching and trying stuff.

In case this is helpful, yesterday when I did "nmcli device status," it showed my wi-fi devices as "unavailable." I did it today and it says they are "disconnected." So one of the searches I ran a few minutes ago was for a way to connect them. And this was the result of that:

While it was trying to connect, it did have the pop-up for authentication, but still would not connect.

Dos2Unix -

1. Yes, that's correct, I can connect through the phone hotspot, but not the router. But others in the home can connect to the router with no issues.
2. It does have the localhost issue when I'm connected through ethernet, but I don't think it did while connected to the hotspot.

And here's the output of "resolvectl" -

 

[NotTechy]

I did "nmclii connection show" and here is the result. It goes down further than this screenshot with the "lines 1-6/6 (END)" at the bottom and when I closed the terminal it said it was still in process so I just ended it. Is this normal?

 

[NotTechy]

Since my VPN is contained on my router, I checked with ExpressVPN to see if I needed to change something and they said "no."
So I came across another command to show more info and here are the results. it says my network is disabled.

Thanks again for any thoughts.

 

[bob466]

Can you download Mint Cinnamon 22.1 from another computer ?

This would be the way to go...download the ISO...run the checksum...
https://www.linux.org/threads/how-to-run-the-checksum-in-mint-cinnamon.56891/

Then install on the Laptop...make sure you select the correct WIFI network and enter your WIFI password...type it exactly as it is shown...it then should say...connected...easy.

 

[NotTechy]

Thanks so much to everyone for continuing to offer suggestions!

Since I connect by ethernet, I could download it using this computer.
Not quite ready yet, but almost there.
I'm sure that after I download it, I will have a ton of questions - like how do I replace this version with the new one without losing my Thunderbird settings, Thunderbird local folders, Keepass entries, etc. I save all my documents and photos, and back up my system to USB, but when I updated to 22.1, I spent days re-configuring Thunderbird and re-typing Keepass entries (I don't use cloud). Plus I couldn't figure out how to access the back up from the previous version.
So, although I know that a new installation will probably be what I have to do - and you have given great links for information on how to do it - I'm still a little hesitant.

 

[theLegionWithin]

I'm sure that after I download it, I will have a ton of questions - like how do I replace this version with the new one without losing my Thunderbird settings, Thunderbird local folders, Keepass entries, etc. I save all my documents and photos, and back up my system to USB, but when I updated to 22.1, I spent days re-configuring Thunderbird and re-typing Keepass entries (I don't use cloud). Plus I couldn't figure out how to access the back up from the previous version.

not something I've tried myself, but Thunderbird has a export/import tool --> https://support.mozilla.org/en-US/kb/thunderbird-export

 

[KGIII]

To keep Thunderbird the same (they haven't had a breaking upgrade in a number of years), you just preserve the ~/.thunderbird directory to a different drive and then copy it back when you've done your installation. It's really safe and easy to just do OS upgrades to new versions, however. This is pretty much a solved problem.

 

[dos2unix]

It looks like you have two connections... and two default gateways...
wi-fi and ethernet. So your computer is confused on which connection to use.
Since they are both on the same subnet, you probably have a routing loop.
Try killing all the connections but one.

(It doesn't really matter which one).

 

[NotTechy]

How do I kill connections?

 

[NotTechy]

Here is the list under Network connections: