Apt updating problems, need help to resolve this.

[mvalor2020]

I'm vheckin

lets take a look at your DNS connection it should look something like this
View attachment 20949
where it says server 192.168.1.3 the line below it should be blank type in 8.8.8.8 into that line and click apply - maybe your local DNS is corrupted not letting you reach all websites so the 8.8.8.8 is for Goggle server - once done reboot or you can run sudo systemctl restart NetworkManager and check sudo apt update again

I'm checking right after applying time shift since I took out the brave browser. But I will be back to square one again. The whole problem started when I could not get my wifi started and eventually found "sudo modprobe wl" command to link up my internet.

 

[GatorsFan]

I could not get my wifi started - sudo modprobe wl

Before doing anything else lets take a look at your WiFi adapter
this sudo modprobe wl is usually associated with Broadcom WiFi adapters
what is the output of

inxi -Nn

lspci -vnn | grep -i net

post back the results of each

 

[mvalor2020]

This site can’t be reached​

Home - Linux Mint

Linux Mint is an elegant, easy to use, up to date and comfortable desktop operating system.

www.linuxmint.com

is unreachable.


ERR_ADDRESS_UNREACHABLE

 

[mvalor2020]

Before doing anything else lets take a look at your WiFi adapter
this sudo modprobe wl is usually associated with Broadcom WiFi adapters
what is the output of

$ inxi -Nn
Network:
Device-1: Broadcom and subsidiaries BCM4352 802.11ac Wireless Network
Adapter
driver: wl
IF: wlp4s0 state: up mac: 28:e3:47:a1:34:e7
Device-2: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet
driver: r8169
IF: enp5s0f1 state: down mac: c4:54:44:1a:10:f7
IF-ID-1: pan1 state: unknown speed: -1 duplex: unknown
mac: c2:91:ea:94:d3:aa

then:
~$ lspci -vnn | grep -i net
04:00.0 Network controller [0280]: Broadcom Inc. and subsidiaries BCM4352 802.11ac Wireless Network Adapter [14e4:43b1] (rev 03)
Subsystem: Lite-On Communications Inc BCM4352 802.11ac Wireless Network Adapter [11ad:6606]
05:00.1 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 14)
Subsystem: Acer Incorporated [ALI] RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [1025:079b]

 

[GatorsFan]

$ inxi -Nn
Network:
Device-1: Broadcom and subsidiaries BCM4352 802.11ac Wireless Network
Adapter
driver: wl
IF: wlp4s0 state: up mac: 28:e3:47:a1:34:e7
Device-2: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet
driver: r8169
IF: enp5s0f1 state: down mac: c4:54:44:1a:10:f7
IF-ID-1: pan1 state: unknown speed: -1 duplex: unknown
mac: c2:91:ea:94:d3:aa

then:
~$ lspci -vnn | grep -i net
04:00.0 Network controller [0280]: Broadcom Inc. and subsidiaries BCM4352 802.11ac Wireless Network Adapter [14e4:43b1] (rev 03)
Subsystem: Lite-On Communications Inc BCM4352 802.11ac Wireless Network Adapter [11ad:6606]
05:00.1 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 14)
Subsystem: Acer Incorporated [ALI] RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [1025:079b]

open your synaptic package manager and search for - firmware-brcm80211 to see if it is installed or not as well as broadcom-sta-common

 

[Trenix25]

In order for me to upgrade from Linux Mint 20.3 21.3, it would be necessary first to access the link

https://linuxiac.b-cdn.net/wp-content/uploads/2022/08/mint-20-3.jpg

However, my access to certain websites are restricted. On this one I get a message: "

This site can’t be reached​

https://linuxiac.b-cdn.net/wp-content/uploads/2022/08/mint-20-3.jpg

is unreachable.

ERR_ADDRESS_UNREACHABLE"

Some websites are available such as youtube, facebook and linux.org, but others such as X (twitter) are not.
This is why the update manager is not working.

So I need to get over this obstacle first to upgrade.
Any ideas?

Use ip a to see if your network interface has both an IPv4 and IPv6 address. Some websites have IPv6, but not all of them do. If your network is only using IPv6 will not be able to connect to websites that only use IPv4.

Signed,

Matthew Campbell

 

[Trenix25]

Be careful with your choice of DNS providers. Asking Google 8.8.8.8 or 8.8.4.4 tells Google everywhere you go. Google loves data. You might try Cloudfare at 1.1.1.1.

Signed,

Matthew Campbell

 

[Brickwizard]

try this link [it should take you to Harvard school of engineering download site for the current mint 21 [download should start immediately you click the link] https://mirrors.seas.harvard.edu/linuxmint/stable/21.3/linuxmint-21.3-cinnamon-64bit.iso

 

[Brickwizard]

I have the same Broadcom wi-fi as you
go to the software manager in the search box put Broadcom and enter, make sure yours has the same boxes ticked as mine

 

[bob466]

When I do a clean install of Mint Cinnamon...I'm asked do you want to connect to the internet...of course I do.

I then select my Wi-Fi...enter my Wi-Fi password and I'm right to go...this only applies to a Laptop. Once the Distro is installed...one of the first things I do is change my DNS from my ISP's...very important.

If I didn't encrypt my DNS I'd choose Cloudflare 1.1.1.1,1.0.0.1 you must type it as shown and don't forget the comma.