11
votes
Wifi problems with rtl8723be in Ubuntu 14.04
My friend's HP laptop wouldn't display the available Wi-Fi networks.
So I followed the steps from Miodrag Prelec's answer till echo "options rtl8723be fwlps=0" | sudo tee /etc/modprobe.d/rtl8723be....
- 379
11
votes
Accepted
I can only ping google and ubuntu
It looks like these having A and AAAA-Records registered properly:
google.com
youtube.com
ubuntu.com
It looks like those dont have / misconfigured AAAA-Records but have A-Records:
github.com
cnet....
- 226
11
votes
Accepted
Ubuntu 22.04.1 LTS - Hotspot - Connected but without internet on Android 11
Now I am able to connect correctly from android device on the hotpost created on Ubuntu 22.04.1 LTS. More probably by updating the system frequently but additionally by trying to disable firewall too ...
- 191
10
votes
SSH resets to default port on reboot
ssh may be "socket activated" by systemd depending on configuration, which means that initially it is systemd that sets up the listening port, and sshd is only started when a client first connects. ...
- 15.8k
10
votes
Topic: Ripper X & Asunder CD Ripper
This happened because of FreeDB CDDB downing:
freedb.org and its services was scheduled to be shut down on March 31 of 2020. As of May 28, 2020 the site was still operational.
On the 13th of June ...
- 101k
8
votes
"ssh localhost " command is showing 20 bad configuration options
Open the /etc/ssh/ssh_config and remove all the listed options. They are supposed to be part of the sshd_config (the server configuration), not the client one.
- 6,655
8
votes
Accepted
error message when using wget to Internet : Connecting to localhost (localhost)|::1|:8080... failed: Connection refused
The output of the wget command suggests that you are using a proxy.
Run the following command on the same terminal that you are running the wget command:
$ env | grep -i proxy
Then run unset ...
- 11.8k
7
votes
Can not connect Arduino IDE with Arduino Board on Ubuntu 22.04
This bug was mentioned in;
https://bugs.launchpad.net/ubuntu/+source/brltty/+bug/874181
it is caused by the brltty daemon as mentioned. Another way is to disable it by;
systemctl stop brltty-udev....
- 71
6
votes
Connection could not be found
To try and check where your wifi issues may be, troubleshooting using these commands in a terminal (Ctrl + Alt + T) can be handy:
Check status of connectivity: nmcli networking connectivity
Check ...
- 788
6
votes
Accepted
Can establish connection, but still get "connect: Network is unreachable"
Based on your ifconfig output, it looks like the connection is established at the OSI link layer, but that the interface is not assigned an IP address.
There are several possible explanations for ...
- 139k
6
votes
Accepted
Nautilus - Connect to Server option not visible
You should:
Enable leftside bar with F9 (skip this step if it is already enabled).
Click on Other locations
Find Connect to Server in the buttom of the window:
Enter address with protocol - one from ...
- 101k
6
votes
Accepted
Can't use internet because networkmanager has disappeared !! (Ubuntu 20.04 LTS)
In the absense of Network Manager, I suggest that you use netplan. From the terminal, do:
ls /etc/netplan
Find out the name of the file. Make a backup as you will need it after reinstalling NM:
sudo ...
- 60.7k
5
votes
Cannot connect Ubuntu to starbucks wifi network
The issue is it recognises that the WiFi connection is trying to “hijack” the secure connection. It prevents this.
To avoid this, navigate to http://neverssl.com. This webpage will never use HTTPS ...
- 33.2k
5
votes
My browsers can not connect to the internet while my Ubuntu is connected
This occurred to me when I updated firefox. It occurred because by default firefox use IPv6 protocol. You need to disable that.
Try this:
1) In search tab, type about:config
2) Accept the safety ...
- 321
5
votes
Accepted
Network Unreachable - Ethernet
In Ubuntu 18.04 and later, ifup/down, implemented by /etc/network/interfaces, is replaced by netplan. Therefore, please revert the faulty entries. From the terminal:
sudo nano /etc/network/interfaces
...
- 60.7k
5
votes
Accepted
Bluetooth earbuds constantly reconnecting (Sennheiser Momentum TW 2)
I had this issue as well and just spent many hours attempting to solve it. I've narrowed it down to an issue with the AVRCP profile (controls the media buttons).
As a work around you disable AVRCP ...
- 771
5
votes
Can not connect Arduino IDE with Arduino Board on Ubuntu 22.04
sudo apt remove brltty
reboot the computer
...solved the problem (ports are now available and I can connect the Ardino IDE to the board).
- 202
4
votes
Wifi Connection Issues on Ubuntu 16.04
Sometimes, wireless gets disconnected because of settings in the router. First, most routers are set by default to the lowest common denominators including WPA and WPA2 auto-select, AES and TKIP auto-...
- 60.7k
4
votes
Accepted
I keep getting DNS_PROBE_FINISHED_BAD_CONFIG error. How can I fix this?
Try
sudo dhclient -r interfacename
sudo dhclient interfacename
where interfacename is yours (mine is eth0)
This will release and renew your Ip address.
If this doesn't help, The COX DNS servers ...
- 36.2k
4
votes
Accepted
My browsers can not connect to the internet while my Ubuntu is connected
I had the same problem and solved it by the following steps:
1) Open FireFox and enter about:preferences in the URL.
2) In the General tab scroll to the bottom.
3) Under the Network Proxy header ...
- 160
4
votes
Ubuntu Server 18.04 setting WiFi connections when install
You need to use the older version of the installer aka. "the d-i installer". When I say "older version", it's still an installer for Ubuntu Server 18.04, it just uses the installer framework ("d-i") ...
- 3,432
4
votes
Accepted
Refused to connect-to same machine's local ip address (192.68....)
Hello and welcome to AskUbuntu!
As you can see from netstat, your service is listening only on localhost:
tcp 0 0 127.0.0.1:8080 0.0.0.0:* LISTEN 5879/ng
...
- 3,214
4
votes
Server: After upgrade from 16.04 to 18.04 ssh and ftp refuses connections
Actually, turned out my provider has a rescue mode in which I could figure out the problem and fix it.
The OpenSSH version got update to a newer one. My OpenSSH configuration was invalid with the ...
- 71
4
votes
Citrix not connecting in ubuntu 20.04
After fighting for long with this issue, found some link where its mentioned to try disabling ipv6 and it should work.
referred this link to disable ipv6
https://itsfoss.com/disable-ipv6-ubuntu-linux/
...
- 141
3
votes
Cannot connect to Eduroam
We use eduroam at the university where I work; I connect to it myself when our primary wifi is being awkward. If you've definitely removed the previous connections, try the following connection ...
- 131
3
votes
Accepted
Virtualbox.org site unavailable
I saw this happen to a number of people when I was an active moderator on Vatsim, who has thousands of members. They would have a friend contact us that they couldn't access the site.
You can also ...
- 25.2k
3
votes
Accepted
Webpage connection - coffee restaurant
Did you try to access any unsecured¹ web sites yet? Many public wireless hotspots require you to agree to their terms of service and redirect you to their terms of service for that purpose upon you ...
- 36.5k
3
votes
Bluetooth connection to HC-05 paired but not connected
The suggestion from ubfan1 is complete and uses rfcomm to establish a connection with a bluetooth device. If it doesn't work you should try what follows:
I am using rfcomm and minicom to exchange ...
- 255
3
votes
Wifi problems with rtl8723be in Ubuntu 14.04
I faced a similar situation, I took the suggestions available on various sites, and created this script which works for me.
Here it is on GitHub
To clone the repo, run:
git clone https://github.com/...
- 166
3
votes
My browsers can not connect to the internet while my Ubuntu is connected
I had the same problem and I solved it by modifying the resolver configuration file with the following steps:
Open the file /etc/resolv.conf
Change the line:
nameserver x.x.x.x
to:
nameserver 8.8.8....
- 31
Only top scored, non community-wiki answers of a minimum length are eligible