cannot connect to WPA and WPA-2 enterprise network

I have the same problem!

I could work around this by manually adding a new (hidden) network and copy all settings from another computer setup by hand.

I can also confirm this bug. When I try to connect to the eduroam network by clicking on the corresponding wireless network, all I get is the dialog titled "Networking". There I can choose eduroam again by clicking on the "play" symbol (arrow to the right), then an activity indicator will appear and go on forever. No connection is made, I'm not even asked for credentials. I tested with a fresh install of 17.1 Cinnamon and the latest RC for LMDE Cinnamon.

Other wifi networks are fine.

I also tested with different hardware (builtin wifi adapter and 2 different USB adapters). Makes no difference.

The suggested workaround (selecting a hidden network, here of name "eduroam") works.

This bug is also present for me as well. I can connect to unprotected and WEP protected wireless internet connections, but when I try to connect to my school's wireless internet, which uses WPA2 enterprise security, the network settings window pops up with no options to change or configure the connections and the activity indicator will appear as in the previous comment. I have Linux Mint 17.1 Rebecca.

Wish I could be more technical about this but I just went into the network section. I selected the hidden network option, put my information in and in the section were it mentions TLS by default I messed around with the setting and put it to PEAP which is what my network uses, I think this may be a common University thing though so try PEAP

laricah (mm4902) is right. Just manually create your network using the Hidden Network button. You should be able to get the settings specifics to your organizations WiFi for Windows and find all the setting info you need in there.

Bug is still there in Mint Cinnamon 17.3 beta. Wow.
I confirm workaround via hidden network works.

Workaround via Hidden Network worked for me too. Thanks.

Tried everything, including the above ideas. Still can't connect to WPA2/enterprise wifi. Am using Linux Mint Cinnamon 18beta. Had really hoped 18 would fix things, especially as there was a raft of WPA fixes in an update earlier today. But no. My card is an intel 7260. Help!

Issue still exists in Mint 18 Cinnamon. Adding details via hidden networks allows connection

I confirm, issue still exists in Mint 18. I'm on a fresh install of Mint 18 64bit.
OS: Mint 18 Cinnamon 64bit
Cinnamon: 3.0.7
kernel: 4.4.0-53

Via Hidden Networks method not work for me; is present only LEAP auth, and I need PEAP authentication. I've also try using LEAP but does not work.

I've also try to edit manually /etc/NetworkManager/system-connections/*SSIDNAME* file without results. I try to connect, connection fails and is asked to me to insert password (as when during a login, is inserted a wrong password). I retry to connect but fails.
And now if I check configuration file under /etc/NetworkManager/system-connections/ is overwritten with system configuration.

sorry, my mistake, via Hidden Networks is now working.
But I confirm the issue, without this trick I'm unable to connect to this kind of network.

This issue is present on Cinnamon 18.1 on a wireless network that uses Aruba hardware and WPA2 Enterprise PEAP authentication. Setting the network up manually as a hidden network and telling it that no CA cert is needed worked for me.

For our particular location, this could be triggered by the fact that the CA certificate normally appears as invalid. On Windows/Mac systems, users always have to tell their machine to trust the connection in spite of the error. I'm thinking perhaps there is no built in handler for that kind of issue in Mint?

I have this issue and even configured the network manually. It connects but keeps disconnecting. This on Linux Mint 17.3. (eduroam as well for those wondering)

I can confirm the problem on a fresh install of Mint 18.1.
I solved the problem by chance but this information could be useful to solve this issue. The prompt windows "Wi-Fi network authentication required" appeared when I tried to connect to the protected wifi network while I was in safe mode after Cinnamon crashed (I was trying to get the Nvidia video card working properly).

I can confirm this problem also on my fresh installed Lix Mint

I also cannot connect to WPA2 enterprise wifi on linux mint 18.2 using the network manager interface. However if I add the network manually using "connect to hidden network", then I can get it to work.

If the bug is not going to be fixed, I would at least suggest renaming the button "connect to hidden network" as "manually configure connection" or something like that.

I freshly installed Linux Mint 18.2. This bug should be fixed as the distribution I used before had no problems here. I changed to Mint, because I thought it was easier and simpler to use, but it took me quite a while to find the workaround via "connect to hidden network".

The problem as I have faced earlier is due to unsupported protocols in the earlier version though now you can simply connect to it. Make sure your device is registered with your campus as their server checks all the connection mac address to connect and authorize the user. Chances are you didnt do this.They will provide you with your user name and password needed to login to their networks.

Status changed to 'Confirmed' because the bug affects multiple users.

Still a problem on Mint 18.3 64-bit
Kernel 4.13.0-32
Cinnamon 3.6.7

This bug has been being reported on now for 3 years without anyone assigned to it. What do we need to do to move it forward?

I don't use linux mint but in debian sid and ubuntu bionic I'm unable to reproduce issue with wifi settings.
I'm using cinnamon 3.6 from official repository.
In debian/ubuntu cinnamon packages there are 2 network patches not still applied upstream (so that could make the difference), in particular https://github.com/linuxmint/Cinnamon/pull/7118
Someone that had issue can test with bionic cinnamon packages and report if issues are still present please? (except network device driver missed that is not related to cinnamon)

This problem affect Linux Mint 19 Tara, Adding details via hidden networks does not work!!!

Hi,
You need to remove the Cinnamon Network Manager Applet from the System Tray section of the Panel and install the Gnome Network Manager Applet. After...all is good!

Hope it helps.

Can somebody try the following fix?

https://github.com/linuxmint/cinnamon-control-center/pull/220

this is solved in
cinnamon-control-center 4.2.1