Important
Unable to connect to Eduroam network on Windows 11
The problem is probably in the TLS version, which is version 1.3 for the 22H2. The solution is to force TLS version 1.2.
- Run a command prompt with administrator privileges.
- Enter the command
REG ADD "HKLM\SYSTEM\CurrentControlSet\services\RasMan\PPP\EAP\13" /v TlsVersion /t REG_DWORD /d 0xC00 /f
Log out and log back in, you should now be able to connect.

SSID eduroam
The network uses 802.1x authentication (with EAP) through RADIUS infrastructure. The communication is secured by the WPA protocol. These settings need to be configured on your computer or mobile device only once. After the initial configuration, every time your device is in range, it will automatically connect to the network.
If your computer or mobile device is configured properly for the eduroam network, you will be able to gain network access at any organization (Czech or international), that is part of the eduroam project, as easily as at your home organization.
Procedure:
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The username for eduroam consists of the faculty username supplemented with the realm @fel.cvut.cz. That username is unique across the world. For example, if your faculty username is novakj99, your eduroam unique username will be novakj99@fel.cvut.cz.
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Set your eduroam password.
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Use CAT (Configuration Assistant Tool)
Recommendation for configuration:
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Android (CAT) >= 4.3
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download “eduroamCAT” app from GooglePlay and execute it
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choose “ČVUT, FEL” institution
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click on “Android” button under the institution name
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insert your credentials and confirm profile creation
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Android >= 8.0 (geteduroam)
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download “geteduroam” app from GooglePlay and execute it
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choose “CTU FEE” institution and “Android” profile
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insert your credentials and confirm profile creation
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iOS, MacOS (CAT)
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download and install profile
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Windows, Linux (CAT)
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download and execute configuration tool
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insert your credentials and confirm profile creation
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The other possibility is manual configuration. Follow the instructions placed on the portal eduroam.cz. You should set:
Trusted servers radius.fel.cvut.cz Root CA USERTrust RSA Certification Authority
Technical details
- SSID: eduroam
- Authentication: 802.1x
- Protection: WPA2 Enterprise
- Encryption: AES
- Authentication: TTLS/PEAP and MSCHAPv2
- Blocked ports: 25, 137-139
- IP address: public