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Wi-Fi network

Version française 

Which Wi-Fi network should I use?

You must use the cable connection from your room. The wifi network is a comfort network.Normally, we guarantee 4 Mbits and a 70 db coverage.

If you notice a radio coverage problem or you can't connect to wifi network, please report an incident here with this ckecklist below : https://isilog.polytechnique.fr .

• Timestamp of the problem encountered (even approximately)
• Presence zone (office/room number if possible)
• Type of terminal used (manufacturer, model)
• Are the drivers, software and operating system of your terminal up to date? if not, make all updates and redo your test.
• Browser concerned if this is the case (name and version)
• The SSID(s) used during connection
• The error message if applicable
• The MAC address of the terminal having the problem (if it is not random)
• The login used to connect if necessary (+ the domain suffix)
• Check that the page  (or ) is applied by you
• Does your Wifi configuration (SSID + login) work in another building?
• If you have any doubt about the coverage:
     • give us the speed observed, if applicable (launch a “speedtest” from your terminal and / or a free radio coverage measurement tool such as “wifiman” for Android and Windows, linSSID under linux, “Netspot” for the Apple world and / or Windows)
     • Does your neighbor have the same symptoms in the same location ? (very often, the performance of radio antennas is different from one device to another and from one brand to another)
     • If you move to an adjoining office / bedroom, do you have the same symptoms ?


If you are a Masters or PhD Track student at IP-Paris

eduroam Wi-Fi network
username: firstname.lastname@ip-paris.fr
password: the same password as for the Moodle and Synapses applications

If you work or study at École polytechnique

eduroam Wi-Fi network
username: firstname.lastname @ polytechnique.fr
password: password used for École polytechnique directory (LDAP same as password used for your email account)

If you work or study at an eduroam institution:

eduroam Wi-Fi network
username: firstname.lastname @ yourdomain.com (e.g. ensta.fr)
password: your password (provided by your institution)

In all other cases:

Guest Wi-Fi network
This is an open Wi-Fi network (no prior authentication needed).
To create an account, you must have a valid email address, or a Facebook, Linkedin or Twitter social media account.


How do I configure my device to connect to the Wi-Fi network?


Change only the following settings:
- EAP method: TTLS
- Phase-2 authentication: PAP

- Identity: see above, according to your institution

- Anonymous identity: anonymous @ polytechnique.fr (for École polytechnique) or anonymous @ yourdomain.com (for other institutions)

- Password: enter the password you use for your institution

Windows 10

Add and configure the eduroam Wi-Fi network by following the steps shown in the screenshots below:



Type the following into the field outlined in red : nac-wifi1.polytechnique.fr;nac-wifi2.polytechnique.fr;vlaksat.polytechnique.fr

For visitors from other institutions, enter the domain of your institution instead of @polytechnique.fr.

macOS, iPhone, iPad

For service users of the campus : open the Safari browser and download the mobileconfig profile, which may be found here.

If you already have a mobileconfig for the Eduroam network you must remove it before installing the new

Then, open the downloaded file to configure your Apple device and connect to the eduroam Wi-Fi network.


For visitors from other institutions, create a profile on https://cat.eduroam.org/


If you use a graphical user interface on your device, open the network connection manager.

Then, configure the eduroam Wi-Fi network as follows:
Security: WPA and WPA2-Enterprise

Authentication: Tunneled TLS

Internal authentication: PAP

Anonymous identity: "anonymous" (for École polytechnique) or "anonymous @ yourdomain.com" (for other institutions)

If you do not use a graphical user interface, use the wpa_supplicant package in a command-line interface.

Then, create the configuration file "/etc/wpa_supplicant/eduroam.conf" and enter the following:

   identity="prenom.nom @ polytechnique.fr”
   anonymous_identity="anonymous @ polytechnique.fr"

How do I connect to the Guest Wi-Fi network?

You can connect to the Guest Wi-Fi network from any device with Wi-Fi access (no setting changes needed).

A web page will open automatically.

You then have two options:

Use your Facebook, Linkedin or Twitter social media account. (First, tick the box regarding the IT policy, then click or tap the relevant button.)

Otherwise, you can receive your login details by email, by clicking or tapping the relevant button.



The Wifi byod is a network deployed in student housing buildings, made to connect non-standard devices that can not be connected to the Eduroam network. This includes in particular personal printers, or game consoles.

This network, on the other hand, has a rather weak capacity and can not support a large number of connections. It is therefore requested to reserve its use for the intended use cases. Please do not use it to connect a computer or a phone. These can be connected to Eduroam by carefully applying the connection procedure described above. If you really can not connect to Eduroam, ask for help around you, or go to BR for help. If the byod network overloads because of these devices, it will not be maintained.

How to connect a device:

- You will need to find the mac address of your device. You usually find it in the network settings. If you can not find it, you can search on google "MAC address <device name>"

- Go to https://portail-wifi-byod.polytechnique.fr/deleg/

- Authenticate with your school LDAP credentials (ie the same as on your zimbra mailbox)

- Select the building where you want to have internet access

- Enter the MAC address of your device, and click on "next step"

Your device will now be able to connect to the "byod" network