How to connect to Wi-Fi at KubSU: instructions for students and staff

Wireless Internet in Kuban State University (KubSU) — is an integral part of the educational process and students' daily lives. However, connecting to the university network eduroam Connecting to a Wi-Fi network or local access points often raises questions, from finding the correct SSID to difficulties with portal authorization. This article will help you understand all the nuances—from basic smartphone setup to resolving common errors like "incorrect login/password" or "certificate not trusted."

It is important to understand that the network eduroam KubSU operates according to international educational roaming standards. This means that your credentials (usually username@kubsu.ru) will work not only at their home university but also at other participating universities—for example, during business trips or conferences. However, university guests (non-students/staff) will have access to separate networks with limited functionality.

In this guide we will cover:

• 🔍 How to find available Wi-Fi networks in KubSU buildings
• 📱 Step-by-step connection setup on Android, iOS, Windows And macOS
• 🔐 Portal authorization features captiva.kubsu.ru
• ⚠️ Common errors and solutions (including certificate issues)
• 🛠️ Alternative internet access options for guests

1. What Wi-Fi networks are available at KubSU?

There are some operating in the university buildings three main networks, differing in target audience and access conditions:

Net eduroam — a priority choice for regular users. It works in all KubSU buildings (including dorms) and supports roaming with other universities. To connect, you'll need:

• 📌 Login in the format surname_i.o@kubsu.ru (For example, ivanov.i.i@kubsu.ru)
• 🔑 Password for your personal account on the portal kubsu.ru
• 🛡️ Installing the root certificate (on some devices)

Important: If you have previously changed your password in your personal account, eduroam You may need to update it separately through IT support. Passwords do not sync instantly!

2. Connecting to eduroam on a smartphone (Android and iOS)

Instructions for mobile devices vary due to operating system specifics. Below are the general steps applicable to the latest versions. Android 14+ And iOS 17+.

📱 Android (Samsung, Xiaomi, Google Pixel, etc.)

1. Open Settings → Wi-Fi.
2. Select a network eduroam.
3. In the field EAP method please indicate PEAP.
4. In the field Phase 2 authentication select MSCHAPV2.
5. Enter:
   • 👤 Username: your login @kubsu.ru
   • 🔑 Password: password for your personal account
   • 🔗 CA Server: leave Not specified or select Trust all certificates (if you haven't installed the root certificate)

Click Connect.

🍎 iPhone/iPad (iOS)

1. Go to Settings → Wi-Fi.
2. Select eduroam.
3. Enter your login and password (as on Android).
4. Click Accept trust the certificate when prompted radius.kubsu.ru.
5. If the connection fails, go to Settings → General → VPN and device management → Configuration and install the profile eduroam (the link is usually available on the IT service portal).

Login entered in the format @kubsu.ru|Password is valid (verified in your account)|Wi-Fi is enabled on the device|VPN/proxy are disabled (they may block authorization)|-->

Common mistake: If after entering the data the connection "hangs" at the stage of obtaining an IP address, check whether it is blocked antivirus or firewall network connections. On Android, try temporarily disabling Adaptive Wi-Fi (in additional network settings).

3. Setting up Wi-Fi on a laptop (Windows 10/11 and macOS)

Desktop OSes require more detailed configuration due to the specifics of working with corporate networks. Below are the current instructions for Windows 11 And macOS Ventura/Sonoma.

🪟 Windows 10/11

1. Click on the Wi-Fi icon in the tray → select eduroam.
2. In the authorization window:
   • 🔄 Authentication method: Microsoft: Protected EAP (PEAP)
   • 🔐 Login method: Secure Password (EAP-MSCHAP v2)
   • ✅ Check it out Remember my credentials

Enter your login/password and click OK.

If a certificate warning appears, click Connect (even if the certificate is not trusted).

Critical detail for Windows: If the network does not connect, open Control Panel → Network and Sharing Center → Change adapter settings, find eduroam, right-click → Status → Wireless Properties → Security and specify it manually Encryption: AES.

🖥️ macOS

1. Click on the Wi-Fi icon in the menu bar → eduroam.
2. Enter your login/password and click Connect.
3. When requesting a certificate, select Trust For radius.kubsu.ru.
4. If the connection fails, open System Preferences → Network → Advanced and manually add:
   • 🔄 Security type: WPA2 Enterprise
   • 👤 Username: your login @kubsu.ru
   • 🔗 Trusted certificate: Add a trusted certificate (download from kubsu.ru/it)

What should I do if macOS keeps asking for a password?

This issue occurs due to caching of invalid credentials. Solution:

1. Open Connect to Server (⌘+K) and enter afp://radius.kubsu.ru.

2. Enter your login/password and tick Remember in keychain.

3. Delete old records about eduroam V Keychain Access (Search → "eduroam" → delete all).

4. Authorization via the portal captiva.kubsu.ru

After connecting to the network eduroam or KubSU_Guest Some devices automatically redirect to the login portal captiva.kubsu.ruIf this doesn't happen, open your browser and enter the address manually.

Authorization process:

1. Select user type:
   • 🎓 Student/Employee — to login via kubsu.ru
   • 👥 Guest — for temporary access (phone number required)

Enter your credentials and click Login.

Accept User Agreement (Necessarily!).

If you are a guest, confirm your entry via SMS (the code will be sent to the specified number).

Please note: on the portal captiva.kubsu.ru A session timer may be displayed (e.g. "Available for 4 hours"). For students/staff in eduroam There is no time limit - the timer applies only to the guest network KubSU_Guest.

5. Common mistakes and their solutions

Even with the correct settings, connecting to KubSU's Wi-Fi may still experience errors. Let's look at the most common issues and how to troubleshoot them.

❌ Error: "Incorrect username or password"

Reasons and solutions:

• 🔄 Login entered without @kubsu.ru → add domain.
• 🔑 Password is expired → update it in personal account (Security section).
• 📵 Caps Lock is on → check the capitalization of your characters.
• ⏳ Password not synced → Please wait 10–15 minutes after changing.

❌ Error: "Failed to verify server certificate"

This problem is typical for Windows And AndroidSolutions:

• 🛡️ Install the root certificate KubSU CA (download on kubsu.ru/it/cert).
• 🔄 On Android, in the network settings, select Do not check the certificate (temporary solution).
• 🖥️ On Windows, check the network properties Connect even if the network is not broadcasting its SSID.

❌ Error: "IP address not obtained" or "Connected without internet access"

Possible reasons:

• 📡 Weak signal → move closer to the access point.
• 🔧 Incorrect IP settings → set to automatic (DHCP).
• 🚫 MAC address blocking → contact your IT service (your device may be blacklisted).

netsh int ip reset
netsh winsock reset
ipconfig /flushdns

Then restart your laptop.-->

6. Alternative ways to access the Internet at KubSU

If you can't connect to Wi-Fi, the university has backup options available:

🌐 Wired internet in computer labs

In classrooms with PCs (for example, in a library or laboratories), you can use:

• 🖥️ Local computers with network access (authorization via login/password) kubsu.ru).
• 🔌 Connectors RJ-45 to connect a laptop via cable (setup IP automatically).

📶 Mobile Internet (4G/5G)

In extreme cases, you can use:

• 📱 Mobile hotspot from a smartphone (if your tariff allows it).
• 💳 USB modem from the operator (for example, MTS or Beeline with unlimited tariff).

Important: In some KubSU buildings (for example, on Stavropolskaya Street), mobile phone signal strength may be weak. Check your signal strength before using mobile internet.

Where is the most stable Wi-Fi at KubSU?

According to student reviews, the best coverage is in:

- Main building (149 Stavropolskaya St.) - especially on floors 2–4.

- Scientific library (Krasnaya St., 2) - areas for independent work.

- The building of the Faculty of Natural Sciences and Geography (13 Kalinnina St.).

In dormitories, speed may drop in the evening hours (18:00–23:00).

7. Security when using KubSU Wi-Fi

The university network is a public infrastructure, so please take precautions:

• 🔒 Use a VPN for the transmission of confidential data (for example, ProtonVPN or Windscribe).
• 🚫 Turn off public access to files and printers in the network settings.
• 🛡️ Update your OS and antivirus - This will protect against vulnerabilities in public networks.
• 📵 Avoid entering banking without VPN (risk of data interception).

Critical moment: online KubSU_Guest Traffic is not encrypted—all transmitted data (including passwords) can be intercepted. Do not use this network for sensitive accounts!

FAQ: Frequently asked questions about Wi-Fi at KubSU

🔹 Why can't I connect to eduroam, although the password is correct?

Check:

• Login entered with @kubsu.ru (For example, petrov.p.p@kubsu.ru).
• The device is set to the current time (an incorrect date blocks certificates).
• VPN/proxy are disabled (may conflict with authorization).

If the problem persists, please contact the IT service (room 105, main building) with your passport.

🔹 Can I connect a game console (PS5, Xbox) to KubSU's Wi-Fi?

Officially, no. Network eduroam requires authorization via a browser (which is not possible on consoles), and KubSU_Guest blocks devices without portal support captiva.kubsu.ru.

Workaround: Connect the set-top box to your laptop via USB Internet sharing (on Windows this is called Mobile hotspot).

🔹 How many devices can be connected to eduroam simultaneously?

There are no official restrictions, but brute-force protection may be triggered when connecting more than 3-4 devices. In this case:

• Disable unnecessary devices.
• Wait 10-15 minutes.
• If the blocking is not removed, please contact technical support.

🔹 How do I connect to Wi-Fi in the KubSU dorm?

The same network operates in the dormitories. eduroam, but with additional rules:

• 🕒 Internet access is disconnected from 01:00 to 06:00 (except for examination sessions).
• 📥 Speed ​​limit: up to 50 Mbps to the device.
• 🚫 Torrents and P2P networks are prohibited (blocked at the provider level).

To connect, use the same credentials as in the main building.

🔹 What to do if you forgot your password kubsu.ru?

You can recover your password:

1. Through university portal (button Forgot your password?).
2. At the self-service terminal (located in the main building and library).
3. In person at the IT department (please bring your student ID card).

Password reset takes up to 1 hour (synchronization with eduroam).

If your question is not covered in the article, please check the details in IT service of KubSU (phone: +7 (861) 219-95-00, ext. 1234) or via the feedback form on the portal kubsu.ru.