Lancom Systems 3550 manual Troubleshooting, PIN Handling

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LANCOM 3550 Wireless

Chapter 9: Troubleshooting

9 Troubleshooting

In this chapter, you will find suggestions and assistance for a few common dif- ficulties.

9.1PIN Handling

Depending on the configuration, a LANCOM with UMTS/HSPDA function and an inserted data card tries to establish a connection to the Internet immedi- ately after being switched on. For this purpose, the PIN saved in the configu- ration of the device is transferred to the SIM card in the data card to enable the connection to an UMTS/HSPDA or GPRS net.

As soon as an incorrect PIN is stored in the configuration, the device transmits this invalid PIN to the SIM card. After three unsuccessful attempts, most cards are automatically locked and can only be reinstated by entering an additional number (depending on the provider PIN2 or PUK).

Whenever a device is set to automatically establish a connection to the Inter- net, three attempts with an invalid PIN may be performed within a few sec- onds without the user noticing. To prevent this, a LANCOM with the UMTS/ HSPDA function disables further attempts as soon as the device makes an attempt to establish a connection to the Internet with an invalid PIN. LANmonitor displays this condition with the error message 'The PIN is invalid':

EN

Configuration with LANconfig

To enable the connection to the Internet proceed as follows:

￿Change the PIN in the UMTS/HSPDA/GPRS Profiles.

The UMTS GPRS Profiles are located in LANconfig in the configuration area 'Interfaces' on the register card 'WAN' on the button UMTS/HSPDA/ GPRS Profiles.

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Contents Lancom 3550 Wireless Lancom Systems GmbH, Wuerselen Germany. All rights reserved Thank you for placing your trust in this Lancom product Security settingsThis documentation was compiled … Further server services DHCP, DNS, charge management Important instruction that should be followed Contents Point-to-point connections Setting up Internet accessSetting up the Umts profile Radio channel regulations for WLANs Options and accessoriesAppendix Which hardware to use? What is a Wireless LAN?Operation modes of Wireless LANs and base stations IntroductionLast mile via UMTS/HSPDA Advantages of the UMTS/HSPDA solutionInternet Mobile conference roomUMTS/HSPDA Backup Internet connection over DSL Applications What can your Lancom Router do?Wireless LAN Lancom System preconditions InstallationPackage contents Front side Status displays, interfaces an hardware installationStatus display Meanings of the LEDsGreen Red Blinking Time or connect-charge reached LED remains lit greenWireless link display can assume four different conditions Flashing Power-LED but no connection?Expert Configuration Setup Charges-module Nal wireless network card is not indicated on this displayBack of the unit Hardware installation Software installation Plexity considerably Which software should you install? Starting Lancom setupInstallation Which information is necessary? Basic configuration1 TCP/IP settings Information required for manual TCP/IP configuration New LAN-fully automatic configuration possibleConfigure manually nevertheless? Settings for the Wireless LAN Configuration protectionSelection of a radio channel Settings for the DSL connectionConnect charge protection LANconfig Start up LANconfig by clicking Start Programs LancomComplete the configuration with Finish Instructions for WEBconfigNetwork with Dhcp server Network without Dhcp serverOr with a name as discribed above Starting the wizards in WEBconfigWEBconfig main menu will be displayed Basic configuration Entering the password in the web browser TCP/IP settings to workstation PCsManual IP address assignment IP address assignment via the Lancom Router defaultIP address assignment via a separate Dhcp server Setting up Internet access LANconfig Quick access to the setup wizards Instructions for LANconfigBar, select Tools Setup Wizard Setting up Internet access Internet access Setting up the Umts profileSetting up the Umts profile Setting up the Umts profile VPN site coupling Setting up the Umts profile Choosing the mobile telephone network Other settingsActivate UMTS/GPRS profile UMTS/HSPDA only or automatic UMTS/HSPDA/GPRS selection Set up a time limit Point-to-point connections Configuration with LANconfig Configuration tool Menu/Table Connections under the following paths Access points in relay modeSecurity for point-to-point connections Encryption with 802.11i/WPAConfiguration area Wlan Security on the 802.11i/WEP tab Leps for P2P connections Found under WEBconfig or Telnet under the following pathsClosed network Security settingsSecurity for the Wireless LAN Lancom Enhanced Passphrase Security Access control via MAC addressEncryption of the data transfer  ensure that you have a secure connection 5 802.1x / EAPStandard WEP encryption IPSec over Wlan Tips for handling keysMand bar Extras Setup Wizard Security settings wizardWizard for LANconfig Firewall wizard Wizard for WEBconfigRules Security checklistConfiguration under WEBconfig Have you activated the Firewall? Have you assigned a password for the configuration?Have you permitted remote configuration? Have you assigned a password to the Snmp configuration?Have you closed critical ports with filters? Have you activated the IP masquerading?Security settings Security settings Antenna Diversity Options and accessoriesOptional Lancom Wireless Router antennas Lancom Public Spot Option Installation of AirLancer Extender antennasRadius PIN Handling TroubleshootingMenü/Tabelle Has the correct transfer protocol been selected? Problems with the cabling?You can monitor and correct the protocol settings under Increasing the TCP/IP window size under Windows DSL data transfer is slowUnwanted connections under Windows XP Appendix Performance data and specificationsWAN interface, 10/100base-TX Contact assignmentLAN interface, 10/100base-TX Declaration of conformity Radio channel regulations for WLANs Numerics LAN Link LAN Rx/Tx Power WAN Link WAN Status Wireless Link Connector cable LAN connectionNode/hub switch Optional antennas Options and accessories Relay function Remote configuration Reset15, 59 WAN connector WEBconfig PasswordWork Incorrect PIN PIN handling Time limit

3550 specifications

The Lancom Systems 3550 is a robust and versatile router designed to meet the demanding connectivity needs of modern networking environments. It is particularly well-suited for enterprises seeking to enhance their network performance, reliability, and security. This device combines advanced features with cutting-edge technologies to provide a comprehensive networking solution.

One of the standout features of the Lancom Systems 3550 is its support for various WAN technologies. It supports fiber, DSL, and LTE connections, ensuring seamless internet access regardless of the available infrastructure. This versatility allows businesses to choose the optimal connection type for their specific needs and easily adapt to changing circumstances.

In terms of voice and data capabilities, the 3550 is equipped with integrated VoIP functionality. This feature enables companies to implement Voice over IP solutions, reducing telecommunication costs while improving call quality. The router supports multiple concurrent voice channels, making it an ideal choice for businesses with significant communication requirements.

Security is paramount in today’s digital landscape, and the Lancom Systems 3550 does not disappoint. It includes advanced firewall features and supports VPN technologies, enabling secure remote access for employees and partners alike. With support for SSL and IPSec VPNs, businesses can ensure that sensitive data remains protected, regardless of whether employees are working in the office or remotely.

Another significant characteristic of the 3550 is its high-performance capabilities. It is designed to handle a high volume of data traffic without compromising performance. Equipped with advanced traffic management tools, the router can prioritize essential services, ensuring that critical applications receive the bandwidth they need, even during peak usage times.

Additionally, the device offers robust monitoring and management features. Network administrators can utilize SNMP, Syslog, and other management protocols to gain real-time insights into performance metrics and troubleshoot issues proactively. The intuitive user interface simplifies configuration and management, allowing IT staff to focus on other pressing tasks.

Scalability is also a key advantage of the Lancom Systems 3550. It provides options for expansion and can be integrated seamlessly with other devices in the Lancom ecosystem. This flexibility allows organizations to grow their networks without the need for significant overhauls.

In summary, the Lancom Systems 3550 is an ideal solution for organizations looking to enhance their networking capabilities. With its support for multiple WAN technologies, integrated security features, high performance, and robust management tools, it stands out as a reliable choice for modern enterprises. Whether for data communication or voice solutions, the 3550 ensures optimized performance, security, and scalability in one comprehensive package.
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