Lenovo 20074CU User Manual

Also see for 20074CU: Brochure

13. Why am I prompted to enter a comment when I am using an Ethernetconnection?You are prompted to type a comment because Access Connections has founda new network device for an automatic network connection. AccessConnections recognizes this network as the most suitable one for the currentlocation profile. The next time you connect to this network, this location profileis selected automatically.14. I cannot configure the fixed IP address.If you select Best Available Network for the network connection type, youcannot configure a fixed IP address. Select wired LAN or wireless LAN only.15. Why is the Ethernet location profile not displayed in the automaticlocation switching list?Ethernet location profiles with fixed IP addresses are excluded from theautomatic switching list.16. If I am using a wireless LAN connection, I cannot log on to the domain.The wireless LAN network connection is more vulnerable to an unauthorizedaccess than the wired LAN network connection, because the wirelessconnection uses radio waves. If you try to connect to the wireless LANnetwork, the authentication process is required. Until the authenticationprocess is completed, you cannot get access to the network. If it takes a longtime to get access to the network after logging on to Windows, you may not beable to log on to the domain. Instead, your computer may try to get access tocopies of the most recently requested network that have been stored in thecache of your computer. If the computer gets access to the copies locally, youcannot use some functions that are covered by logon script or logon policies.To make sure that you can log on to the domain, Access Connections startsthe authentication immediately before the process of logging on to Windows iscompleted. If you use IEEE 802.1x Authentication, such as EAP-LEAP,EAP-PEAP, or EAP-TTLS, Access Connections changes the sequence forlogging on, so that the authentication process is completed first. If you useStatic WEP Keys or Wi-Fi Protected Access—Pre Shared Key (WPA-PSK),refer to the instructions in Wireless security settings section.17. When I am using peer-to-peer mode, I cannot select channels.In peer-to-peer mode, because Access Connections searches for suitablechannels for your SSID (network name), you do not need to select channels.For the wireless standard, IEEE 802.11a/b/g, Access Connection applies thedefault setting for the wireless adapter. To change this manually, clickConfigure menu in the main window of Access Connections, and select Peerto Peer Options. If you cannot connect with other members because ofdifferences between wireless modes, leave the group and select a wirelessmode that all members can use.Appendix A. Frequently asked questions 75