锐捷认证客户端常见问题解答（Rujie client FAQ）Fault phenomenon 1: client prompt "can not find the appropriate network card.""Reason: the system does not properly access the network card information, or the network card has a problemSolution: exit and reopen the client. If the problem persists, please uninstall the network driver, reinstall it, and change a network card if it still doesn't work out.Fault phenomenon 2: client prompt: "the system working environment and software running environment conflict, the software can not run normally, CODE = 2.""Reason: the installation of multiple network cards and server requirements are inconsistentThe solution: uninstall or disable the extra network card and leave only one network card running (if it is the Win98 system, disable the Dial-Up Adapter).The other: sometimes installed cameras also have this message, as long as the installation of the camera program after the perturbation without pulling out the camera to restart the computer system can be installed; and when the virtual machine will prompt code=2, it is because the virtual machine will be out of a virtual network card, and the nature of multi card system is the same. Therefore, we do not recommend using the virtual machine installed on the internet!Disable redundant network card drivers: my computer - properties - hardware - Device Manager - View - shows hidden devices - network adapters - disabled.Fault phenomenon 3: client prompt: "the system working environment and software running environment conflict, the software can not run normally, CODE = 4.""Reason: the proxy server was installed and the server requested is inconsistentSolution: turn off or uninstall the proxy server and all the software that could become proxy servers (such as your own SMTP mail server, FTP file, download server, etc.).Malfunction 4: authentication failed, without any error tipsReason: WINXP users enabled the system to own 802.1X authenticationSolution: double click the network connection icon and remove the tag before the "802.1X authentication" in the authentication tag inside the property.Fault 5: authentication failed, prompting the maximum number of connections to be reached"Two situations lead to the above:Reason: student account number is stolen! Solution: Please bring your student ID card to the information center in time.Fault phenomenon 6: cannot authenticate, prompt the network card not to connect"Reason: cable connection is not correct, the quality of the network is poor, the quality of the small switch installed by himself is poor, and the switchboard is out of powerSolution: check whether the network is normal, to confirm whether the exchange cabinet power failure. If the students around are such a situation, please promptly student management network group (22328778)Malfunction 7: cannot authenticate, the authentication client has been stuck in: "looking for authentication server" and finally "authentication failed""Reasons: bad quality of the network, or network card problems, or did not choose to use private multicast address authentication"Solution: check whether the network is normal, in the authentication client set "use private multicast address authentication", reinstall the network card driver, and if the problem persists, replace a network card.At this time such as data packets without receiving packet (0) can try to card rate to 10M full duplex mode (Methods: network connection - local connection - properties - configuration - - link mode - speed/duplex high value - 10 full mode)Malfunction 8: cannot authenticate, the authentication client stops at: connection authentication server...Reason: the service access switch to the network management center server communication is not normal, may be a switch or network management center power failureSolution: notify the network management team of this phenomenon and be patient.Malfunction 9: "the current system conflicts with the work environment. DHCP gets the failure, code=6."Symptoms: the original network can be normal dynamic access to IP address, authentication, access to the Internet, suddenly code=6 can not get IP address, Certified Internet accessSolution: Check: start - run - CMD - ipconfig input /renew input as a hint: "= = = = The following error occurred when renewing adapter in a non local connection: socket to try a" prompt according to the operation to recover the problem, if not this hint to reinstall the NIC with the client software to try, you can set the relevant information such as the appropriate changes to the registry.Reason: this problem may occur if the WinSocks library or TCP/IP stack is corrupted.Solution：To solve this problem, follow these steps:Warning: Registry Editor improperly used can cause serious problems. You may need to reinstall your operating system.Microsoft does not guarantee that you can solve problems caused by improper use of the registry editor. Using the Registry Editor takes you at your own risk.1. click start, and then click run.2. in the open box, type regedit, and then press the Enter key.3. browse to the following registry key:HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Winsoc k4. on the registry menu, click export registry file.5. in the file name box, type the name of the backup file; for example, type Winsock Registry key, and then click save. Make a note of the name of the folder where the registry file is saved.6. repeat steps 3 through 5 of the following registration entries:HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Winsoc k27. remove the following items from the registry:HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Winsoc kHKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Winsoc k2Note: the two registry keys are backed up from steps 3 through 6. In case of unexpected behavior on the computer, you can use the backup file to restore these registry keys. For more information about how to restore registry keys from the.Reg file, search for the import or export registry keys topic in the registry editor help file.8. close the registry editor.9. uninstall the TCP/IP protocol. To do this, follow these steps:A. in the control panel,Click the network and dial up connections, right-click the LAN connection, and then click Properties on the shortcut menu.B. in this connection using the selected components, click Internet protocol (TCP/IP), and then click uninstall.C. uninstall TCP/IP as shown on the screen.10. restart the computer and reinstall the TCP/IP (if it is not automatically installed):A. in the control panel, double-click the network and dial up connections, right-click the LAN connection, and then click Properties on the shortcut menu.B. click install.C. in the select network component type dialog box, click agreement, and then click add.D. under the vendor, click Microsoft, click the Internet protocol under the network protocol (TCP/IP), and then click ok.E. install the TCP/IP as shown on the screen.11. test the Internet connection to see if it is normal.Solution two: start - run - enter Netsh Winsock reset, reboot the system, or direct super rabbit IE fix - force fix Winsock2 try.Solution three: try to shut down the firewall and antivirus software, then verify.Solution four: if the above operations can not solve the problem, or afraid of trouble, it is recommended to reinstall the system (if no special instructions, the default is for the XP system)Fault phenomenon 10: client running, that is, the disappearance of the fault?Answer: cause of the failure: if the user's computer has set up multiple DNS or multiple IP addresses and the system has system32.exe, this process may be Trojan horse into the program,It may cause other faults if it is disguised as another name.The troubleshooting is as follows: see the process with the CTRL+DEL+ALT key.Another: the certification of the Internet, as long as the "hook" "save password" item, the other four please do not tick, or sometimes there will be "initialization card failed" tips!Fault phenomenon 11.. Client prompt authentication failed, indicating "IP type error" fault?Answer: cause of failure: authentication server did not receive IP address information.Fault solution: students dormitory online IP address is automatically access to IP access to the Internet, so if the binding IP address is not certified Internet access.At this point, you can connect to the network - the local connection - Property - internet protocol (TCP/IP) - automatically gets the IP address and automatically gets the DNS server address faultFault phenomenon 12.. Client can authenticate successfully,but is unable to access the Internet fault?Answer: the reason for the failure: automatic access to the IP address error.Troubleshooting: check out what IP address you've gotFault phenomenon 13., the client can authenticate successfully, you can go to QQ, but you can't open the fault of the web pageAnswer: generally a personal system problem.Fault solution:First, infected with the virus causedThis often occurs when you open IE, and in the lower left of the IE screen, prompt: "the page is being opened, but the old half."The sky is not responding. In the task manager, look at the process. (enter the method, put the mouse on the taskbar, right - taskManager - process) look at the occupancy rate of CPU, and if it's 100%, be sure you're infected with the virus,At this point, you want to run other programs, just suffering. It's important to find out which process greedily takes up CPU resources.After finding the best record the name, and then click on the end, if not complete, should start to securityType, delete this, and enter the registry. (method: start - run, enter regedit) in the registryDialog box, point edit - find, enter that program name, find, click the right mouse button to delete, and then several timesThe search often can be completely deleted clean.With a lot of viruses, the only way to do this is to remove them manually.Two, installed isolation firewallIf you install the firewall isolation, such as Mcafee virus firewall, or Skynet, Kingsoft, Rising Firewall, canTry to switch off first to see if the firewall software has been isolated from the IE. Or check your Start > program inNo network assistant, Baidu super search, such as garbage cleaning, shielding lists and other functions, if availableFirst off, or unloaded, these are normally installed automatically when you are not aware of them,Three, and set up proxy serverCheck that the proxy server (control panel - Internet option)is connected to the IE browserDomain network settings - using proxy servers for LAN - setting proxy servers does not affect QQ networking, because QQ uses4000 ports, while access to the Internet uses 80 or 8080 ports. Proxy servers are generally not very stable, sometimesHou shang,Sometimes I can't get on. If you have this setting, please cancel the agent to see if it has any effectFour, DNS server parsing errorThe so-called DNS, that is, domain name server (Domain Name Server), it translates the domain name into the computer can identify IPAddress, if the DNS server error, it can not be domain name resolution, and naturally can not access the internet.But normally, if you set up two of our school's DNS on your computer, just DNS is no problem, now promptedPlease set the following DNS in your computer, namely: 202.103.96.112 and 202.103.96.68Five, reinstall the driver or replace the network adapter to try.Six, the system file missing, resulting in IE can not start properlyThis phenomenon is quite common, because:1, the system instability is characterized by frequent crashes, often inexplicable restart, illegal shutdown, resulting in loss of system files;2, the hardware and software conflicts often show the installation of certain programs that cause network card driver conflicts or conflicts with IE. SinceAfter the introduction of hyper threading INTEL by CPU, one of the outstanding problems is that the IE6 under XP SP1 conflicts with hyper threading;3, viruses cause damage or loss of system files.If it is the first case, you can try to repair the system, or 2000 or XP system, into the original installation CD (Note: 1)Make sure you install the disc first. Enter SFC /scanow in the start run and press enter. 98 of the system can also use SFC lifeOrder for inspection.In second cases, you can uninstall the most recently installed hardware or programs, and 2000 or XP systems are availableAfter the device starts, press F8 to enter the boot menu, select the last correct configuration, and if the XP system is availableIn order to take advantage of the restore function of the system, the problem can be solved quickly.If it's XP's system, you can disable hyper threading in BIOS or upgrade to SP2 because of hyper threading CPU. thisUnder the circumstances, QQ comes with TT browser in general can be normal browsing, you can use a try.If it is the third case, the system disk should be comprehensive killing virus.Seven, IE browser damageIf the above method does not work, there may be damage to the IE kernel, although the system repair, also unable to make up for itWhat's the best way to reinstall IE?.If it is 98 or 2000 systems, if the version of IE is 5, it is recommended to upgrade to 6.98 of the system has been upgraded, installed 6, then click on the add / Remove program in the control panel will be playedMake a repair dialog box, select the default fix, restart it.If it is 2000+IE6.0 or XP (comes with IE is 6) of the system, reinstall IE is a bit troublesome, there are two kindsMethod：1, open the registry, expandHKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Active Setup\InStalled, Components\{,89820200-ECBD-11cf-8B85-00AA005B4383,}, IsInstalledThe value of DWORD is changed to 0;2. Put in the XP installation CD and enter "rundll32.exe setupapi", "InstallHinf" in the start run132%节defaultinstall windir % \ inf文件ie.inf”注：重装IE并不一定就能解决问题，仅是一个处理问题的思路而已。
