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Last modified by Denisa Wernerová on 10.09.2024 14:03
From version 4.2
edited by Denisa Wernerová
on 23.08.2024 13:38
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To version 2.1
edited by Denisa Wernerová
on 29.08.2017 12:40
Change comment: Copied from xwiki:faq.vpn

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1 -Problems connecting via VPN
1 + Problems connecting via VPN
Content
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1 1  If VPN concentrator after connection does not require login and password, please check your connection to VPN concentrator by using command:
2 2  
3 3  * From internet: **ping vpn.vsb.cz**
4 -\\(Enter ping command similary like [[here>>doc:tuonet.sit-nastaveni.ping.WebHome]].)
5 -If server do not respond there is very likely problem with your network connection. (% style="color:#cc0000" %)Ask your provider for help(%%).
4 +
5 +(Enter ping command similary like [[here>>doc:tuonet.ping]].)
6 +If server do not respond there is very likely problem with your network connection. (% style="color: rgb(204, 0, 0);" %)Ask your provider for help(%%).
7 +
6 6  
7 7  VPN concentrators have no capacity limits.
10 +
8 8  
9 -If login and password is requied again and again, you are probably entering bad login or password. You may check if your password is not blocked [[here>>url:https://innet.vsb.cz/cs/uzivatelsky-ucet/potrebuji-poradit/problemy-s-prihlasenim/]].
12 +If login and password is requied again and again, you are probably entering bad login or password. You may check if your password is not blocked [[here>>url:http://innet.vsb.cz/cs/osobni-agenda/pomoc/problemy-s-prihlasenim/]].
13 +
10 10  
11 11  Also check if your access was not blocked due sharing (check your academic email).
16 +
12 12  
13 13  Often there are problems with firewall settings or antivirus malfunction. Try deactivate them temporarily and connect again.
19 +
14 14  
15 -If you are connected to internet via SOHO router, problem might be there. Try to update firmware to the lastest version. We also register this problem at some TP-Link routers.
21 +If you are connected to internet via SOHO router, problem might be there. Try to update firmware to the lastest version. We also register this problem at some TP-Link routers.
22 +
16 16  
17 -If you have a problem connecting through the Cisco Secure Client, make sure that you do not have activated a proxy server (Various anonymization services, etc.).
24 +If you have a problem connecting through the AnyConnect client, make sure that you do not have activated a proxy server (Various anonymization services, etc.).
25 +
18 18  
19 -When you are installing the Cisco Secure Client and you will get the error message "**Web-based installation was unsuccessful**", perform the installation manually by clicking "**Install using the link below**".
27 +When you are installing the AnyConnect client and you will get the error message "**Web-based installation was unsuccessful**", perform the installation manually by clicking "**Install using the link below**".
28 +
20 20  
21 -When installing the Cisco Secure Client, an error occurs "** The VPN client agent was unable to create the interprocess communication depot **", it is necessary to disable the service in the Windows Internet Connection Sharing / Internet Connection Sharing.
30 +When installing the AnyConnect client, an error occurs "** The VPN client agent was unable to create the interprocess communication depot **", it is necessary to disable the service in the Windows Internet Connection Sharing / Internet Connection Sharing (for example [[http:~~/~~/durga-mcse.blogspot.cz/2013/04/solution-vpn-client-agent-was-unable-to.html>>url:http://durga-mcse.blogspot.cz/2013/04/solution-vpn-client-agent-was-unable-to.html]])
31 +
22 22  
23 -If you use Chrome / Chromium may appear instead of the page content vpn.vsb.cz following error: ** Error 324 (net :: ERR_EMPTY_RESPONSE): Unknown error **. The solution is to run the program with the following argument: ** - -disable-ssl-false-start **. Argument can add the shortcut properties (icon Chrome / Chromium) in the Target box: .. ** chrome.exe-- --disable-ssl-false-start **.
33 +If you use Chrome / Chromium may appear instead of the page content vpn.vsb.cz following error: ** Error 324 (net :: ERR_EMPTY_RESPONSE): Unknown error **. The solution is to run the program with the following argument: ** - -disable-ssl-false-start **. Argument can add the shortcut properties (icon Chrome / Chromium) in the Target box: .. ** chrome.exe-- --disable-ssl-false-start **. More technical information can be found, for example,
34 +[[here>>url:https://tools.ietf.org/html/draft-bmoeller-tls-falsestart-00#page-3]].
35 +
36 +
37 +__**Only for Cisco VPN client:**__
38 +
39 +When logging will be correctly, but have problems when transferring data, set with utility setmtu ** ** MTU 1300 B. Program in the directory with a VPN client "Program Files / Cisco Systems / VPN Client".
40 +
41 +
42 +if your Internet service provider uses address translation, you must have setup a VPN client checked item ** ** Enable Transparent Tunneling. Check this tab ** ** Transport. You can use IPSec over UDP (preferred) and IPSec over TCP.
43 +
44 +
45 +When using the Cisco VPN client is needed to the Windows (% style="color: rgb (204, 0, 0);" %) was not (%%) installed ** Transport Protocol compatible with NWLink IPX / SPX **. Uninstall it in the Control Panel ** ** Network Connections.\\
46 +
47 +Occurs when you install the client on Windows Vista or Windows 7 ** error Internal Error 2738 or 1720 **, follow these steps. Use this procedure even in the case when installed on Windows 7 64 bit error occurs ** Installation ended prematurely Because of an error **.
48 +__Only for Windows 7: __
49 +
50 +1. First you need to delete a registry key (there may be even twice):
51 +##HKEY_CURRENT_USER\SOFTWARE\Classes\CLSID\{B54F3741-5B07-11CF-A4B0-00AA004A55E8}##
52 +On Windows 7 64bit it is the key:
53 +##HKEY_CURRENT_USER\Software\Classes\Wow6432Node\CLSID\{B54F3741-5B07-11CF-A4B0-00AA004A55E8}##
54 +More information http://blogs.msdn.com/astebner/archive/2007/06/07/3151752.aspx
55 +
56 +__For Windows 7 and Vista:__
57 +
58 +1. Make sure that you are not running the installer Cisco VPN client.
59 +1. Click on Start → All Programs → Accessories
60 +1. Right-click on Command Prompt. Select Run As ... menu, then select Run As Administrator.
61 +1. In the command prompt write cd C:\Windows\System32 and press enter.
62 +1. Then enter regsvr32 C: \ Windows \ System32 \ vbscript.dll ** and press Enter.**
63 +1. You'll see a message that says "DllRegisterServer in C: \ Windows \ System32 \ vbscript.dll succeeded." Then click OK.
64 +1. Close the Command Prompt and restart the computer.
65 +1. By now, the installation was done correctly.