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Connection and Network Issues
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There were 14 articles found in this category:
 What does the error message "Unable to write to C:\Program Files\ABControl\ABControl.tmp, it is read only or opened by someone else" mean?
The file 'ABControl.tmp' gets created when the AB Tutor program is saving changes to settings, groups, policies etc. It first creates a file called 'ABControl.tmp' and saves data to it, backs up the existing 'ABControl.xml' (or ABControl.dat in Version 5) by renaming it 'ABControl.bak' and t ...
- Sometimes ABTC seems to allocate names to machines at random.
This is usually down to your DHCP and DNS server (or WINS if you use NetBios) not releasing/refreshing correctly. The Microsoft DNS services are meant to map the computer's name to its dynamically assigned IP address from the DHCP server. If your DNS server caches the IP addresses assigned to co ...
- Some of my client connections fail with error 10060 when they are in a classroom group, however if I use ' find ALL' they connect OK
This is down to your DHCP and DNS server (or WINS if you use NetBios) not releasing/refreshing correctly. The Microsoft DNS services are meant to map the computer's name to its dynamically assigned IP address from the DHCP server. If your DNS server caches the IP addresses assigned to computer ...
- Power On not working since May 2011 Microsoft Updates
Since the Microsoft updates in May 2011, there appears to have been a change which is preventing Dell Optiplex machines from using the PowerOn option within AB Tutor. Here is the location within BIOS on a Dell Optiplex 380 that allows the remote power on via AB Tutor: 1. Press F2 during boot up ...
- I never set any connection passwords at all, so how is it possible that there should be password problems
If you have not set any connection passwords, anyone who has managed to get access to a copy of AB Tutor, may have connected to all your unprotected clients and changed the connection password themselves, thus preventing you from connecting to your own machines. For this reason you really mus ...
- I have just upgraded AB Tutor and now get 10060 or 10061 error messages.
Most firewalls and anti-virus software detect when software programs have been changed (upgraded or corrupted) and, by default, block the new program. You need to make sure that the upgraded program has not been blocked. Refer to your firewall and anti-virus software user documentation on how ...
- I get the error message no. 11004
This error can occur when you are trying to connect to a remote machine using the machine's name or a domain name and your network or DNS server is unable to resolve the name correctly. For example, the DNS server may return a valid MX record, but there may not be a valid A record indicating t ...
- I get an Error Message "System Error 10055"
The system error 10055: "An operation on a socket could not be performed because the system lacked sufficient buffer space or because a queue was full" occurs when an operation on a socket or pipe was not performed because the system lacked sufficient buffer space or because a queue was full. ...
- I get a warning message 'Unable to resolve host by name. No such host is known (11001)'
The 11001 error message is 'Host not found'. This means that AB Tutor is trying to find the actual IP address of the remote machine from the computers name. This may happen if you are launching AB tutor and selecting a 'Classroom Group'. When you do this, the names you entered for the Compute ...
- I can see but cannot connect to my clients and get the "10060" error message.
The 10060 error, "Unable to connect to host: The Attempt to connect timed out without establishing a connection" is almost always caused by firewall or antivirus software blocking the communication between the AB Tutor program and the clients. Check that your Firewall and anti-virus software ...
- I am having trouble connecting with another computer over the Internet using IP addresses.
In order to connect to a remote machine over the Internet, the IP address of that machine MUST be a public-facing static IP address. (i.e. one that can been see by anyone on the Internet and not dynamically generated by a DHCP server within a private network). You must also make sure that you ...
- How to connect with another computer over the Internet using IP Addresses
In order to connect to a remote machine over the Internet, the IP address of that machine MUST be a public-facing static IP address. (i.e. one that can been see by anyone on the Internet and not dynamically generated by a DHCP server within a private network). You must also make sure that you ar ...
- How can I manually configure my Windows XP firewall to allow AB Tutor to work?
Microsoft Windows XP ships with a built-in firewall that protects your computer against unauthorised programs accessing the network or Internet. AB Tutor is a program that uses your network to connect to other computers and so will be blocked by the firewall. To fix this, we need to alter the ...
- How can I configure AB Tutor to run through our proxy server?
If any computer on which AB Tutor is installed accesses the Internet via a proxy server, then details of the proxy server must be entered into AB Tutors settings. - Launch AB Tutor (you will see a warning message as the program fails to connect to the Internet) - Select the 'Tools' menu. - Click ...
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