If you have more the one computers running Windows, then its possible to connect them using HomeGroup.HomeGroup provides an easy pathway to share files and printers on a home network. The conventional way of copying the file first to USB drive and then pasting it on target machine, can thus be suppressed. However, sometimes you may come around a situation, that leads to connection failure while connecting in your home network. In that case, you’ll receive following message:
<domainname> is not accessible. You might not have permission to use this network resource. Contact the administrator of this server to find out if you have access permissions.
The account is not authorized to log in from this station.
The first and foremost step you might want to take after receiving this error is that you should try to turn on, and then turn off Windows Firewall and see if that helps. If that doesn’t helps, you can try the suggestion mentioned in thiscommunity thread, which is as follows:
The account is not authorized to log in from this station
Making mistakes while manipulating registry could affect your system adversely. So be careful while editing registry entries and create a System Restore point before proceeding.
1. Press Windows Key + R combination, type put regedit in Run dialog box and hit Enter to open the Registry Editor.
2. In the left pane of Registry Editor, navigate here:
HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicesLanmanWorkstationParameters
3. In the right pane of above mentioned registry location, right click and select New -> DWORD. Name the newly created DWORD as AllowInsecureGuestAuth and double click the same DWORD to modify its Value data:
4. In the above shown box, put the Value data as 1 and click OK. Close the Registry Editor and reboot the machine, the problem must be fixed after restarting the machine.
If your laptop have trouble to access 10.48.203.15, you can try to refer the following link to change the registry.
http://www.thewindowsclub.com/account-is-not-authorized-to-log-in-from-this-statiom
If the value of “RequireSecuritySignature” equal 1, please change to 0