This Post is part of SharePoint 2010 Installation Series
Fix the Host Name Problem
Method 1: Disable the loopback check
Follow these steps:1. Click Start, click Run, type regedit, and then click OK.
2. In Registry Editor, locate and then click the following registry key:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa
3. Right-click Lsa, point to New, and then click DWORD Value.
4. Type DisableLoopbackCheck, and then press ENTER.
5. Right-click DisableLoopbackCheck, and then click Modify.
6. In the Value data box, type 1, and then click OK.
7. Quit Registry Editor, and then restart your computer.
Method 2: Specify host names
To specify the host names that are mapped to the loopback address and can connect to Web sites on your computer, follow these steps:1. Click Start, click Run, type regedit, and then click OK.
2. In Registry Editor, locate and then click the following registry key:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa\MSV1_0
3. Right-click MSV1_0, point to New, and then click Multi-String Value.
4. Type BackConnectionHostNames, and then press ENTER.
5. Right-click BackConnectionHostNames, and then click Modify.
6. In the Value data box, type the host name or the host names for the sites that are on the local computer, and then click OK.
7. Quit Registry Editor, and then restart the IISAdmin service.
Open Environment Variables
Right-clicking My Computer and going to Properties then Advanced System Properties or by going to the System Control Panel and click Advanced System Properties.
From the Advanced System Properties Window go to Environmental Variables. From Environment Variables in System Variables go to Path and click Edit…
From the Exit System Variable Window, scroll to the end of Variable value:
Enter the exact text below, ensure that there are no spaces at the beginning or end of the statement.
;C:\Progra~1\Common~1\Micros~1\webser~1\14\bin
Click OK a few time to return to the desktop and reopen your Command Prompt, you should be able to use Stsadm and Psconfig without having to first navigate to SharePoint Root (formerly the 12 Hive) any longer.
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What exactly is the host name problem?
that is the issue that happens when you are creating a new site with host name …. some times the server keeps on reloading the page because it cant define the host name for some reason