I got the following error while trying to connect to Oracle for the first time. I had followed all the steps for starting the Oracle services, except, while
starting the Oracle services I got a status of 2. I continued with that status of 2.
This is the first time, I try conencting to Oracle. i got the following error:
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Internal Server Error


The server encountered an internal error or misconfiguration and was unable to complete your request.
Please contact the server administrator, ohs_admin@server and inform them of the time the error occurred, and anything you might have done that may have caused the error.

More information about this error may be available in the server error log.

Try restarting application side services.

./adstrtal.sh apps/spps
./adstpall.sh apps/spps
./adstrtal.sh apps/spps

I tried this, and it returned a status of 1.
adstrtal returned a status of 4 first time and the next time it gave a status of 1. After that I try connecting Oracle, but still the same error.
After installing Oracle, the post installation checks gave errors for 2 items, the Login screen and JSP{it was not responding). But when I tried the "try again" optin, this got rectified and the status became green. Does it have anything to do with this?

Giving what you have said, you installation was successful after you hit the "Try Again" button, the problem was rectified and the status became green.
This kind of problems could highly be due to the following three problems:

1) Your Internet browser being Microsoft Internet Explorer version 8, or IE 7 with some security enabled on it.
Solution: Install another web browser as Fire Fox, and always use this browser when you want to connect to Oracle Apps.

2) Sometime, the IP Address you Oracle Enterprise Linux which you synchronize with the Host File IP Address, would have changed due to various reasons, such as your system being in the presence of another Oracle Apps installation, or your Oracle Apps system being just exposed to other wireless network environments.
Solution: Check again the IP Address of the Guest operating system: [Oracle@linux ~]$ /sbin/ifconfig . Note the IP Address down. START > Accessories > Notepad.

Now, right Click Notepad, and Choose “Run as administrator”. (You cannot modify the host file of Windows without this privilege). This will open a blank Notepad file. Click on File menu, and select Open from the drop down menu. Look for the file “hosts” in the directory “C:\Windows\System32\Drivers\etc”. The file “hosts” will be open is a Notepad to be appended. Example: 192.168.0.12 linux.server . Save your note file. Restart you’re your browser.
In the Internet Explorer address bar, type the following: “http://linux.server:8000”

3) Another cause of the problem I have seen is: Not successfully installing the one-off Java Virtual machine (JVM) after click on Security > User > Define with System Administrator responsibility.
Solution: Make sure you initiate the process of installing JVM, and then follow “blindly” the part of the tutorials dealing with this.

You should be fine after the above three investigations!

Can someone help me on this.
I have problem in connecting first time to the application from windows Ie. I followed step by step in lesson when it try to run javascript launch form Im getting message like this "FRM-92050:Failed to connect to the server /forms/servlet-1
What should I do now?
I have attached the message.

I resolved this problem by diabling XSS filter in Explorer 8 now I can connect to the application.

Even after disbling XSS filter, Oracle was not getting connected.
But I tried Mozilla Firefox and it got connected. So, I'm all set now.
Thanks for your suggestions.

when I try to connect it is giving an error "500 Internal Server Error" I cannot to the application. can some one help me?

Try starting applications services twice.

./adstrtal.sh apps/apps
./adstpall.sh apps/apps
./adstrtal.sh apps/apps

When I had similar issue, I started Oracle Application services again and used Mozilla Firefox instead of IE. I got connected using Mozilla. But even now, when I try connecting, it gives the error and only after a couple of retrying it gets connected.
So, you can also try using a different browser and may be retry connecting, even if you get the error

Deep, it looks like your are tight on resources. That is why it is taking couple of tries before you could connect. Services are taking time to wake up.