Oracle 11 XE Application Express connection failure

Question

Hello,
Some how today I could not be able to connect to my database via oracle xe apex interface with Internet Explorer. My OS is Win 7 Enterprise Ed. When I use my java program I could write and read data, but some how something is wrong with apex.
I try the following urls for connecting:
Url:
http://127.0.0.1:8080/apex/f?p=4950 /
Result:
Cycle Detected
Description: Your request is prohibited because it would cause a cycle.
Url:
http://localhost:8080/apex/f?p=4950
Result:
Internet Explorer cannot display the webpage
Url:
http://myip:8080/apex/f?p=4950
//Result:
Connection refused
Description: Connection refused
how can establish the connection?

Answer 1

Thanks. Well I changed the hostname and then I got the following output, but I still can't connect to application interface. What might be wrong?
Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation.  All rights reserved.
C:\Users\uguralper.aydin>lsnrctl status
LSNRCTL for 32-bit Windows: Version 11.2.0.2.0 - Production on 18-NIS-2013 12:26
:25
Copyright (c) 1991, 2010, Oracle.  All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1)))
STATUS of the LISTENER
Alias                     LISTENER
Version                   TNSLSNR for 32-bit Windows: Version 11.2.0.2.0 - Produ
ction
Start Date                18-NIS-2013 12:22:10
Uptime                    0 days 0 hr. 4 min. 17 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Default Service           XE
Listener Parameter File   C:\oraclexe\app\oracle\product\11.2.0\server\network\a
dmin\listener.ora
Listener Log File         C:\oraclexe\app\oracle\diag\tnslsnr\nb-temp2\listener\
alert\log.xml
Listening Endpoints Summary...
  (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\EXTPROC1ipc)))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=127.0.0.1)(PORT=1521)))
Services Summary...
Service "CLRExtProc" has 1 instance(s).
  Instance "CLRExtProc", status UNKNOWN, has 1 handler(s) for this service...
Service "PLSExtProc" has 1 instance(s).
  Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
Service "XE" has 1 instance(s).
  Instance "XE", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully
C:\Users\uguralper.aydin>lsnrctl services
LSNRCTL for 32-bit Windows: Version 11.2.0.2.0 - Production on 18-NIS-2013 12:27
:59
Copyright (c) 1991, 2010, Oracle.  All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1)))
Services Summary...
Service "CLRExtProc" has 1 instance(s).
  Instance "CLRExtProc", status UNKNOWN, has 1 handler(s) for this service...
    Handler(s):
      "DEDICATED" established:0 refused:0
         LOCAL SERVER
Service "PLSExtProc" has 1 instance(s).
  Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
    Handler(s):
      "DEDICATED" established:0 refused:0
         LOCAL SERVER
Service "XE" has 1 instance(s).
  Instance "XE", status UNKNOWN, has 1 handler(s) for this service...
    Handler(s):
      "DEDICATED" established:0 refused:0
         LOCAL SERVER
The command completed successfully
C:\Users\uguralper.aydin>