Status : Failure -Test failed: IO Error: The Network Adapter could not establish the connection

📢Dear Techies,

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In This video will see how to resolve the error of IO Error: The Network Adapter could not establish the connection in SQL Developers.

Run below Commands:
step 1. Run CMD as Administrator
step 2. use this commands
lsnrctl start
lsnrctl status
step 4. Start the following services
start or Refresh 'OracleServiesORCL'
start or Refresh 'OracleOraDB21Home1TNSListener'

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[shahzaibshahzaib]

App folder is not appear in my c drive

[swanzy_hairflair]

I dont have app folder on my local disk what do i do?

[BharathRaj-ydvc]

It's Success! sir😃
🙏Thank you so much for the well explaination sir!
I'm using SQL developer 20.4.1 version
my issue was with 'Port' number correction

[sayakrana]

Got solved...in cmd the username was sys as sysdba, password was admin but in sql developer it was the password i used while installing oracle 21c actually

[mariaeduardaruck]

helloo what can we do when we dont have the app folder in our c drive??

[Chanti]

Hi, thanks for your video but still I'm facing same issue, please help me on this issue 🙏.

[navitadev]

I'm not able to find oraDB21Home file inside C directory ...? will u plz help

[rupeshpadase]

Hi I tried to join what's app group but it's not connect .

[sowmiyanagaraj]

I'm not using SQL developer I'm using Oracle database.i'm open listener.ora and where to the past host, port in Oracle database pls tell me bro

[archanagujar]

Thank u so much sir...after 3 days I got it

[jws]

indan guys on youtube always solves the problem
thx a lot :)

[krishanrohilla]

Unable to find listener ora file and App folder in C drive

[ospkombo]

hi i try doing the same thing but when i try to search for OracleServiceORCL, I didn't find it in the services List how can i add it to the services list and is it related to prb during the instalation of oracle database

[dheerajvarthi]

Still Error is being thrown, what shall I do for its resolution ?