SQL Developer Lost all Connections - oracle-sqldeveloper

I am trying to connect to oracle database using SQL Developer. For the last 2 years I never had any issues but all of a sudden, all connections were lost. I tried to add new a one, and the connection is testing successfully. But when I clicked on the Connect button nothing happens.
I tried updating the java version to latest one, but the problem still persists.
What could be the issue? Is it related to Firewall?

Related

"MongoError: no primary found in replicaset" when trying to connect to mongodb database locally or through our galaxy server

I know this question has been asked before, but none of those solutions seem to have worked for me so far.
We've migrated our database over to and IBM cloud hosted mongoDB. I've got the connection working successfully for our .NET applications that use the Mongo.Driver library, but i can't get it work for our meteor app... Here's the connection string I have currently:
mongodb://admin:[PASSWORD]#url1.databases.appdomain.cloud:31928,url2.databases.appdomain.cloud:31928,url3.databases.appdomain.cloud:31928/dyo?authSource=admin;tls=true;tlsInsecure=true;connect=replicaSet;replicaSet=replset
I then run the connection string in this command:
SET MONGO_URL=[connection string shown above] && meteor --settings settings.json
And then we just get the error you see in the title over and over again. This happens on our galaxy server and locally. I feel like i should get this working locally first before deploying to our Galaxy server. Does anyone have any tips as to what could be happening here? I'm new to working with mongodb's and am at a loss
More info:
MongoDB version: 4.4
Meteor version: 1.4.4.1
I ended up fixing our connection issue by including ssl=true in the connection URL and removing all the parameters relating to TLS. I believe this has to do with our older version of meteor we are running, since ssl=true is actually deprecated later on...
Here's a github issue i also created if anyone has the same issue and needs more guidance in the future:
https://github.com/meteor/meteor/issues/12224

Change localhost server to external server

I am using the community version of jasperserver 8.0.0, I have to clarify that I have not made any changes or alterations in jasperserver other than working with localhost, now my next step is for other people to connect to the server, the problem is that the information on the internet about this is scarce, my question is what are the steps to achieve this and something like http://172.20.1.70:8080/...

Unable to connect to Ejabberd server

I have installed ejabberd version 17.06 on my mac. I could connect to it using Adium and Swift. But after a while after logging out of Adium and Swift I am unable to connect. The server seems to work fine as I am able to navigate the admin panel and create users. I tried uninstalling and installing back, but no use. Tried other latest version too. Nothing in the logs too.
This same behavior happened 2 days back. The clients are unable to connect after a while.
Apparently, I had to set the host as localhost, which I did not have to do before.
Hope it helps someone.

Eclipse with Worklight studio and Android hangs with "The User operation is waiting for 'Startup preview server listener' to complete"

I have been successfully developing on Eclipse Keplerwith Worklight Studio 6.1 on Windows 7 for several months now.
When suddenly I have started getting the following error message every time I try do deploy my app to the embedded worklight Server: "The User operation is waiting for 'Startup preview server listener' to complete". It hangs and never completes. See screen capture below.
I know that similar errors have been logged on StackOverflow, but I have never seen a clearcut answer for how to fix it.
Would appreciate any suggestions.
Have you tried the steps described in this stackoverflow question, it has a few steps that should address the problem.
The problem is likely to be caused by some specific configuration in your workspace so trying a new workspace should reset all settings to default, and it will also allow you to compare the different environments to identify the root cause.
Please report back to your results.

GitHub for Windows can't log in [duplicate]

This question already has answers here:
Login failed in github for window
(5 answers)
Closed 9 years ago.
When i install GitHub i can't log in using my acount credentials.
I get the error
Login Error
unable to retrieve your user info from the server. A proxy server might be interfering with the request
I tried reinstalling several times, with no success.
Also, i read somewhere that someone had a problem with rasman.dll, but i did run
sfc /scannnow
command and didn't get any reports.
Do you have any idea what might cause this problem?
UPDATE:
I re-installed the app for the third time, and updated my .NET framework, and it solved my problem (i'm guessing the .NET framework update solved it, but maybe the re-installation helped :))
I was facing the same issue, .NET framework update worked for me. No need to reinstall the GitHub Windows client. Check this thread