Tech Articles


How to deal with the error 'No Network Connection' on logon to PowerBuilder


ISSUE: Receive error “No Network Connection” on logon to PowerBuilder

 

SYMPTOM: Error “No Network Connection” was received on every attempt to open PowerBuilder and occurs immediately on version installation. Experienced on install of  V19 - but may be experienced in other versions.  When initiating PowerBuilder process hangs for a long time and then returns a message “No Network Connection”. You exit and the application closes.

 

TEMPORARY WORKAROUND:  You can get into PowerBuilder bypassing this error by first logging into the portal of Appeon using your provided logon ID and password , then clicking on a PBW file type in your source repository. Do not go into directly into PowerBuilder first.

 

CAUSE: The issue is caused during the license verification process. The PowerBuilder application goes out to 1 of 2 URL’s (api.appeon.com and api2.appeon.com) to verify your license is up to date. Normally, these URL's would be allowed by proxy policy, if the request was made to the proxy from the software component – however our site does not use/allow “transparent proxies” – browsers and software components must be configured to make requests to the proxy explicitly. Since PowerBuilder is trying to access these api servers directly and not via our proxy the service is stopped and you receive the error “No Network Connection”.

The PowerBuilder software is not capable in V19, and other versions, to configure explicit proxy settings for the application.

 

RESOLUTON:  Create 2 Firewall rules for each PowerBuilder development PC allowing PC and its IP address direct communication (allows by pass of proxy policy) to the following Appeon license servers:

 api.appeon.com  -  192.237.225.82

api2.appeon.com -  18.218.182.153

After the rules are created logon direct to PowerBuilder occurs quickly and successfully.  

 

CONTENGENCY: Appeon servers noted above must remain static or this process will not be effective. Otherwise new Firewall rules will be required and you will need to obtain from Appeon the server names (if changed) and IP.   

 

WRITTEN BY: Robert D. Eckstine, Jr.

 

Comments (0)
There are no comments posted here yet

Find Articles by Tag

Automated Testing OAuth 2.0 UI Modernization Debugging RibbonBar Builder SnapObjects Filter XML TreeView Interface Database Table Schema Trial Data RibbonBar Script OrcaScript DataWindow JSON PDF Icon SQL Server Oracle Platform .NET DataStore Database Painter Event Handler Stored Procedure PowerScript (PS) TFS API Charts Web API SVN OAuth SOAP Mobile Windows OS Repository Service PowerServer Mobile Export JSON OLE WebBrowser SDK Installation HTTPClient Array Bug 32-bit Database Table Data Error Web Service Proxy PowerBuilder Validation Syntax Debugger DataWindow SqlExecutor Database Object Git SnapDevelop Database Connection PowerBuilder (Appeon) Messagging Migration CoderObject Azure Variable Text UI Deployment CI/CD SqlModelMapper .NET Std Framework PostgreSQL IDE COM Database Profile Menu DragDrop Configuration Elevate Conference Class Database .NET Assembly InfoMaker Linux OS External Functions PFC Graph Resize DLL Export C# Debug Event Handling JSONGenerator JSONParser SQL Database Table Encoding 64-bit TortoiseGit Source Control iOS Event MessageBox RichTextEdit Control WinAPI File PBDOM Sort PostgreSQL ODBC driver Import ActiveX Android RESTClient Branch & Merge Transaction Windows 10 Icons Encryption Window Application Expression Authorization Source Code DevOps REST Open Source PowerBuilder Compiler BLOB Jenkins PDFlib Outlook Authentication License Performance Import JSON Testing Model DataType Design NativePDF GhostScript JSON UI Themes Excel PowerServer Web ODBC CrypterObject TLS/SSL