.Net ERR_SOCKET_ERROR

[Ragunathan Dayalan]

I'm currently implementing the anti-virus scan client module using .Net SDK. I followed the SDK documentation and implemented the code same way as pasted below. The firewall has been opened between the client and server where SPE services are running. However I keep seeing the error "ERR_SOCKET_ERROR" while running the application. Any guidance is appreciated.

List<ScanEngineInfo> scanEngineInfo = new List<ScanEngineInfo>();

            scanEngineInfo.Add(new ScanEngineInfo()
            {
                scanEngineIP = config["ScanService:BaseAddress"],
                scanEnginePort = Convert.ToInt32(config["ScanService:Port"])
            });
            
            ScanRequestManager scanRequestManager = new ScanRequestManager();
            scanRequestManager.PrepareForScan(scanEngineInfo, 60000, 10000);

            StreamScanRequest streamScanRequest = scanRequestManager.CreateStreamScanRequest(Policy.SCAN, true);
            
            bool startStatus = streamScanRequest.Start(null, null);           

            byte[] buff = new byte[512];
            long bytesToRead = file.Length - 1;
            int buffCapRead = buff.Length;
            int bytesRead = 0;
            Stream fin = new MemoryStream(file);
            do
            {
                if (bytesToRead >= buffCapRead)
                {
                    buffCapRead = buff.Length;
                }
                else
                {
                    buffCapRead = (int)bytesToRead;
                }

                // Refresh data buffer.
                buff = new byte[buffCapRead];

                bytesRead = fin.Read(buff, 0, buffCapRead);
                // Send the bytes to Symantec Protection Engine
                bool sendStatus = streamScanRequest.Send(buff);               
                bytesToRead = bytesToRead - bytesRead;
            } while (bytesToRead > 0);
            if (fin != null)
            {
                fin.Close();
            }

            Stream resultStream = new MemoryStream();
            var result = streamScanRequest.Finish(resultStream);