Unable to test secured web services using SOAP UI

We are unable to test secured web services using SOAP UI. We are getting the below error when we download the WSDL. Please note that we are able to load non-secure WSDL,issue is with secure URL. This server supports TLSV1,TLSV1.2,TLSV1.2.When I enter secured WSDL URl in the browser address bar, it loads without any issues

Error loading […..?wsdl]: java.lang.Exception: Failed to load url; …..wsdl, 0

We tried various options like

a)Changing the protocols in vmoptions file.

b)Loading certificate in Preference Tab->SSL Settings(.cert).Please note that we have exported the certificate from IE using DER encoded binary X.509 (.CER?) file format. Personal Information Exchange is disabled.

Request your help on this.

Below is the error log

Mon Apr 25 11:58:47 CDT 2016:ERROR:java.net.SocketException: Connection reset
java.net.SocketException: Connection reset
at java.net.SocketInputStream.read(Unknown Source)
at java.net.SocketInputStream.read(Unknown Source)
at sun.security.ssl.InputRecord.readFully(Unknown Source)
at sun.security.ssl.InputRecord.read(Unknown Source)
at sun.security.ssl.SSLSocketImpl.readRecord(Unknown Source)
at sun.security.ssl.SSLSocketImpl.performInitialHandshake(Unknown Source)
at sun.security.ssl.SSLSocketImpl.writeRecord(Unknown Source)
at sun.security.ssl.AppOutputStream.write(Unknown Source)
at org.apache.http.impl.io.AbstractSessionOutputBuffer.flushBuffer(AbstractSessionOutputBuffer.java:131)
at org.apache.http.impl.io.AbstractSessionOutputBuffer.write(AbstractSessionOutputBuffer.java:151)
at org.apache.http.impl.conn.LoggingSessionOutputBuffer.write(LoggingSessionOutputBuffer.java:74)
at org.apache.http.impl.io.ContentLengthOutputStream.write(ContentLengthOutputStream.java:114)
at org.apache.http.impl.io.ContentLengthOutputStream.write(ContentLengthOutputStream.java:120)
at org.apache.http.entity.ByteArrayEntity.writeTo(ByteArrayEntity.java:68)
at org.apache.http.entity.HttpEntityWrapper.writeTo(HttpEntityWrapper.java:96)
at org.apache.http.impl.client.EntityEnclosingRequestWrapper$EntityWrapper.writeTo(EntityEnclosingRequestWrapper.java:108)
at org.apache.http.impl.entity.EntitySerializer.serialize(EntitySerializer.java:120)
at org.apache.http.impl.AbstractHttpClientConnection.sendRequestEntity(AbstractHttpClientConnection.java:263)
at org.apache.http.impl.conn.AbstractClientConnAdapter.sendRequestEntity(AbstractClientConnAdapter.java:227)
at org.apache.http.protocol.HttpRequestExecutor.doSendRequest(HttpRequestExecutor.java:255)
at com.eviware.soapui.impl.wsdl.support.http.HttpClientSupport$SoapUIHttpRequestExecutor.doSendRequest(HttpClientSupport.java:119)
at org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:123)
at org.apache.http.impl.client.DefaultRequestDirector.tryExecute(DefaultRequestDirector.java:633)
at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:454)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:820)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:754)
at com.eviware.soapui.impl.wsdl.support.http.HttpClientSupport$Helper.execute(HttpClientSupport.java:233)
at com.eviware.soapui.impl.wsdl.support.http.HttpClientSupport.execute(HttpClientSupport.java:323)
at com.eviware.soapui.impl.wsdl.submit.transports.http.HttpClientRequestTransport.submitRequest(HttpClientRequestTransport.java:290)
at com.eviware.soapui.impl.wsdl.submit.transports.http.HttpClientRequestTransport.sendRequest(HttpClientRequestTransport.java:220)
at com.eviware.soapui.impl.wsdl.WsdlSubmit.run(WsdlSubmit.java:119)
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)