Problem with Jama connection resulting in "Connection refused"

[jmauersberger]

Hi,

I have a problem in a specific environment connecting to the Jama cloud. I enabled HTTPClient logging and got something like this:

2018/07/09 09:49:07:334 EDT [DEBUG] RequestAddCookies - CookieSpec selected: default
2018/07/09 09:49:07:334 EDT [DEBUG] RequestAuthCache - Auth cache not set in the context
2018/07/09 09:49:07:334 EDT [DEBUG] PoolingHttpClientConnectionManager - Connection request: [route: {s}->https://XXXXX-sandbox.jamacloud.com:443][total kept alive: 0; route allocated: 0 of 2; total allocated: 0 of 20]
2018/07/09 09:49:07:334 EDT [DEBUG] PoolingHttpClientConnectionManager - Connection leased: [id: 1][route: {s}->https://XXXXX-sandbox.jamacloud.com:443][total kept alive: 0; route allocated: 1 of 2; total allocated: 1 of 20]
2018/07/09 09:49:07:334 EDT [DEBUG] MainClientExec - Opening connection {s}->https://XXXXX-sandbox.jamacloud.com:443
2018/07/09 09:49:07:335 EDT [DEBUG] DefaultHttpClientConnectionOperator - Connecting to XXXXX-sandbox.jamacloud.com/52.40.8.52:443
2018/07/09 09:49:07:335 EDT [DEBUG] SSLConnectionSocketFactory - Connecting socket to XXXXX-sandbox.jamacloud.com/52.40.8.52:443 with timeout 0
2018/07/09 09:49:08:360 EDT [DEBUG] DefaultManagedHttpClientConnection - http-outgoing-1: Shutdown connection
2018/07/09 09:49:08:361 EDT [DEBUG] MainClientExec - Connection discarded
2018/07/09 09:49:08:361 EDT [DEBUG] PoolingHttpClientConnectionManager - Connection released: [id: 1][route: {s}->https://XXXXX-sandbox.jamacloud.com:443][total kept alive: 0; route allocated: 0 of 2; total allocated: 0 of 20]
Jul 09, 2018 9:49:08 AM com.jamasoftware.services.restclient.httpconnection.ApacheHttpClient execute
SEVERE: Failed to execute with an exception org.apache.http.conn.HttpHostConnectException: Connect to XXXXX-sandbox.jamacloud.com:443 [XXXXX-sandbox.jamacloud.com/52.40.8.52] failed: Connection refused: connect
org.apache.http.conn.HttpHostConnectException: Connect to XXXXX-sandbox.jamacloud.com:443 [XXXXX-sandbox.jamacloud.com/52.40.8.52] failed: Connection refused: connect
at org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:158)
at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:353)
at org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:380)
at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:236)
at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:184)
at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:88)
at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:110)
at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:184)
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:82)
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:107)
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:55)
at com.jamasoftware.services.restclient.httpconnection.ApacheHttpClient.execute(ApacheHttpClient.java:129)
at com.jamasoftware.services.restclient.httpconnection.ApacheHttpClient.get(ApacheHttpClient.java:153)
at com.jamasoftware.services.restclient.jamaclient.JamaClient.ping(JamaClient.java:78)

Any idea why that could be the case? Any experience?
Not that access via browser works fine.

Thanks Jan