Getting Connection Timeouts while trying to get metric data aginst resources through Microsoft Insights API

when we try to get Azure monitoring data against SQL databases and storage accounts and few other resources we are facing the issue with connection timeout and SSL timeouts. This issue is not specific to one type of resource. Providing sample urls which we use to get monitoring data

/subscriptions/*******/resourceGroups/******/providers/Microsoft.Compute/virtualMachines/******

/subscriptions/******/resourceGroups/******/providers/Microsoft.Sql/servers/*****/databases/*****

/subscriptions/******/resourceGroups/*****/providers/Microsoft.Web/sites/*****
Azure Insights Rest API, Failed to collect the metrics for /subscriptions/******/resourceGroups/*****/providers/Microsoft.Compute/virtualMachines/****,
org.apache.http.conn.HttpHostConnectException: Connect to management.azure.com:443 [management.azure.com/52.165.174.129] failed: Connection timed out (Connection timed out)
    at org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:156) ~[httpclient-4.5.9.jar:4.5.9]
    at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:374) ~[httpclient-4.5.9.jar:4.5.9]
    at org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:393) ~[httpclient-4.5.9.jar:4.5.9]
    at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:236) ~[httpclient-4.5.9.jar:4.5.9]
    at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:186) ~[httpclient-4.5.9.jar:4.5.9]
    at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:89) ~[httpclient-4.5.9.jar:4.5.9]
    at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:110) ~[httpclient-4.5.9.jar:4.5.9]
    at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:185) ~[httpclient-4.5.9.jar:4.5.9]
    at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:83) ~[httpclient-4.5.9.jar:4.5.9]
    at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:108) ~[httpclient-4.5.9.jar:4.5.9]
    at com.vistara.util.http.HttpUtil.processGetRequest(HttpUtil.java:102) ~[vistara-core-util-5.4.0-SNAPSHOT.jar:?]
    at 
Caused by: java.net.ConnectException: Connection timed out (Connection timed out)
    at java.net.PlainSocketImpl.socketConnect(Native Method) ~[?:?]
    a
t java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:399) ~[?:?]
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:242) ~[?:?]
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:224) ~[?:?]
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:403) ~[?:?]
    at java.net.Socket.connect(Socket.java:591) ~[?:?]
    at org.apache.http.conn.ssl.SSLConnectionSocketFactory.connectSocket(SSLConnectionSocketFactory.java:368) ~[httpclient-4.5.9.jar:4.5.9]
    at org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:142) ~[httpclient-4.5.9.jar:4.5.9]
    ... 19 more