{"id":4442,"date":"2026-09-21T16:58:05","date_gmt":"2026-09-21T13:58:05","guid":{"rendered":"https:\/\/support.withsecure.com\/en\/?post_type=support_article&#038;p=4442"},"modified":"2026-09-30T14:39:28","modified_gmt":"2026-09-30T11:39:28","slug":"client-security-or-server-security-web-traffic-scanning-is-blocking-http-connections-to-an-internal-server-url-or-of-an-application","status":"publish","type":"support_article","link":"https:\/\/support.withsecure.com\/en\/support-articles\/client-security-or-server-security-web-traffic-scanning-is-blocking-http-connections-to-an-internal-server-url-or-of-an-application\/","title":{"rendered":"Client Security or Server Security Web traffic scanning is blocking HTTP connections to an internal server, URL or of an application"},"content":{"rendered":"<h3>Issue:<\/h3>\n<p>When the Client Security or Server Security Web traffic scanning (Advanced Network Protection)\u00a0 feature is enabled, some applications are slow to start, unable to connect to an internal server and some URLs are inaccessible or some applications have connectivity or performance issues<\/p>\n<p>Java-based applications are slow to start or unable to connect to an internal server or there are connectivity issues.<\/p>\n<h3>Resolution:<\/h3>\n<p>If the Web Traffic Scanning is causing issues for an application that connects to an internal server or slowness in some Java based applications, you can add the server address as trusted.<\/p>\n<p>This will exclude the network traffic from Web Traffic Scanning. \u00a0 \u00a0 \u00a0<\/p>\n<p>How to add the server address as trusted:<\/p>\n<ol>\n<li>Log in to Policy Manager Console<\/li>\n<li>Select the host or domain from the Domain Tree<\/li>\n<li>Go to the\u00a0<b>Settings\u00a0<\/b>tab\u00a0<\/li>\n<li>Go to the\u00a0<b>Web content control\u00a0<\/b>page<\/li>\n<li>Click\u00a0<b>Add\u00a0<\/b>on the right side of the\u00a0<b>Trusted sites\u00a0<\/b>list<\/li>\n<li>Enter the server address in the\u00a0<b>Address\u00a0<\/b>column<\/li>\n<li>Distribute the policy (Ctrl+D)<\/li>\n<\/ol>\n<p>No wildcard is needed in the address, for example:<\/p>\n<ul>\n<li>http:\/\/193.110.109.55<\/li>\n<li>http:\/\/sql-server-2008:8080<\/li>\n<li>SAMPLESERVER:8080<\/li>\n<\/ul>\n<p>\u00a0 \u00a0 \u00a0<br \/>If the steps above did not solve your problem, disable Botnet Blocker to see if it is the cause for the issue.<\/p>\n<p>\u00a0 \u00a0 \u00a0 \u00a0How to disable Botnet blocker:<\/p>\n<ol>\n<li>Log in to Policy Manager Console<\/li>\n<li>Select the host or domain from the Domain Tree<\/li>\n<li>Go to the\u00a0<b>Settings\u00a0<\/b>tab and select <b>Standard view<\/b><\/li>\n<li><b>Navigate <\/b>to <b>Web traffic scanning <\/b>and select <b>Botnet Blocker<\/b><\/li>\n<li>Set the <b>DNS query<\/b> filtering to <b>Allow all queries<\/b><\/li>\n<li>Distribute the policy (Ctrl+D)<\/li>\n<\/ol>\n<p>If disabling disabling the Botnet blocker did not solve the issue, disable DeepGuard temporarily and then try to reproduce the issue. How to disable DeepGuard:<\/p>\n<ol>\n<li>Open the Client Security local user interface<\/li>\n<li>Go to the\u00a0<b>Malware Protection\u00a0<\/b>tab<\/li>\n<li>Click\u00a0<b>Edit settings\u00a0<\/b>from the left side of the user interface to enable administrator rights<\/li>\n<li>Disable\u00a0<b>DeepGuard\u00a0<\/b>using the on \/ off switch<\/li>\n<\/ol>\n<p>If the issue is resolved by disabling DeepGuard, you can create a global scanning exclusion for the affected application in the policy:<\/p>\n<ol>\n<li>Log in to the Policy Manager Console<\/li>\n<li>Select a host or policy domain from the Domain Tree<\/li>\n<li>Go to the\u00a0<b>Settings\u00a0<\/b>tab<\/li>\n<li>Go to the <b>Real-time scanning\u00a0<\/b>settings page<\/li>\n<li>Scroll down to the\u00a0<b>Files and applications excluded from scanning\u00a0<\/b>table and enable\u00a0<b>Do not scan the following files and applications\u00a0<\/b><\/li>\n<li>Click\u00a0<b>Add\u00a0<\/b>on the right side of the table\u00a0<\/li>\n<li>Add the application path and click\u00a0<b>OK<\/b><\/li>\n<li>Distribute the policy (Ctrl + D)<\/li>\n<\/ol>\n<p>It is also good to make sure ORSP Service (Security Cloud)\u00a0is enabled. You may find more information about the Security Cloud <a href=\"https:\/\/www.f-secure.com\/en\/legal\/privacy\/security-cloud\" target=\"_blank\" rel=\"noopener noreferrer\">here<\/a>\u00a0 \u00a0 \u00a0 \u00a0<\/p>\n<p>How to enable ORSP via Policy Manager console:<\/p>\n<ol>\n<li>Log in to Policy Manager Console<\/li>\n<li>Select the host or domain from the Domain Tree<\/li>\n<li>Go to the <b>Settings<\/b> tab\u00a0<\/li>\n<li>Navigate to <strong>Windows &gt; Real-time scanning\u00a0<\/strong><\/li>\n<li>Enable <strong>Use Security Cloud<\/strong><\/li>\n<li>Distribute the policy (Ctrl+D)<\/li>\n<\/ol>\n<p>You can run the WithSecure Connection Checker Tool found in the Client Security or Server Security installation folder to make sure that the connectivity to all the back-end services is OK.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>When the\u00a0Web traffic scanning feature is enabled, some applications are unable to connect to an internal server and some URLs are inaccessible or some applications have\u00a0connectivity or performance issues<br \/>\nJava-based applications unable to connect to an internal server or there are connectivity issues.<\/p>\n","protected":false},"template":"","support_article_product":[106],"class_list":["post-4442","support_article","type-support_article","status-publish","hentry"],"acf":{"source_foreign_id":"000004854","source_version":3,"source_system":"salesforce","source_date_updated":"2026-09-30 11:39:28","import_hash":"2fb085cc799534e4c58bf149ab62247505859ea2","vanilla_article_id":29474,"vanilla_url":"https:\/\/community.withsecure.com\/en\/kb\/articles\/29474-client-security-or-server-security-web-traffic-scanning-is-blocking-http-connections-to-an-internal-server-url-or-of-an-application","vanilla_kb_id":30,"vanilla_category_id":103,"machine_translated":false,"reactions_helpful_yes":0,"reactions_helpful_no":0},"_links":{"self":[{"href":"https:\/\/support.withsecure.com\/en\/wp-json\/wp\/v2\/support_article\/4442","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/support.withsecure.com\/en\/wp-json\/wp\/v2\/support_article"}],"about":[{"href":"https:\/\/support.withsecure.com\/en\/wp-json\/wp\/v2\/types\/support_article"}],"wp:attachment":[{"href":"https:\/\/support.withsecure.com\/en\/wp-json\/wp\/v2\/media?parent=4442"}],"wp:term":[{"taxonomy":"support_article_product","embeddable":true,"href":"https:\/\/support.withsecure.com\/en\/wp-json\/wp\/v2\/support_article_product?post=4442"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}