diff --git a/ruby.spec b/ruby.spec
index 403b325..8974228 100644
--- a/ruby.spec
+++ b/ruby.spec
@@ -1090,6 +1090,13 @@ MSPECOPTS=""
 # Avoid `hostname' dependency.
 %{!?with_hostname:MSPECOPTS="-P 'Socket.gethostname returns the host name'"}
 
+# Some infra allows DNS resolution but then does not allow
+# connection to proceed, let's ignore it altogether for now.
+# Our expectation is that there is no network connectivity outside
+# available loopback interface. That is not the reality currently.
+# https://issues.redhat.com/browse/CS-1959
+DISABLE_TESTS="$DISABLE_TESTS -n !/TestGemBundledCA/"
+
 # Give an option to increase the timeout in tests.
 # https://bugs.ruby-lang.org/issues/16921
 %{?test_timeout_scale:RUBY_TEST_TIMEOUT_SCALE="%{test_timeout_scale}"} \