diff --git a/lib/unleash/client.rb b/lib/unleash/client.rb
index 2e1642ee..9538a86c 100644
--- a/lib/unleash/client.rb
+++ b/lib/unleash/client.rb
@@ -116,6 +116,7 @@ def info
       {
         'appName': Unleash.configuration.app_name,
         'instanceId': Unleash.configuration.instance_id,
+        'connectionId': Unleash.configuration.connection_id,
         'sdkVersion': "unleash-client-ruby:" + Unleash::VERSION,
         'strategies': Unleash.strategies.known_strategies,
         'started': Time.now.iso8601(Unleash::TIME_RESOLUTION),
diff --git a/lib/unleash/configuration.rb b/lib/unleash/configuration.rb
index 8247df69..7a32ad7f 100644
--- a/lib/unleash/configuration.rb
+++ b/lib/unleash/configuration.rb
@@ -23,6 +23,7 @@ class Configuration
       :bootstrap_config,
       :strategies,
       :use_delta_api
+    attr_reader :connection_id
 
     def initialize(opts = {})
       validate_custom_http_headers!(opts[:custom_http_headers]) if opts.has_key?(:custom_http_headers)
@@ -102,7 +103,7 @@ def set_defaults
       self.project_name     = nil
       self.disable_client   = false
       self.disable_metrics  = false
-      self.refresh_interval = 10
+      self.refresh_interval = 15
       self.metrics_interval = 60
       self.timeout          = 30
       self.retry_limit      = Float::INFINITY
diff --git a/lib/unleash/metrics_reporter.rb b/lib/unleash/metrics_reporter.rb
index 021876ea..58e283ca 100755
--- a/lib/unleash/metrics_reporter.rb
+++ b/lib/unleash/metrics_reporter.rb
@@ -23,6 +23,7 @@ def generate_report
         'specVersion': Unleash::CLIENT_SPECIFICATION_VERSION,
         'appName': Unleash.configuration.app_name,
         'instanceId': Unleash.configuration.instance_id,
+        'connectionId': Unleash.configuration.connection_id,
         'bucket': metrics || {}
       }
     end
@@ -37,7 +38,9 @@ def post
         return
       end
 
-      response = Unleash::Util::Http.post(Unleash.configuration.client_metrics_uri, report.to_json)
+      headers = (Unleash.configuration.http_headers || {}).dup
+      headers.merge!({ 'UNLEASH-INTERVAL' => Unleash.configuration.metrics_interval.to_s })
+      response = Unleash::Util::Http.post(Unleash.configuration.client_metrics_uri, report.to_json, headers)
 
       if ['200', '202'].include? response.code
         Unleash.logger.debug "Report sent to unleash server successfully. Server responded with http code #{response.code}"
diff --git a/lib/unleash/toggle_fetcher.rb b/lib/unleash/toggle_fetcher.rb
index 3001ba2c..1c881dfd 100755
--- a/lib/unleash/toggle_fetcher.rb
+++ b/lib/unleash/toggle_fetcher.rb
@@ -37,7 +37,9 @@ def fetch
       Unleash.logger.debug "fetch()"
       return if Unleash.configuration.disable_client
 
-      response = Unleash::Util::Http.get(Unleash.configuration.fetch_toggles_uri, etag)
+      headers = (Unleash.configuration.http_headers || {}).dup
+      headers.merge!({ 'UNLEASH-INTERVAL' => Unleash.configuration.refresh_interval.to_s })
+      response = Unleash::Util::Http.get(Unleash.configuration.fetch_toggles_uri, etag, headers)
 
       if response.code == '304'
         Unleash.logger.debug "No changes according to the unleash server, nothing to do."
diff --git a/lib/unleash/util/http.rb b/lib/unleash/util/http.rb
index 287d8f02..c8b66808 100644
--- a/lib/unleash/util/http.rb
+++ b/lib/unleash/util/http.rb
@@ -12,10 +12,10 @@ def self.get(uri, etag = nil, headers_override = nil)
         http.request(request)
       end
 
-      def self.post(uri, body)
+      def self.post(uri, body, headers_override = nil)
         http = http_connection(uri)
 
-        request = Net::HTTP::Post.new(uri.request_uri, http_headers)
+        request = Net::HTTP::Post.new(uri.request_uri, http_headers(nil, headers_override))
         request.body = body
 
         http.request(request)
diff --git a/spec/unleash/client_spec.rb b/spec/unleash/client_spec.rb
index 20ef073c..93292a1a 100644
--- a/spec/unleash/client_spec.rb
+++ b/spec/unleash/client_spec.rb
@@ -29,7 +29,8 @@
           'Accept-Encoding' => 'gzip;q=1.0,deflate;q=0.6,identity;q=0.3',
           'Content-Type' => 'application/json',
           'User-Agent' => "UnleashClientRuby/#{Unleash::VERSION} #{RUBY_ENGINE}/#{RUBY_VERSION} [#{RUBY_PLATFORM}]",
-          'Unleash-Sdk' => "unleash-client-ruby:#{Unleash::VERSION}"
+          'Unleash-Sdk' => "unleash-client-ruby:#{Unleash::VERSION}",
+          'Unleash-Interval' => '60'
         }
       )
       .to_return(status: 200, body: "", headers: {})
@@ -56,7 +57,8 @@
           'Unleash-Connection-Id' => fixed_uuid,
           'User-Agent' => "UnleashClientRuby/#{Unleash::VERSION} #{RUBY_ENGINE}/#{RUBY_VERSION} [#{RUBY_PLATFORM}]",
           'Unleash-Sdk' => "unleash-client-ruby:#{Unleash::VERSION}",
-          'X-Api-Key' => '123'
+          'X-Api-Key' => '123',
+          'Unleash-Interval' => '15'
         }
       )
       .to_return(status: 200, body: simple_features.to_json, headers: {})
@@ -92,6 +94,7 @@
       .with(headers: { 'UNLEASH-APPNAME': 'my-test-app' })
       .with(headers: { 'UNLEASH-INSTANCEID': 'rspec/test' })
       .with(headers: { 'UNLEASH-CONNECTION-ID': fixed_uuid })
+      .with(headers: { 'UNLEASH-INTERVAL': '15' })
     ).to have_been_made.once
 
     # Test now sending of metrics
@@ -104,6 +107,7 @@
         .with(headers: { 'UNLEASH-APPNAME': 'my-test-app' })
         .with(headers: { 'UNLEASH-INSTANCEID': 'rspec/test' })
         .with(headers: { 'UNLEASH-CONNECTION-ID': fixed_uuid })
+        .with(headers: { 'UNLEASH-INTERVAL': '60' })
     ).not_to have_been_made
 
     # Sending metrics, if they have been evaluated:
@@ -117,6 +121,7 @@
       .with(headers: { 'UNLEASH-APPNAME': 'my-test-app' })
       .with(headers: { 'UNLEASH-INSTANCEID': 'rspec/test' })
       .with(headers: { 'UNLEASH-CONNECTION-ID': fixed_uuid })
+      .with(headers: { 'UNLEASH-INTERVAL': '60' })
       .with{ |request| JSON.parse(request.body)['bucket']['toggles']['Feature.A']['yes'] == 2 }
     ).to have_been_made.once
   end
@@ -174,7 +179,8 @@
           'Unleash-Instanceid' => 'rspec/test',
           'User-Agent' => "UnleashClientRuby/#{Unleash::VERSION} #{RUBY_ENGINE}/#{RUBY_VERSION} [#{RUBY_PLATFORM}]",
           'Unleash-Sdk' => "unleash-client-ruby:#{Unleash::VERSION}",
-          'X-Api-Key' => '123'
+          'X-Api-Key' => '123',
+          'Unleash-Interval' => '15'
         }
       )
       .to_return(status: 200, body: features_response_body, headers: {})
@@ -288,7 +294,8 @@
           'Unleash-Instanceid' => 'rspec/test',
           'User-Agent' => "UnleashClientRuby/#{Unleash::VERSION} #{RUBY_ENGINE}/#{RUBY_VERSION} [#{RUBY_PLATFORM}]",
           'Unleash-Sdk' => "unleash-client-ruby:#{Unleash::VERSION}",
-          'X-Api-Key' => '123'
+          'X-Api-Key' => '123',
+          'Unleash-Interval' => '15'
         }
       )
       .to_return(status: 200, body: "", headers: {})
@@ -348,7 +355,8 @@
           'Unleash-Instanceid' => 'rspec/test',
           'User-Agent' => "UnleashClientRuby/#{Unleash::VERSION} #{RUBY_ENGINE}/#{RUBY_VERSION} [#{RUBY_PLATFORM}]",
           'Unleash-Sdk' => "unleash-client-ruby:#{Unleash::VERSION}",
-          'X-Api-Key' => '123'
+          'X-Api-Key' => '123',
+          'Unleash-Interval' => '15'
         }
       )
       .to_return(status: 200, body: features_response_body, headers: {})
@@ -642,7 +650,8 @@
             'Unleash-Instanceid' => 'rspec/test',
             'User-Agent' => "UnleashClientRuby/#{Unleash::VERSION} #{RUBY_ENGINE}/#{RUBY_VERSION} [#{RUBY_PLATFORM}]",
             'Unleash-Sdk' => "unleash-client-ruby:#{Unleash::VERSION}",
-            'X-Api-Key' => '123'
+            'X-Api-Key' => '123',
+            'Unleash-Interval' => '15'
           }
         )
         .to_return(status: 200, body: body, headers: {})
diff --git a/spec/unleash/configuration_spec.rb b/spec/unleash/configuration_spec.rb
index bf307d3e..e8dc83d3 100644
--- a/spec/unleash/configuration_spec.rb
+++ b/spec/unleash/configuration_spec.rb
@@ -17,7 +17,7 @@
       expect(config.custom_http_headers).to eq({})
       expect(config.disable_metrics).to be_falsey
 
-      expect(config.refresh_interval).to eq(10)
+      expect(config.refresh_interval).to eq(15)
       expect(config.metrics_interval).to eq(60)
       expect(config.timeout).to eq(30)
       expect(config.retry_limit).to eq(Float::INFINITY)
@@ -213,7 +213,8 @@
             yggdrasilVersion: anything,
             specVersion: anything,
             platformName: anything,
-            platformVersion: anything
+            platformVersion: anything,
+            connectionId: anything
           )
         )
     end
diff --git a/spec/unleash/metrics_reporter_spec.rb b/spec/unleash/metrics_reporter_spec.rb
index 9b07868c..f26d7fe1 100644
--- a/spec/unleash/metrics_reporter_spec.rb
+++ b/spec/unleash/metrics_reporter_spec.rb
@@ -71,7 +71,8 @@
           'Unleash-Appname' => 'my-test-app',
           'Unleash-Instanceid' => 'rspec/test',
           'User-Agent' => "UnleashClientRuby/#{Unleash::VERSION} #{RUBY_ENGINE}/#{RUBY_VERSION} [#{RUBY_PLATFORM}]",
-          'Unleash-Sdk' => "unleash-client-ruby:#{Unleash::VERSION}"
+          'Unleash-Sdk' => "unleash-client-ruby:#{Unleash::VERSION}",
+          'Unleash-Interval' => "60"
         }
       )
       .to_return(status: 200, body: "", headers: {})
@@ -158,7 +159,8 @@
           yggdrasilVersion: anything,
           specVersion: anything,
           platformName: anything,
-          platformVersion: anything
+          platformVersion: anything,
+          connectionId: anything
         )
       )
   end
diff --git a/spec/unleash/toggle_fetcher_spec.rb b/spec/unleash/toggle_fetcher_spec.rb
index 7e7b9aad..613c1c08 100644
--- a/spec/unleash/toggle_fetcher_spec.rb
+++ b/spec/unleash/toggle_fetcher_spec.rb
@@ -57,7 +57,7 @@
   describe '#fetch!' do
     let(:engine) { YggdrasilEngine.new }
 
-    context 'when fetching toggles succeds' do
+    context 'when fetching toggles succeeds' do
       before do
         _toggle_fetcher = described_class.new engine
       end