diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -214,6 +214,7 @@
 	-Wshadow-field
 	-Wrange-loop-analysis
 	-Wredundant-decls
+	-Wunreachable-code-loop-increment
 )
 add_compiler_flag_group(-Wformat -Wformat-security)
 add_cxx_compiler_flags(
diff --git a/src/init.cpp b/src/init.cpp
--- a/src/init.cpp
+++ b/src/init.cpp
@@ -1682,21 +1682,33 @@
 
     // also see: InitParameterInteraction()
 
-    // Warn if network-specific options (-addnode, -connect, etc) are
+    // Error if network-specific options (-addnode, -connect, etc) are
     // specified in default section of config file, but not overridden
     // on the command line or in this network's section of the config file.
     std::string network = gArgs.GetChainName();
+    bilingual_str errors;
     for (const auto &arg : gArgs.GetUnsuitableSectionOnlyArgs()) {
-        return InitError(strprintf(_("Config setting for %s only applied on %s "
-                                     "network when in [%s] section."),
-                                   arg, network, network));
+        errors += strprintf(_("Config setting for %s only applied on %s "
+                              "network when in [%s] section.") +
+                                Untranslated("\n"),
+                            arg, network, network);
+    }
+
+    if (!errors.empty()) {
+        return InitError(errors);
     }
 
     // Warn if unrecognized section name are present in the config file.
+    bilingual_str warnings;
     for (const auto &section : gArgs.GetUnrecognizedSections()) {
-        InitWarning(strprintf(Untranslated("%s:%i ") +
-                                  _("Section [%s] is not recognized."),
-                              section.m_file, section.m_line, section.m_name));
+        warnings += strprintf(Untranslated("%s:%i ") +
+                                  _("Section [%s] is not recognized.") +
+                                  Untranslated("\n"),
+                              section.m_file, section.m_line, section.m_name);
+    }
+
+    if (!warnings.empty()) {
+        InitWarning(warnings);
     }
 
     if (!fs::is_directory(GetBlocksDir())) {
diff --git a/src/util/translation.h b/src/util/translation.h
--- a/src/util/translation.h
+++ b/src/util/translation.h
@@ -23,6 +23,8 @@
         translated += rhs.translated;
         return *this;
     }
+
+    bool empty() const { return original.empty(); }
 };
 
 inline bilingual_str operator+(bilingual_str lhs, const bilingual_str &rhs) {
diff --git a/test/functional/feature_config_args.py b/test/functional/feature_config_args.py
--- a/test/functional/feature_config_args.py
+++ b/test/functional/feature_config_args.py
@@ -85,7 +85,6 @@
             inc_conf_file_path +
             ':1 Section [testnot] is not recognized.' +
             os.linesep +
-            'Warning: ' +
             inc_conf_file2_path +
             ':1 Section [testnet] is not recognized.')