diff --git a/ChangeLog b/ChangeLog
index f792a17f7..cf9fc8874 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -10,6 +10,7 @@ Enhancements:
 - #7263 Change name of Flatpak uploaded to snapshots
 - #7269 Reword file drag drop error to debug message
 - #7274 Only build necessary binaries
+- #7277 Change start errors to fatal
 
 1.14.6
 ======
diff --git a/src/lib/platform/MSWindowsWatchdog.cpp b/src/lib/platform/MSWindowsWatchdog.cpp
index 6281c2eaf..210b8dfe9 100644
--- a/src/lib/platform/MSWindowsWatchdog.cpp
+++ b/src/lib/platform/MSWindowsWatchdog.cpp
@@ -287,13 +287,13 @@ MSWindowsWatchdog::mainLoop(void*)
         
         }
         catch (std::exception& e) {
-            LOG((CLOG_ERR "failed to launch, error: %s", e.what()));
+            LOG((CLOG_CRIT "failed to launch, error: %s", e.what()));
             m_processFailures++;
             m_processRunning = false;
             continue;
         }
         catch (...) {
-            LOG((CLOG_ERR "failed to launch, unknown error."));
+            LOG((CLOG_CRIT "failed to launch, unknown error."));
             m_processFailures++;
             m_processRunning = false;
             continue;
@@ -370,7 +370,7 @@ MSWindowsWatchdog::startProcess()
 	}
 
     if (!createRet) {
-        LOG((CLOG_ERR "could not launch command"));
+        LOG((CLOG_CRIT "could not launch command"));
         DWORD exitCode = 0;
         GetExitCodeProcess(m_processInfo.hProcess, &exitCode);
         LOG((CLOG_ERR "exit code: %d", exitCode));
diff --git a/src/lib/synergy/App.cpp b/src/lib/synergy/App.cpp
index 1b391d99a..284e74882 100644
--- a/src/lib/synergy/App.cpp
+++ b/src/lib/synergy/App.cpp
@@ -203,7 +203,7 @@ App::initApp(int argc, const char** argv)
 
     // set log filter
     if (!CLOG->setFilter(argsBase().m_logFilter)) {
-        LOG((CLOG_PRINT "%s: unrecognized log level `%s'" BYE,
+        LOG((CLOG_CRIT "%s: unrecognized log level `%s'" BYE,
             argsBase().m_pname, argsBase().m_logFilter, argsBase().m_pname));
         m_bye(kExitArgs);
     }
diff --git a/src/lib/synergy/ArgParser.cpp b/src/lib/synergy/ArgParser.cpp
index d8e6abd49..b78a70cea 100644
--- a/src/lib/synergy/ArgParser.cpp
+++ b/src/lib/synergy/ArgParser.cpp
@@ -68,7 +68,7 @@ ArgParser::parseServerArgs(lib::synergy::ServerArgs& args, int argc, const char*
             continue;
         }
         else {
-            LOG((CLOG_PRINT "%s: unrecognized option `%s'" BYE, args.m_pname, argv[i], args.m_pname));
+            LOG((CLOG_CRIT "%s: unrecognized option `%s'" BYE, args.m_pname, argv[i], args.m_pname));
             return false;
         }
         ++i;
@@ -130,7 +130,7 @@ ArgParser::parseClientArgs(lib::synergy::ClientArgs& args, int argc, const char*
                 return true;
             }
 
-            LOG((CLOG_PRINT "%s: unrecognized option `%s'" BYE, args.m_pname, argv[i], args.m_pname));
+            LOG((CLOG_CRIT "%s: unrecognized option `%s'" BYE, args.m_pname, argv[i], args.m_pname));
             return false;
         }
         ++i;
@@ -138,7 +138,7 @@ ArgParser::parseClientArgs(lib::synergy::ClientArgs& args, int argc, const char*
 
     // exactly one non-option argument (server-address)
     if (i == argc) {
-        LOG((CLOG_PRINT "%s: a server address or name is required" BYE,
+        LOG((CLOG_CRIT "%s: a server address or name is required" BYE,
             args.m_pname, args.m_pname));
         return false;
     }
diff --git a/src/lib/synergy/ClientApp.cpp b/src/lib/synergy/ClientApp.cpp
index bdc908b4e..aa262cd5e 100644
--- a/src/lib/synergy/ClientApp.cpp
+++ b/src/lib/synergy/ClientApp.cpp
@@ -98,7 +98,7 @@ ClientApp::parseArgs(int argc, const char* const* argv)
                 // server.  a bad port will never get better.  patch by Brent
                 // Priddy.
                 if (!args().m_restartable || e.getError() == XSocketAddress::kBadPort) {
-                    LOG((CLOG_PRINT "%s: %s" BYE,
+                    LOG((CLOG_CRIT "%s: %s" BYE,
                         args().m_pname, e.what(), args().m_pname));
                     m_bye(kExitFailed);
                 }
diff --git a/src/lib/synergy/ServerApp.cpp b/src/lib/synergy/ServerApp.cpp
index 51a37adcb..682928a10 100644
--- a/src/lib/synergy/ServerApp.cpp
+++ b/src/lib/synergy/ServerApp.cpp
@@ -99,7 +99,7 @@ ServerApp::parseArgs(int argc, const char* const* argv)
                 m_synergyAddress->resolve();
             }
             catch (XSocketAddress& e) {
-                LOG((CLOG_PRINT "%s: %s" BYE,
+                LOG((CLOG_CRIT "%s: %s" BYE,
                     args().m_pname, e.what(), args().m_pname));
                 m_bye(kExitArgs);
             }
@@ -219,7 +219,7 @@ ServerApp::loadConfig()
     }
 
     if (!loaded) {
-        LOG((CLOG_PRINT "%s: no configuration available", args().m_pname));
+        LOG((CLOG_CRIT "%s: no configuration available", args().m_pname));
         m_bye(kExitConfig);
     }
 }