diff --git a/src/server.js b/src/server.js
index 8873fc74b..168f3529c 100644
--- a/src/server.js
+++ b/src/server.js
@@ -13,6 +13,7 @@ import CertificateProvider from './utils/CertificateProvider';
 import {RSocketServer, ReactiveSocket} from 'rsocket-core';
 import RSocketTCPServer from 'rsocket-tcp-server';
 import Client from './Client.js';
+import {RecurringError} from './utils/errors';
 
 const EventEmitter = (require('events'): any);
 const invariant = require('invariant');
@@ -261,10 +262,11 @@ class ConnectionTracker {
     this.connectionAttempts.set(key, entry);
     if (entry.length >= this.connectionProblemThreshold) {
       console.error(
-        `Connection loop detected with ${key}. Connected ${
-          entry.length
-        } times in ${(time - entry[0]) / 1000}s.`,
-        'ConnectionTracker',
+        new RecurringError(
+          `Connection loop detected with ${key}. Connected ${
+            this.connectionProblemThreshold
+          } times within ${this.timeWindowMillis / 1000}s.`,
+        ),
       );
     }
   }
diff --git a/src/utils/CertificateProvider.js b/src/utils/CertificateProvider.js
index 605b00793..5739d336b 100644
--- a/src/utils/CertificateProvider.js
+++ b/src/utils/CertificateProvider.js
@@ -6,6 +6,7 @@
  */
 
 import LogManager from '../fb-stubs/Logger';
+import {RecurringError} from './errors';
 const fs = require('fs');
 const adb = require('adbkit-fb');
 import {
@@ -82,7 +83,7 @@ export default class CertificateProvider {
     this.ensureOpenSSLIsAvailable();
     if (!appDirectory.match(allowedAppDirectoryRegex)) {
       return Promise.reject(
-        new Error(
+        new RecurringError(
           `Invalid appDirectory recieved from ${os} device: ${appDirectory}`,
         ),
       );
@@ -174,7 +175,7 @@ export default class CertificateProvider {
       fs.writeFileSync(destination + filename, contents);
       return Promise.resolve();
     }
-    return Promise.reject(new Error(`Unsupported device os: ${os}`));
+    return Promise.reject(new RecurringError(`Unsupported device os: ${os}`));
   }
 
   getTargetDeviceId(
@@ -209,7 +210,9 @@ export default class CertificateProvider {
       return Promise.all(deviceMatchList).then(devices => {
         const matchingIds = devices.filter(m => m.isMatch).map(m => m.id);
         if (matchingIds.length == 0) {
-          throw new Error(`No matching device found for app: ${appName}`);
+          throw new RecurringError(
+            `No matching device found for app: ${appName}`,
+          );
         }
         return matchingIds[0];
       });
@@ -261,11 +264,13 @@ export default class CertificateProvider {
     command: string,
   ): Promise<string> {
     if (!user.match(allowedAppNameRegex)) {
-      return Promise.reject(new Error(`Disallowed run-as user: ${user}`));
+      return Promise.reject(
+        new RecurringError(`Disallowed run-as user: ${user}`),
+      );
     }
     if (command.match(/[']/)) {
       return Promise.reject(
-        new Error(`Disallowed escaping command: ${command}`),
+        new RecurringError(`Disallowed escaping command: ${command}`),
       );
     }
     return this.adb
@@ -274,14 +279,14 @@ export default class CertificateProvider {
       .then(buffer => buffer.toString())
       .then(output => {
         if (output.match(appNotDebuggableRegex)) {
-          const e = new Error(
+          const e = new RecurringError(
             `Android app ${user} is not debuggable. To use it with sonar, add android:debuggable="true" to the application section of AndroidManifest.xml`,
           );
           this.server.emit('error', e);
           throw e;
         }
         if (output.toLowerCase().match(operationNotPermittedRegex)) {
-          const e = new Error(
+          const e = new RecurringError(
             `Your android device (${deviceId}) does not support the adb shell run-as command. We're tracking this at https://github.com/facebook/Sonar/issues/92`,
           );
           this.server.emit('error', e);
@@ -307,13 +312,13 @@ export default class CertificateProvider {
       .then(subject => {
         const matches = subject.trim().match(x509SubjectCNRegex);
         if (!matches || matches.length < 2) {
-          throw new Error(`Cannot extract CN from ${subject}`);
+          throw new RecurringError(`Cannot extract CN from ${subject}`);
         }
         return matches[1];
       })
       .then(appName => {
         if (!appName.match(allowedAppNameRegex)) {
-          throw new Error(
+          throw new RecurringError(
             `Disallowed app name in CSR: ${appName}. Only alphanumeric characters and '.' allowed.`,
           );
         }
diff --git a/src/utils/errors.js b/src/utils/errors.js
new file mode 100644
index 000000000..eca461f07
--- /dev/null
+++ b/src/utils/errors.js
@@ -0,0 +1,14 @@
+/**
+ * Copyright 2018-present Facebook.
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ * @format
+ */
+
+// Class of errors that may keep repeating but should only be logged once.
+export class RecurringError extends Error {
+  constructor(message: string) {
+    super(message);
+    this.name = 'RecurringError';
+  }
+}