How to Fix YouTube Comment Failed to Post (Updated for 2025)

Last updated: November 7, 2025

YouTube is a world-renowned video-sharing platform, and while generally reliable, users can occasionally face issues like a comment failing to post. This is a frustrating but usually fixable problem. The most effective first step is to refresh the app or browser to clear temporary glitches and retry posting your comment.

Here are the most up-to-date ways to troubleshoot and fix the “YouTube Comment Failed to Post” error:

Core Troubleshooting Steps

These initial steps often resolve the issue quickly, as they address common temporary glitches and connection problems:

• Refresh the Page or Relaunch the App: This is the quickest and most effective fix for temporary bugs. Simply reload the webpage or close and reopen the YouTube app (mobile) or your entire browser.
• Check Your Internet Connection:
  • Ensure your Wi-Fi or mobile data is stable.
  • Try disconnecting and reconnecting to your network.
  • If the issue persists, try restarting your modem or router.
• Log Out and Log Back In: YouTube sometimes “forgets” your session authorization. Signing out of your Google/YouTube account and logging back in can refresh the connection and permissions.
• Clear Browser Cache and Cookies: Accumulated browsing data can interfere with website functions. Clearing your browser’s cache and cookies for YouTube can resolve data-related conflicts.
• Update the YouTube App or Browser: Always ensure you are using the latest version of the YouTube app or your web browser (Chrome, Firefox, Safari, etc.) to benefit from the latest bug fixes and security updates.

---

Browser & Extension Checks

If the core steps don’t work, the problem might be related to your specific browser settings or extensions:

• Disable Ad-Blockers/Extensions: Browser extensions like AdBlock or NoScript can sometimes interfere with YouTube’s commenting script.
  • Temporarily disable these extensions, refresh the page, and try posting the comment again.
  • If the comment posts, you may need to add an exception for youtube.com or reconfigure the extension.
• Try Incognito/Private Mode: Open YouTube in an Incognito or Private browsing window. This mode disables most extensions and prevents the use of stored cache, offering a “clean” environment to test if the problem is specific to your normal browser setup.
• Check Cookie Settings: Ensure your browser settings are configured to accept third-party cookies, especially from youtube.com and google.com.
• Try a Different Browser: If all else fails, attempt to post the comment using an entirely different web browser.

See also: The Ultimate Guide to Ad Blockers in 2025: Adblock Plus vs AdBlock vs uBlock Origin

---

YouTube Specific Issues

Sometimes, the platform itself or your actions trigger its security mechanisms:

• Play the Video for a Few Seconds: YouTube’s spam detection may block comments if you pause the video immediately and try to comment. To register a “valid interaction,” play the video for a couple of seconds before scrolling to the comment section and posting.
• Wait for the Ad to Finish (or Skip): If an ad is playing on the video, YouTube might temporarily prevent comment posting. Let the ad play out, or click the “Skip Ad” button if available, then reload the page and try again.
• Avoid Posting Too Many Comments Quickly: YouTube may have an unpublished daily limit, often cited as around 500 comments per day. Posting too frequently can trigger spam filters and result in comments failing to post or being automatically removed.
• Check for Account Restrictions or Violations: If you have violated YouTube’s Community Guidelines in the past, your ability to comment may be temporarily or permanently restricted.
  • If your comment contains blocked words, links, or phrases, the channel owner may have filters set up that cause the comment to be held for review or simply fail to post.
• Comment Reply Glitch: If you are replying via a notification link, sometimes removing the &lc= parameter from the URL and reloading the video page can resolve the issue.

See also: 9 Methods to Fix: YouTube Videos Loading but Not Playing Error (2025 Guide)

---

FAQs

Question	Answer
Why is YouTube not adding my comment?	Comments are typically removed if they violate YouTube’s Community Guidelines (often by an automated system) or if the channel owner’s filters hold them for review. Your account may also be temporarily restricted if you’ve violated policies.
Can YouTube channel owners delete comments?	Yes. Channel owners can manually delete comments or set up filters (e.g., for specific words or phrases) that automatically hold or remove comments before they appear publicly.
Is there a limit on YouTube comments per day?	While YouTube doesn’t publish a strict official limit, users have reported issues after posting a high number of comments, often cited around 500 comments per 24 hours. This is generally a spam prevention measure.
How do I recover deleted YouTube comments?	Once a comment is deleted by the original commenter, the channel owner, or by YouTube for policy violation, it is permanently irrecoverable.

See also: How to Block YouTube Channels: Parental Controls Guide 2025