This document provides steps to resolve the ERR_SSL_PROTOCOL_ERROR in Google Chrome. It suggests checking the system date and time, clearing browsing data and SSL state, disabling the QUIC protocol, revalidating antivirus settings, checking firewall settings, disabling extensions, adjusting internet security and privacy levels, and contacting support if the error persists.

1. Guide toTackle
ERR_SSL_PROTOCOL_E
RROR inGoogleChrome
Step-by-step instructions for taking care of Chrome’s
ERR_SSL_PROTOCOL_ERROR

2. Check your
system’s Date
andTime
 This is one of the most common mistake that happen when a user
access ssl enabled website.You should revalidate your computer
Date andTime after installing an SSL certificate on a website.

3. Clear
Browsing
Data
 Keep clear your browsing data, because sometime it causes an
error for SSL secured websites.We elaborated the steps for
clearing browsers data.
 Step 1: Press Control + Shift + Delete
 Step 2: Select “AllTime” from the data range
 Step 3: Check the boxes for Cached Images… and Cookies…
 Step 4: Click Clear Data

4. Clear yourSSL
state
 Here’s another option for getting rid of your SSL protocol error:
clear your SSL state.This is similar to clearing your cache,
sometimes it works—provided you have made a requisite offering
at the altar of the internet gods.
 Step 1: Go into Settings and select the Advanced tab
 Step 2: Scroll down to Open Proxy Settings
 Step 3: Go to the Content tab in the Internet Properties window and
clickClear SSL State

5. DisableQUIC
Protocol
 Technically, sometime QUIC Protocol enforce this SSL error. So
let’s turn that off, too.To do this you’re going to paste a custom
flag into the address bar.The flag is:
 Chrome://flags/#enable-quic

6. Revalidate
yourAntivirus
Settings
 Sometimes antivirus programs make mistakes.They’re supposed
to scan websites for malware and other dangers, but occasionally
it will get a bad signal or sniff out some outdated configuration
and block a legitimate site.When that happens you have to slap it
around a little and remind it who’s boss. So just go ahead and
disable your antivirus.What’s the worst that could happen?

7. Check your
Firewall?
 Got a firewall up? Might as well drop that, too. No, don’t do that.
That was a joke.What you need to do is check the blocklist your
Firewall keeps. If you see the site you’re trying to reach is on it, go
ahead and take it off. But maybe first you should pause for a
moment and reflect on what you’re doing with your life if you are
googling how to remove a blacklisted site from your firewall in the
first place.

8. Disable
Extensions
 One of your browser extensions could also be causing your
ERR_SSL_PROTOCOL_ERROR, too. So, if none of these other
solutions have worked, start disablingChrome extensions one by
one until one of them talks.You’ll find the culprit, eventually.

9. Adjust your
Internet
Security and
Privacy Level
 If you still can’t figure out how to get to the blasted site that is
giving you the ERR_SSL_PROTOCOL_ERROR, there’s one last
option you have.Type Internet Options into your address bar and
navigate to the Security tab of the window that just opened. Now
move the slider all the way down to lower your security and
privacy level.

10. ContactUs
 If you are still facing the ERR_SSL_PROTOCOL_ERROR, no worry
our SSL specialist will assist you here with proper instructions.
However, you could check a comprehensive guide for this
ERR_SSL_PROTOCOL_ERROR on our official blog post.
 OfficialWebsite: https://www.rapidsslonline.com/
 Contact Us via Google+ |Twitter | Facebook