Getting errorThis webpage is not availablewitherror code : ERR_SPDY_PROTOCOL_ERRORwhile you browse popular sites on chrome net internet ride?
like Gmail, Wikipedia, Tumblr, Reddit, Facebook, Twitter, Youtube etc.
or any other website.
Actually this happens mostly https enabled websites.
What is this Error Actually?
Before we get a solution for this we need to understand that why this error appears.
It was developed by the Google.
But due to the HTTP 2 Vulnerability issue google stopped supporting SPDY protocol as they announced.
Reasons of the error ERR_SPDY_PROTOCOL_ERROR
As we researched there can be two reasons of it.
How to fix ERR_SPDY_PROTOCOL_ERROR
1.
Update Chrome surfing app
The First step is to update the chrome surfing app to the latest version.
As chrome stop supporting SPDY protocol, So in latest chrome release they should have fixed that issue.
You have to stick to this to add the website inweb shieldexclusion of Avast Software.
punch the setting Icon on Avast Antivirus then active protection and Customize for web shield option.
Or if you are getting errors for lots of sites with https enabled.
hey try suspend the HTTPS Scanning option inAvast Web Shieldmain Setting as in below screenshot.
Worth to try if nothing above work.
To dump the DNS Cache initiate the command prompt with administrator rights.
But if the problem is still there give a shot to remove and install chrome again.
Reinstalling latest chrome online window can hopefully fix the most of the issues.
Otherwise you have to switch the web app.
yo provide your feedback or any other suggestion / fix for this issue in the below comment box.