Google Chrome returning 503 Service Unavailable - google-chrome

I have been having an issue lately with Google Chrome. Some sites, seems to be completely random, are returning a 503 Service Unavailable error message. The last one I received was from my hosting provider when trying to access my CPanel. I can access the same URL completely fine in Firefox or IE. It seems to be isolated to Chrome.
I have tried the following:
Disabled all extensions
Logged in/out of my Google account
Cleared all cache and history
So far, nothing seems to correct the issue. It's becoming more and more aggravating from what was once a pretty reliable browser.
I am running:
Windows 7
Chrome Version 36.0.1985.143 m

I was hitting the same issue. Mostly, it would occur on intranet sites at work, but it happened with a few exterior sites. Loading in IE Tab would work fine.
I was able to solve the issue by upgrading to 64-bit Chrome. I'm not sure why that fixed it, but I think it had something to do with a conflict between Java and Chrome (It looks like I have both 64bit and 32bit Java installed side-by-side).

My solution:
Uninstall Chrome with clear personal data option selected
Install Chrome again but without admin right (install for your personal
user)
Use Chrome as normal

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Error with google adsense js on my computer

It seems like I have an issue with google adsense as the ads are not displaying on chrome nor firefox on my computer but they are displaying on opera when it's on vpn. I tried this with both wifi and mobile 3G data but I keep getting this error:
Failed to load resource: net::ERR_CONNECTION_REFUSED pagead2.googlesyndication.com/pagead/js/adsbygoogle.js:1
Note:
I previously had adblock on chrome but I uninstalled it long ago so it shouldn't be the reason
I removed and re-installed google chrome
I never used firefox before (so there's no adblock on it)
When I use 3G mobile data, the ads still don't show on my computer but do show on my phone (android google chrome)
I have this same error message on all websites I access even if it is not mine
I faced a similar kind of issue:
NET::ERR_CERT_AUTHORITY_INVALID
//pagead2.googlesyndication.com/pagead/js/adsbygoogle.js
Found that this was due to VPN blocking //pagead2.googlesyndication.com/pagead/js/adsbygoogle.js since it thinks we are accessing a site that is not authorized to be used
So regardless of AdBlock or without AdBlock, we will see the adblock message.
Not sure if you are facing same issue but it would be good to check your firewall/company vpn if any.

How do I eliminate err_invalid_response on my website?

' I run a website https://www.laughingmessiah.com made on Wix platform. Its giving me Err_invalid response error. I have tried following steps to get it running-
-Deleted my cookies and cache
-Tried it over multiple devices and different connections
-Tried using different browsers
-Did ipconfig/flush dns on command prompt
-Tried it on incognito mode
-Deleted and reinstalled chrome
-completely disabled my antivirus
-disabled all extensions on chrome
However none of the steps worked out. Would really appreciate if someone can suggest what is the issue out here. It was working fine few days back.

How to fix NET::ERR_CERT_AUTHORITY_INVALID on my site while using google chrome on macOS Sierra Version 10.12?

When i tried to open my site (https://thaimeditationcenter.com/) by Google Chrome on My mac using macOS Sierra Version 10.12 i got an error like this.
Your connection is not private
Attackers might be trying to steal your information from thaimeditationcenter.com
(for example, passwords, messages, or credit cards). NET::ERR_CERT_AUTHORITY_INVALID
Automatically report details of possible security incidents to Google. Privacy policy
But when i open it on Firefox , Safari or Google chrome on my Iphone it seems fine there was no error at all.
How can i fix this?
Thanks!
According to SSLLabs your site is not configured properly:
Chain issues Incomplete
This means that a chain certificates is missing. Some browsers cache chain certificates when visiting other sites and therefore can work around this problem. Other browsers try to download the missing chain certificate. The rest will fail because the trust chain cannot be built.
To fix this you need to add the missing chain certificate to your server configuration. While doing that you should probably also fix all the other problems shown by the SSLLabs report which lead to a bad Grade F for your site.

Google Chrome refusing to open pages in Windows 10

I'm running Google Chrome on Windows 10, latest editions. Chrome refuses to open any pages, returning "Aw snap" error messages. To resolve this I've:
Removed all extensions.
Uninstalled and reinstalled Chrome.
Tried Chrome on a different user.
Ran Chrome Cleanup Tool.
Deleted my Google folder in Appdata.
Incognito pages don't work either.
None of these worked. Firefox at all times is working perfectly so its not an internet problem.
Anyone have any ideas on how to fix this?
Please follow below steps, to resolve "Aw snap" error messages with Chrome browser.
Steps To Resolve:
Go to Chrome shortcut in the Desktop (If not exists create one)
Right click -> Properties
In the target field, At the end add a space followed by the below -no-sandbox
Apply-Ok
Launch chrome using the shortcut
Follow the below steps
Go to windows task manager
go to details tab
kill all the chrome process
run the chrome it will open
It is likely that malware is trying (and failing) to modify the page that is loading. I've also seen this as a symptom of machines that had nasty redirect malware removed, as the redirects that the malware creates no longer have anywhere to resolve.
I highly recommend a fresh Windows 10 install, only way to be sure you're fully free of whatever may have infected your current Windows installation.

Geolocation not working on Chrome even from a host server

I was working on a html5 file which uses geolocation. It was working fine in Chrome version 38.0.2125.111m from both loading the file locally and from a host server. Now, Chrome does not work for geolocation from either resource. I understand the security issue when running the file locally, but it still happens from any website that is running geolocation. I get the error message of "geocode service failed". BUT runs fine from both resources using Firefox. I have a windows 7 x64 laptop. The code that I am using is right off of Google geolocation example...
I've also went to the chrome's privacy-security-location settings and checked to use allow all sites to check location and still the problem continues... Help!
I think I found a clue. I copied the geolocaton file to another website and ran fine using the same chrome version which makes me believe that it is the google api keys that was causing the problem. I deleted the keys for both local and web host and will see in a few days if indeed this was the case. If it is, then I suggest not to establish api keys during development until app is ready for production.