The NET :: ERR_CERT_WEAK_SIGNATURE_ALGORITHM error occurs when visiting sites through Chrome. The reason is in the SSL certificate of the web resource, which the browser did not “like”. He “believes” that the site is not secure enough and that visiting it is fraught with user data leakage.
How to fix the NET :: ERR_CERT_WEAK_SIGNATURE_ALGORITHM error?
First, make sure Windows is up to date and has the latest version of Chrome.
# 1: remove the inappropriate browser extension
Visit the site in incognito mode. If the error is not issued, then the Chrome add-ons are buggy. One of them replaced the standard security certificates with its own. We calculate this extension as follows:
- turn off all browser add-ons;
- turn on one at a time and go to the site;
- we find out after enabling which extension the NET :: ERR_CERT_WEAK_SIGNATURE_ALGORITHM error is displayed;
- remove the add-on.
It happens that an application is installed on the PC that independently replaces certificates and adds its plugins to the browser. In this case, remove not only the add-on, but also the “mother” program. Often the user does not even know that such an application is in the system. Review the list of installed programs and mark those that you did not use. They are often the culprit behind the problem.
# 2: changing the antivirus (firewall) settings
Antivirus programs can spoof certificates. This is calculated by clicking on the NET :: ERR_CERT_WEAK_SIGNATURE_ALGORITHM error itself – details will appear. Pay attention to the field “Issuer:” – there will be indicated the service, the certificate of which raises doubts in the browser. If the names of your antivirus or firewall are there, the problem is in them. For example, sometimes enabling https or ssl scanning in Avast causes an error. Switch to another antivirus or experimentally figure out what antivirus settings “interfere” with Chrome.
# 3: reset network and security settings on the system
- Clearing SSL. We press the combination Win + R, enter in the appeared field inetcpl.cpl and press Enter. The application “Internet Properties” will start, go to the “Contents” tab, find the “Certificates” block and click on “Clear SSL”.
- Reconfiguration of network settings. Open a command prompt with administrator rights. Next, run the following commands one by one: ipconfig / flushdns, ipconfig / renew, ipconfig / registerdns, netsh int ip set dns, netsh winsock reset… Now reboot.
# 4: clear the Chrome cache
In the enabled browser, press the combination Ctrl + Shirt + Del… In the window, select the segment “for all time” and set the checkboxes opposite the fields “clear cache” and “clear cookies”. Sometimes this helps to cope with the NET :: ERR_CERT_WEAK_SIGNATURE_ALGORITHM error, but the previously indicated methods are much more efficient.