If you are having difficulties logging into Rezlynx via either the Rezlynx Browser, or our URL http://pms.eu.guestline.net/?siteid=SITEID in either Google Chrome or Edge following on from an update with our new SSO login page. This could be due to an expired Windows Security Certificate on your local PC and the contents of this article should be forwarded to your IT Team in order to to help resolve the issue.
You would be seeing the screen below and it no longer allows you to get past this to enter your username and password to login.
The first thing that can be checked here is the failures / errors that are populating in the developer tools.
Please click on to the three dots in the top right hand corner > More Tools > Developer Tools, as shown below:
If you then select the Console tab it should then display any errors or failures for you.
This link details how to view your installed Windows Certificates.
How to View Installed Certificates in Windows 10 / 8 / 7 | Password Recovery (top-password.com)
Below are some recommended online blogs and guides that we have put together to help you resolve this issue
Let’s Encrypt’s root certificate has expired, and it might break your devices | TechCrunch
Fixing Windows installs that don't receive updates to their trusted roots - Help - Let's Encrypt Community Support (letsencrypt.org)
Let's Encrypt Community Support (letsencrypt.org)
Chain of Trust - Let's Encrypt (letsencrypt.org)
Fix Broken LetsEncrypt SSL Certificate due to Expired Root CA Certificate (cloudraya.com)
Centmin Mod Managing Letsencrypt DST Root CA X3 Certificate Expiration On CentOS 7 - Centmin Mod Blog
Another potential solution is a work station rebuild, as this can often be the quickest option to fix the issue.