502 Bad Gateway Certificate verify failed: unable to get local issuer certificate

Grant,

Thanks for your patience and help so far. When I clicked the padlock everything looked OK but one of the parameters "Cookies and site data" set me thinking. I use AntiTrack software on my Macbook, and it set me thinking whether this was related to the issue. When I added the Pru url to the allow list in the antitrack software and restarted it the site loaded! So although the error message says it is related to the cert the issue turns out to be one related to cookies and antitrack software.

Thanks for your time and help

Gerald

It occurs with a number of sites, a key one is https://mypru.pru.co.uk, which is The Prudential a financial services site

Thanks for your help so far. Clearing browser caches, resetting browsers, clearing dns cache etc. and all ‘normal’ actions don’t work, which is weird as it works ok on my iPad browsers.