Appstore in lion osx 10.7 not connecting to internet

[billjoe]

hi my macair 2012 had yosemite i am trying to upgrade to catalina but the system inside was lion so now i'm going backwards and stuck with appstore not connecting

i have wifi working and safari can go on google or if i download firefox the internet works

i've tried some online fixes but still nothing

if you have any kind of solution please send it

thank you

 

[Bigwaff]

The system root certificates in older version of Mac OS have expired. You can attempt to update them following the instructions here but they may not work in Lion -

How do I update my root certificates on an older version of Mac OS (e.g. El Capitan)?

I have difficulty reaching various secure web sites. They give me a certificate expired error. They work on Firefox but not Safari or Chrome. They also work on newer versions of macOS (e.g. Catalin...

apple.stackexchange.com

However, your best bet is to download High Sierra, Mojave or Catalina, create USB installer media and install on your MBA from USB media.

How to Download macOS Sonoma, Ventura, Monterey, Big Sur, Catalina & Mojave Full Installers

How to download macOS Monterey, Big Sur, Catalina, Mojave, High Sierra, Sierra, El Capitan, Yosemite, Mavericks, Mountain Lion & Lion 7 ways!

mrmacintosh.com