Excel - File wasn't available on site

I’m using ignition 8.3 version - Unable to download the excel or upload file shows as ‘File wasn't available on site’ , happening at a random manner , Does this has to check with browser side or to handle in ignition

To easily rule out your browser as the cause, try other browsers/a private or incognito window, or at least with all browser extensions disabled.

ok , will try , but the same is working for ignition 8.1 . We have only 2GB RAM allocated to ignition Does insufficient RAM has any work on this ?

Maybe. I'd expect to see an error in the gateway logs if that was the issue.

I will say 2gB is not a lot for an Ignition gateway, especially one running Perspective. Not impossible to make it work, but if you're constantly fighting for headroom your experience overall is going to suffer.

"File wasn't available on site" (refer image FileNotAvailableError.png). on checking the console, found that unauthorized error was throwing every second when we are getting this issue. does this relate to some session timeout issue.