Encountering the banner message "An error has occurred. Please try again later" while attempting to log in, post updates, or view profiles on LinkedIn is usually caused by corrupted browser cookies, conflicting browser extensions, or stale OAuth session tokens.

Step-by-Step Resolution Steps

1. Clear Domain Cookies: Open Browser Developer Tools (F12) -> Application -> Cookies -> Delete all cookies for linkedin.com. 2. Disable Adblocker Extensions: Privacy extensions (uBlock Origin, Privacy Badger) can block telemetry script endpoints required for LinkedIn session handshakes. 3. Test Incognito Mode: Open an Incognito/Private window to test if a clean session bypasses browser extensions.