I recently had my WordPress site built, but returning customers keep telling me their accounts won’t let them back in. New registrations go through, yet the moment someone logs out, the next login attempt is rejected. I suspect a plugin conflict, mis-configured user role, or security rule blocking them, but I can’t pin it down in the dashboard. Here’s what I need: • Diagnose and permanently fix whatever is preventing legitimate users from signing back in. • Show me exactly where the setting, conflict, or code snippet was so I can verify the fix and understand it for the future. • While you’re inside the site, guide me on quick wins that will nudge the site higher on Google—clean URLs, meta tags, caching advice, anything obvious you spot that can be implemented right away. You’ll have full admin access to a staging copy first, then we’ll push the solution live once the login works flawlessly and basic on-page SEO tweaks are in place. Clear communication and a concise hand-off document are all I ask.