| Problem | Likely solution | |---------|----------------| | “Usuario no válido” | You are not active in the system. Check with your Ocaso contact/HR. | | 2FA code not received | Verify your mobile number in profile. Request code again after 60s. | | Blank screen after login | Clear browser cache. Use Chrome, Edge, or Firefox (latest version). | | Cannot see a certain module | Your role lacks permission. Contact portal admin. | | Session expired too quickly | Portal logs out after 15–20 minutes of inactivity by design (security). |