Outlook Not Syncing — Troubleshooting

If your Outlook emails aren't syncing or you're seeing old data, try these steps in order.

Step 1 — Check your internet connection

Open a web browser and check you can load a website.

Step 2 — Try Outlook on the web

Go to https://outlook.office365.com and sign in. If your emails are up to date there, the issue is with your desktop app, not your account.

Step 3 — Restart Outlook

Close Outlook completely and reopen it. Wait 2-3 minutes for it to sync.

Step 4 — Check for updates

Open Outlook > File > Office Account > Update Options > Update Now. Outdated versions can cause sync issues.

Step 5 — Clear the Outlook cache

1. Close Outlook
2. Press Windows + R, type %localappdata%\Microsoft\Outlook and press Enter
3. Delete the .ost file (this will re-download your emails from the server)
4. Reopen Outlook and wait for it to rebuild

If none of these steps resolve the issue, raise a ticket and we'll investigate further.

Still need help? Email support@edisonnetworks.net or call 0203 026 6317.