Error H202 means QuickBooks can’t reach the company file on another computer. It’s a network issue — not a file corruption — and once you know what to configure, the fix is straightforward. Here’s the full process.
Why This Happens
H202 occurs when the workstation running QuickBooks can’t communicate with the computer hosting the company file. The most common culprits are: Windows Firewall blocking QuickBooks ports, the QuickBooks Database Server Manager not running on the host PC, or incorrect hosting settings on one of the machines.
Step-by-Step Fix
- On the host computer (where the company file lives), open QuickBooks Database Server Manager. If it’s not installed, download it from Intuit as part of the QuickBooks installer.
- In Database Server Manager, click Scan Folders and add the folder containing your company file. Let it finish scanning.
- On the host PC, open Windows Firewall (search in Start Menu). Go to Allow an app through firewall and ensure QuickBooks and QBDBMgrN are checked for both Private and Public networks.
- Add inbound rules for the following ports:
8019, 56728, 55378–55382(exact range depends on your QB version — check Intuit’s firewall port guide). - On each workstation, open QuickBooks, go to File > Utilities and confirm Host Multi-User Access is not checked (only the host machine should have it on).
- Restart the QuickBooks Database Server Manager service on the host: press Windows + R, type
services.msc, find QBDBMgrN and click Restart. - Open the company file from a workstation and confirm multi-user mode works.
Extra Tips to Prevent This in Future
- If your network uses a third-party firewall (Norton, McAfee, Bitdefender), you’ll need to add QuickBooks exceptions there too — Windows Firewall rules alone won’t be enough.
- Make sure all machines are on the same workgroup or domain. QuickBooks multi-user won’t work reliably across different network segments.
- Run the QuickBooks File Doctor tool (inside Tool Hub) if the above steps don’t resolve it — it can auto-detect and fix H-series errors.
Still Having Trouble?
If you’ve followed every step above and QuickBooks still isn’t cooperating, the issue may
run deeper than a configuration problem. A corrupted or invalid license key can trigger a
surprising range of errors — including the one you just experienced.
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