Fix Access Network Activity Increases After User Disconnects
Question details
Users experience slow performance and increased network traffic in a split Microsoft Access database after a client machine disconnects.
- Product
- Microsoft Access
- Device & OS
- not provided
- Scenario
- Operating a split Access database over a local area network where multiple client PCs connect to a host PC.
- Observed behavior
- Network activity spikes noticeably and database performance degrades on the remaining active machines after a secondary client disconnects from the database.
Ensure that no users are actively entering or editing critical data into the database before you begin troubleshooting network connections and lock files.
Inspect and Clear the Access Lock File
Stale or corrupted entries in the Access lock file (.ldb or .laccdb) can cause network performance issues when clients disconnect improperly.
Microsoft Access uses a lock file to track which users are currently accessing the database. If a user disconnects abruptly or the network drops, their PC might remain listed in the lock file. This corrupted state forces Access to constantly poll the network for the phantom user, resulting in a spike in network activity.
Open File Explorer and navigate to the shared folder on the host PC where the backend Access database file is stored.
Look for a file with the same name as your database but with an .ldb (for .mdb databases) or .laccdb (for .accdb databases) extension.
Ensure that all client computers have properly closed their frontend Access applications.
If the lock file still exists after all users have disconnected, right-click the lock file and select Delete to manually clear the stale sessions.
Upgrade the Network Speed
Upgrading the local network infrastructure significantly reduces the lag caused by database locking mechanisms.
Verify Database Split Architecture
Ensure the database is correctly split to minimize unnecessary network payloads.
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Frequently Asked Questions
Will converting my Access database from MDB to ACCDB fix the network issue?
No, converting the database format from the older MDB to the newer ACCDB format typically does not resolve network latency or lock file issues caused by client disconnects.
What exactly is a split Access database?
A split Access database separates the data tables into a 'backend' file located on a shared network drive, while the application objects like forms, queries, and reports are kept in a 'frontend' file stored locally on each user's computer.
Why does the Access lock file remain after users disconnect?
Lock files can remain or become corrupted if a client machine crashes, loses its network connection abruptly, or if severe network latency delays the release of the file lock back to the host machine.
