Issue
- ESET security product cannot update the detection engine
- ESET security product shows "Undocumented Serious Error 0x101a" error
- ESET security product shows "Undocumented Serious Error 0x1106" error
- Clear update cache
- Proxy mode – Do not use proxy server
Solution
Clear update cache
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Press the F5 key to open Advanced setup.
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Click Update, click Clear next to Clear update cache, and click OK.
Proxy mode – Do not use proxy server
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Press the F5 key to open Advanced setup.
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Click Update, expand Profiles → Updates → Connection Options. Select Do not use proxy server from the Proxy mode drop-down menu and click OK.
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Restart your computer. Before you restart, bookmark this article.
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After your computer has restarted, open the main program window of your ESET Windows product.
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Click Update → Check for updates. Your ESET product should update automatically from now on.
If the issue is not resolved, uninstall and then reinstall your ESET product.