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8. Here’s a structured table summarizing all the main reasons why a 1C license might stop working and recommended recovery actions:
Reason | License Type Affected | How to Fix / Recommended Action |
Hard drive / SSD replaced or failed | Software | Reactivate via 1C Licensing Center; restore from backup if possible |
Motherboard replaced | Software | Request reactivation from 1C support (hardware ID changed) |
Network card replaced (MAC changed) | Software / Network | Reactivate or reissue license |
BIOS reset / firmware update | Software | Reactivate license; ensure BIOS settings are stable |
Hardware failure (bad sectors, controller issues) | Software / Hardware key | Repair hardware and restore license or contact support |
Cloned or moved virtual machine | Software | Reactivate after moving VM; avoid cloning licensed VMs |
OS reinstallation or upgrade | Software | Reactivate license; keep backup of license files |
System restored from backup without license data | Software | Restore license folder or reactivate manually |
Registry cleaning tools removed license keys | Software | Reactivate license; exclude 1C registry keys from cleaners |
License folder deleted (C:\ProgramData\1C\licenses) | Software | Restore from backup or reactivate |
Failed 1C update damaged license | Software | Reinstall 1C platform; reactivate license |
Antivirus or Defender blocked license files | Software / Network | Add exclusions to antivirus; restore and reactivate license |
1C service or RLM server not running | Network | Restart services; check ports and firewall |
Lost connection to license server | Network | Check RLM server status and network connectivity |
Server IP changed | Network | Update client connection settings |
Firewall / antivirus blocking license ports | Network | Add exceptions for RLM ports |
Multiple license servers in same network | Network | Leave only one active RLM server |
License service crashed or failed to start | Network / Software | Restart service or server; check logs |
Dongle physically damaged | Hardware | Replace key; request duplicate from vendor |
Drivers not installed or corrupted | Hardware | Reinstall HASP/Sentinel drivers |
Key inserted into different USB port / not detected | Hardware | Plug into same port; check Device Manager |
USB instability or unsafe removal | Hardware | Use stable USB port; never unplug during use |
VM moved to another host | Software | Reactivate license; avoid moving without reactivation |
Changed hypervisor (e.g., VMware → VirtualBox) | Software | Reactivate; avoid changing virtualization platform |
Changed VM UUID / MAC address | Software | Restore original parameters or reactivate license |
Snapshot rollback without license state | Software | Reactivate after rollback |
License expired (temporary license) | All | Renew or purchase permanent license |
Incorrect system date/time | Software / Network | Correct time settings; restart 1C services |
Activation failed (server unavailable) | All | Retry later or contact 1C support |
Administrator deleted license data | All | Restore from backup or reactivate |
Corrupted registry or system files | Software | Run system repair and reactivate license |
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