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Fix Windows Defender Port Already Allocated in Windows 11 - OpenVPN Exit Code 1: How to Fix Connection Failed-BitLocker Key Invalid? Here's How to Solve It

2026-06-13 14:45:22
Fix Windows Defender Port Already Allocated in Windows 11 - OpenVPN Exit Code 1: How to Fix Connection Failed-BitLocker Key Invalid? Here's How to Solve It

Result check

  • Keep one change per test run so you know which step helped.
  • Undo temporary changes after the issue is confirmed.

Next references

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