FAFO Mil
Not affiliated with the DoD or any government agency.

DTS login error: fixes for CAC and "account locked or cannot be found"

Most Defense Travel System (DTS) login errors come from either your CAC setup or your DTS profile. You can fix the first yourself. The second needs your Defense Travel Administrator (DTA).

1. Basic retry (from the official DTS guide)

  1. Seat your CAC firmly in the reader and leave it in the whole time you're in DTS.
  2. If you get any error, select OK or Retry Login and start again.
  3. Use a supported browser (DTMO's guide lists Chrome, Edge and Firefox). If there's no certificate prompt, fix your CAC reader and DoD certificates first.

2. "Your account is locked or cannot be found"

3. You got a new CAC

4. First time in DTS / SSN not found

5. Name mismatch

Still stuck

Related

Official sources

Last checked Oct 13, 2026.