// troubleshooting guide · redis cloud
Redis Cloud SSL / TLS Connection Error
- Status
- Ongoing
- platforms:
- All clients
- updated:
- November 15, 2026
- reports:
- 3
- Method
- how we research
RUNBOOK · redis-cloud/ssl-tls-error2 FIXES
// quick answer
Free and Essentials endpoints are plain by default; TLS must be enabled on the database and the client must use rediss:// and trust the CA. Mismatch causes handshake or EOF errors.
Most likely fix: Match TLS on both sides
How to fix it
// try these in order, the most common fix is first
FIX 1Match TLS on both sides
- 01Check Security > TLS on the database
- 02Use rediss:// only if TLS is on, redis:// otherwise
- 03Download the server CA from the console if required
Did this fix it?FIX 2Update your client
- 01Upgrade redis-py, node-redis or Jedis to the current release
- 02Retest with redis-cli --tls
Did this fix it?
Symptoms
'SSL: WRONG_VERSION_NUMBER', 'ECONNRESET', 'Connection closed' right after connect.
Why it happens
- C-01Client uses TLS but database does not (or reverse)
- C-02Missing CA certificate
- C-03Using rediss:// against a non-TLS port
// this guide also covers
- redis cloud ssl error
- redis cloud tls connection
- redis wrong_version_number
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