Running the Ciphersuites sample code on the nRF9161 I get Connection Refused on all attempted ciphersuites. Including after adding the CONFIG_EXTENDED_CIPHERSUITE_LIST=y to the prj.conf.
*** Booting nRF Connect SDK d96769faceca ***
TLS Ciphersuites sample started
Certificate mismatch
Provisioning certificate
Waiting for network.. OK
Trying all ciphersuites to find which ones are supported...
Trying ciphersuite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384
Connecting to example.com... connect() failed, err: 111, Connection refused
Trying ciphersuite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
Connecting to example.com... connect() failed, err: 111, Connection refused
Trying ciphersuite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
Connecting to example.com... connect() failed, err: 111, Connection refused
Trying ciphersuite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
Connecting to example.com... connect() failed, err: 111, Connection refused
Trying ciphersuite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
Connecting to example.com... connect() failed, err: 111, Connection refused
Trying ciphersuite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
Connecting to example.com... connect() failed, err: 111, Connection refused
Trying ciphersuite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
Connecting to example.com... connect() failed, err: 111, Connection refused
Trying ciphersuite: TLS_PSK_WITH_AES_256_CBC_SHA
Connecting to example.com... connect() failed, err: 111, Connection refused
Trying ciphersuite: TLS_PSK_WITH_AES_128_CBC_SHA256
Connecting to example.com... connect() failed, err: 111, Connection refused
Trying ciphersuite: TLS_PSK_WITH_AES_128_CBC_SHA
Connecting to example.com... connect() failed, err: 111, Connection refused
Trying ciphersuite: TLS_PSK_WITH_AES_128_CCM_8
Connecting to example.com... connect() failed, err: 111, Connection refused
Trying ciphersuite: TLS_EMPTY_RENEGOTIATIONINFO_SCSV
Connecting to example.com... connect() failed, err: 111, Connection refused
Trying ciphersuite: TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
Connecting to example.com... connect() failed, err: 111, Connection refused
Trying ciphersuite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
Connecting to example.com... connect() failed, err: 111, Connection refused
Trying ciphersuite: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
Connecting to example.com... connect() failed, err: 111, Connection refusedCiphersuite support summary for host `example.com`:
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384: No
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA: No
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256: No
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA: No
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA: No
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256: No
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA: No
TLS_PSK_WITH_AES_256_CBC_SHA: No
TLS_PSK_WITH_AES_128_CBC_SHA256: No
TLS_PSK_WITH_AES_128_CBC_SHA: No
TLS_PSK_WITH_AES_128_CCM_8: No
TLS_EMPTY_RENEGOTIATIONINFO_SCSV: No
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256: No
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384: No
TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256: NoFinished.