Certificate problem in Radius with PEAP

I want to set up a Radius server for use in 802.1x, I want PEAP
autentication, so I need to configure TLS and certificates, I have
openssl and I have generated a CA and signed a certificate with it, I
have configured the radiusd.conf and the eap.conf, but I get this
error when I start radius in debug mode. I attach the tls section
because is the problematic one:

rlm_eap: Loaded and initialized type gtc
tls: rsa_key_exchange = no
tls: dh_key_exchange = yes
tls: rsa_key_length = 512
tls: dh_key_length = 512
tls: verify_depth = 0
tls: CA_path = "(null)"
tls: pem_file_type = yes
tls: private_key_file = "/var/ssl/newreq.pem"
tls: certificate_file = "/var/ssl/newreq.pem"
tls: CA_file = "/var/ssl/cacert.pem"
tls: private_key_password = "my_passwd"
tls: dh_file = "/etc/raddb/certs/dh"
tls: random_file = "/dev/urandom"
tls: fragment_size = 1024
tls: include_length = yes
tls: check_crl = no
tls: check_cert_cn = "(null)"
4419:error:0906D06C:PEM routines:PEM_read_bio:no start
lineem_lib.c:632:Expecting: CERTIFICATE
4419:error:0906D06C:PEM routines:PEM_read_bio:no start
lineem_lib.c:632:Expecting: CERTIFICATE
4419:error:140AD009:SSL routines:SSL_CTX_use_certificate_file:PEM
lib:ssl_rsa.c:534:
rlm_eap_tls: Error reading certificate file
rlm_eap: Failed to initialize type tls
radiusd.conf[9]: eap: Module instantiation failed.

It seems a problem in reading the certificates files, the
"/var/ssl/newreq.file", I have checked that the radius server has
enough privileges to access that file. That file is the server
certificate signed by the CA and was generated with openssl, this file
actually contains the private key and the public certificate, and is
of the form:

-----BEGIN RSA PRIVATE KEY-----
Proc-Type: 4,ENCRYPTED
DEK-Info: DES-EDE3-CBC,D50C8C4598225F1B

6yDmwg
....
PysPdPw==
-----END RSA PRIVATE KEY-----

-----BEGIN CERTIFICATE REQUEST-----
MIIB3zCC
.....

FhH7
-----END CERTIFICATE REQUEST-----

So I think the file is correct.

Does any one know about why the radius server is not reading the
certificates properly?

Thanks a lot !