[Samba] dns_tkey_negotiategss: TKEY is unacceptable

[Carlos A. P. Cunha]

Hello!
I've got this error
dns_tkey_negotiategss: TKEY is unacceptable

when running samba_dnsupdate --verbose

With this error dynamic entries stopped working as Type A machines that 
entered in the field or entry to a new DC.

Already tried the step described here

https://wiki.samba.org/index.php/Dns_tkey_negotiategss:_TKEY_is_unacceptable

But when trying to delete the account used the same says that there is 
(and it really is not listed, create a manual account ok), but when running

samba_upgradedns --dns-backend = BIND9_DLZ

I got the error

Reading domain information
Traceback (most recent call last):
File "/ opt / samba / sbin / samba_upgradedns", line 262, in <module>
paths, lp.configfile, lp)
File 
"/opt/samba/lib/python2.7/site-packages/samba/provision/__init__.py", 
line 282, in find_provision_key_parameters
names.policyid = str (res7 [0] ["cn"]). replace ("{", ""). replace ("}", "")
IndexError: list index out of range

With more Debug

[....]

Module 'tombstone_reanimate' is disabled. Skip 
registration.lpcfg_servicenumber: could not find ldb
schema_fsmo_init: we are master [in] updates allowed [in]
lpcfg_servicenumber: could not find ldb
lpcfg_servicenumber: could not find ldb
lpcfg_servicenumber: could not find ldb
schema_fsmo_init: we are master [in] updates allowed [in]
Traceback (most recent call last):
File "/ opt / samba / sbin / samba_upgradedns", line 262, in <module>
paths, lp.configfile, lp)
File 
"/opt/samba/lib/python2.7/site-packages/samba/provision/__init__.py", 
line 282, in find_provision_key_parameters
names.policyid = str (res7 [0] ["cn"]). replace ("{", ""). replace ("}", "")
IndexError: list index out of range


Thanks