Domain – Can’t join Windows 7 to SBS 2008 Domain .. Could do with some help?(logs posted)

We have been getting this error for a while now while we try to connect a new windows 7 x64professional to a SBS 2008 domain.
I have done

net use \\Domaincontroller.internaldomain.local\ipc$ /u:internaldomain.local\administrator password

And it comes back with the following:

System error 71 has occurred.
No more connections can be made to this remote computer at this time because the
re are already as many connections as the computer can accept.

The Server is running Small Business Server 2008 and I was under the impression we didn't have to install CAL's on the server itself but just to keep a record of them?
There is only one domain controller in our network but there is 2 server 2003 servers

Reading the netsetup.log :

09/05/2011 16:20:34:449 NetpDoDomainJoin
09/05/2011 16:20:34:449 NetpMachineValidToJoin: 'NEWCOMPUTER'
09/05/2011 16:20:34:449     OS Version: 6.1
09/05/2011 16:20:34:449     Build number: 7601 (7601.win7sp1_gdr.110622-1506)
09/05/2011 16:20:34:449     ServicePack: Service Pack 1
09/05/2011 16:20:34:449     SKU: Windows 7 Professional
09/05/2011 16:20:34:449 NetpDomainJoinLicensingCheck: ulLicenseValue=1, Status: 0x0
09/05/2011 16:20:34:449 NetpGetLsaPrimaryDomain: status: 0x0
09/05/2011 16:20:34:449 NetpMachineValidToJoin: status: 0x0
09/05/2011 16:20:34:449 NetpJoinDomain
09/05/2011 16:20:34:449     Machine: NEWCOMPUTER
09/05/2011 16:20:34:449     Domain: InternalDomain.local
09/05/2011 16:20:34:449     MachineAccountOU: (NULL)
09/05/2011 16:20:34:449     Account: InternalDomain.local\administrator
09/05/2011 16:20:34:449     Options: 0x425
09/05/2011 16:20:34:449 NetpLoadParameters: loading registry parameters...
09/05/2011 16:20:34:449 NetpLoadParameters: DNSNameResolutionRequired not found, defaulting to '1' 0x2
09/05/2011 16:20:34:449 NetpLoadParameters: DomainCompatibilityMode not found, defaulting to '0' 0x2
09/05/2011 16:20:34:449 NetpLoadParameters: status: 0x2
09/05/2011 16:20:34:449 NetpValidateName: checking to see if 'InternalDomain.local' is valid as type 3 name
09/05/2011 16:20:34:574 NetpCheckDomainNameIsValid [ Exists ] for 'InternalDomain.local' returned 0x0
09/05/2011 16:20:34:574 NetpValidateName: name 'InternalDomain.local' is valid for type 3
09/05/2011 16:20:34:574 NetpDsGetDcName: trying to find DC in domain 'InternalDomain.local', flags: 0x40001010
09/05/2011 16:20:34:683 NetpLoadParameters: loading registry parameters...
09/05/2011 16:20:34:683 NetpLoadParameters: DNSNameResolutionRequired not found, defaulting to '1' 0x2
09/05/2011 16:20:34:683 NetpLoadParameters: DomainCompatibilityMode not found, defaulting to '0' 0x2
09/05/2011 16:20:34:683 NetpLoadParameters: status: 0x2
09/05/2011 16:20:34:683 NetpDsGetDcName: status of verifying DNS A record name resolution for 'DOMAINCONTROLLER.InternalDomain.local': 0x0
09/05/2011 16:20:34:683 NetpDsGetDcName: found DC '\\DOMAINCONTROLLER.InternalDomain.local' in the specified domain
09/05/2011 16:20:34:683 NetpJoinDomainOnDs: NetpDsGetDcName returned: 0x0
09/05/2011 16:20:34:792 NetUseAdd to \\DOMAINCONTROLLER.InternalDomain.local\IPC$ returned 71
09/05/2011 16:20:34:792 NetpJoinDomain: status of connecting to dc '\\DOMAINCONTROLLER.InternalDomain.local': 0x47
09/05/2011 16:20:34:792 NetpJoinDomainOnDs: Function exits with status of: 0x47
09/05/2011 16:20:34:792 NetpDoDomainJoin: status: 0x47
09/05/2011 16:20:34:792 -----------------------------------------------------------------
09/05/2011 16:20:34:792 NetpDoDomainJoin
09/05/2011 16:20:34:792 NetpMachineValidToJoin: 'NEWCOMPUTER'
09/05/2011 16:20:34:792     OS Version: 6.1
09/05/2011 16:20:34:792     Build number: 7601 (7601.win7sp1_gdr.110622-1506)
09/05/2011 16:20:34:792     ServicePack: Service Pack 1
09/05/2011 16:20:34:792     SKU: Windows 7 Professional
09/05/2011 16:20:34:792 NetpDomainJoinLicensingCheck: ulLicenseValue=1, Status: 0x0
09/05/2011 16:20:34:792 NetpGetLsaPrimaryDomain: status: 0x0
09/05/2011 16:20:34:792 NetpMachineValidToJoin: status: 0x0
09/05/2011 16:20:34:792 NetpJoinDomain
09/05/2011 16:20:34:792     Machine: NEWCOMPUTER
09/05/2011 16:20:34:792     Domain: InternalDomain.local
09/05/2011 16:20:34:792     MachineAccountOU: (NULL)
09/05/2011 16:20:34:792     Account: InternalDomain.local\administrator
09/05/2011 16:20:34:792     Options: 0x427
09/05/2011 16:20:34:792 NetpLoadParameters: loading registry parameters...
09/05/2011 16:20:34:792 NetpLoadParameters: DNSNameResolutionRequired not found, defaulting to '1' 0x2
09/05/2011 16:20:34:792 NetpLoadParameters: DomainCompatibilityMode not found, defaulting to '0' 0x2
09/05/2011 16:20:34:792 NetpLoadParameters: status: 0x2
09/05/2011 16:20:34:792 NetpValidateName: checking to see if 'InternalDomain.local' is valid as type 3 name
09/05/2011 16:20:34:901 NetpCheckDomainNameIsValid [ Exists ] for 'InternalDomain.local' returned 0x0
09/05/2011 16:20:34:901 NetpValidateName: name 'InternalDomain.local' is valid for type 3
09/05/2011 16:20:34:901 NetpDsGetDcName: trying to find DC in domain 'InternalDomain.local', flags: 0x40001010
09/05/2011 16:20:35:010 NetpLoadParameters: loading registry parameters...
09/05/2011 16:20:35:010 NetpLoadParameters: DNSNameResolutionRequired not found, defaulting to '1' 0x2
09/05/2011 16:20:35:010 NetpLoadParameters: DomainCompatibilityMode not found, defaulting to '0' 0x2
09/05/2011 16:20:35:010 NetpLoadParameters: status: 0x2
09/05/2011 16:20:35:010 NetpDsGetDcName: status of verifying DNS A record name resolution for 'DOMAINCONTROLLER.InternalDomain.local': 0x0
09/05/2011 16:20:35:010 NetpDsGetDcName: found DC '\\DOMAINCONTROLLER.InternalDomain.local' in the specified domain
09/05/2011 16:20:35:010 NetpJoinDomainOnDs: NetpDsGetDcName returned: 0x0
09/05/2011 16:20:35:151 NetUseAdd to \\DOMAINCONTROLLER.InternalDomain.local\IPC$ returned 71
09/05/2011 16:20:35:151 NetpJoinDomain: status of connecting to dc '\\DOMAINCONTROLLER.InternalDomain.local': 0x47
09/05/2011 16:20:35:151 NetpJoinDomainOnDs: Function exits with status of: 0x47
09/05/2011 16:20:35:151 NetpDoDomainJoin: status: 0x47

But I can't find any information anywhere that helps.

Can anyone suggest anything?