Problems joining a domain on another subnet

Question

Hello everybody,

I am experiencing the following problem:

I have a DC and another Server on different subnets. They can ping each other and the other Server gets prtquery ldap response from the DC. However when I try to join the domain, I get the following error:
DNS was successfully queried for the service location (SRV) resource record used to locate a domain controller for domain "xxxxx.eu":

The query was for the SRV record for _ldap._tcp.dc._msdcs.xxxxx.eu

The following domain controllers were identified by the query:
yyyyyy.xxxxx.eu

However no domain controllers could be contacted.

Common causes of this error include:

• Host (A) or (AAAA) records that map the names of the domain controllers to their IP addresses are missing or contain incorrect addresses.
• Domain controllers registered in DNS are not connected to the network or are not running.

In the diag file I get this:

02/20/2021 16:54:20:490 NetpValidateName: checking to see if 'xxxxx.eu' is valid as type 3 name
02/20/2021 16:54:35:506 NetpCheckDomainNameIsValid for xxxxx.eu returned 0x54b, last error is 0x0
02/20/2021 16:54:35:506 NetpCheckDomainNameIsValid [ Exists ] for 'xxxxx.eu' returned 0x54b

I tried the solution with single label dns as well as the NeutralizeNT4Emulator proposal but to no avail.

DNS servers are correctly set and point to the DC. Any ideas?

Many thanks in advance!

Answer 1

Hi Patrick,

Many thanks!

Since these 2 are VPSs, I am not quite sure if I can remove them, but I will try tomorrow!

Many thanks for the swift replies!

Answer 2

Sounds good, you're welcome.

--please don't forget to Accept as answer if the reply is helpful--

Answer 3

Hi @Anonymous ,

the other adapters were ones of Virtualbox, I uninstalled them. However no success again. You mean to check between the route between the 2 gateways I think, but I think it is ok, since I can portqry from the workstation to the domain. I cannot log on both gateways, since there are not in my conrol, but they are letting the queries pass. Do you have any other ideas?

Many thanks in advance!

Answer 4

Please put up a new set of files.

Dcdiag /v /c /d /e /s:%computername% >c:\dcdiag.log
repadmin /showrepl >C:\repl.txt
ipconfig /all > C:\dc1.txt
ipconfig /all > C:\dc2.txt
netsh advfirewall monitor show currentprofile>C:\profile.txt
(etc. as other DC's exist)
ipconfig /all > C:\problemworkstation.txt
set > C:\problemworkstationvars.txt
C:\Windows\debug\netsetup.log

then put unzipped text files up on OneDrive and share a link.

Answer 5

Hi @Anonymous ,

please find attached the logs

DC:
https://1drv.ms/u/s!AmgzrhMURD3fghxuDoBKc6X4IPvz?e=JkMv05
WST:
https://1drv.ms/u/s!AmgzrhMURD3fgiEkaoT86zoKo5iR?e=qWEvd6

Many thanks!