samba - Aug 2018 - receive_smb_raw_talloc failed for client - cannot get to shares

hi guys

I have classic nt-style samba and windows 10 clients (one even updated 
to 1803 and works okey) but(as there always have to be a but).. I've 
just got new installation off a 1709 build but this time it's
"Education
N" (where Pro 1709 does not have this problem) and the problem is:

I cannot get to shares, on that "Education N" I get no
login/credentials
prompt when trying \\I.P in explorer, straight I get a pop window with:

"Windows cannot access ... bla bla..

Error code: 0x80004005

Unspecified error.


and samba log for the machine:

...

[2018/08/15 17:18:33.046331,  5] 
../source3/auth/auth.c:400(load_auth_module)
   load_auth_module: Attempting to find an auth method to match sam
[2018/08/15 17:18:33.046353,  5] 
../source3/auth/auth.c:425(load_auth_module)
   load_auth_module: auth method sam has a valid init
[2018/08/15 17:18:33.046374,  5] 
../source3/auth/auth.c:400(load_auth_module)
   load_auth_module: Attempting to find an auth method to match 
winbind:trustdomain
[2018/08/15 17:18:33.046395,  5] 
../source3/auth/auth.c:400(load_auth_module)
   load_auth_module: Attempting to find an auth method to match trustdomain
[2018/08/15 17:18:33.046416,  5] 
../source3/auth/auth.c:425(load_auth_module)
   load_auth_module: auth method trustdomain has a valid init
[2018/08/15 17:18:33.046529,  5] 
../source3/auth/auth.c:425(load_auth_module)
   load_auth_module: auth method winbind has a valid init
[2018/08/15 17:18:33.046552,  5] 
../source3/auth/auth.c:400(load_auth_module)
   load_auth_module: Attempting to find an auth method to match 
sam_ignoredomain
[2018/08/15 17:18:33.046586,  5] 
../source3/auth/auth.c:425(load_auth_module)
   load_auth_module: auth method sam_ignoredomain has a valid init
[2018/08/15 17:18:33.047693,  1] 
../source3/smbd/process.c:555(receive_smb_talloc)
   receive_smb_raw_talloc failed for client ipv4:172.24.54.23:49882 read 
error = NT_STATUS_CONNECTION_RESET.


Samba Version 4.7.1 @centos 7.5

Anybody might have some suggestion I'd be grateful.

many thanks, L.

On Wed, Aug 15, 2018 at 05:23:12PM +0100, lejeczek via samba
wrote:
> hi guys
> 
> I have classic nt-style samba and windows 10 clients (one even updated to
> 1803 and works okey) but(as there always have to be a but).. I've just
got
> new installation off a 1709 build but this time it's "Education
N" (where
> Pro 1709 does not have this problem) and the problem is:
> 
> I cannot get to shares, on that "Education N" I get no
login/credentials
> prompt when trying \\I.P in explorer, straight I get a pop window with:
> 
> "Windows cannot access ... bla bla..
> 
> Error code: 0x80004005
> 
> Unspecified error.
> 
> 
> and samba log for the machine:
> 
> ...
> 
> [2018/08/15 17:18:33.046331,  5]
> ../source3/auth/auth.c:400(load_auth_module)
>   load_auth_module: Attempting to find an auth method to match sam
> [2018/08/15 17:18:33.046353,  5]
> ../source3/auth/auth.c:425(load_auth_module)
>   load_auth_module: auth method sam has a valid init
> [2018/08/15 17:18:33.046374,  5]
> ../source3/auth/auth.c:400(load_auth_module)
>   load_auth_module: Attempting to find an auth method to match
> winbind:trustdomain
> [2018/08/15 17:18:33.046395,  5]
> ../source3/auth/auth.c:400(load_auth_module)
>   load_auth_module: Attempting to find an auth method to match trustdomain
> [2018/08/15 17:18:33.046416,  5]
> ../source3/auth/auth.c:425(load_auth_module)
>   load_auth_module: auth method trustdomain has a valid init
> [2018/08/15 17:18:33.046529,  5]
> ../source3/auth/auth.c:425(load_auth_module)
>   load_auth_module: auth method winbind has a valid init
> [2018/08/15 17:18:33.046552,  5]
> ../source3/auth/auth.c:400(load_auth_module)
>   load_auth_module: Attempting to find an auth method to match
> sam_ignoredomain
> [2018/08/15 17:18:33.046586,  5]
> ../source3/auth/auth.c:425(load_auth_module)
>   load_auth_module: auth method sam_ignoredomain has a valid init
> [2018/08/15 17:18:33.047693,  1]
> ../source3/smbd/process.c:555(receive_smb_talloc)
>   receive_smb_raw_talloc failed for client ipv4:172.24.54.23:49882 read
> error = NT_STATUS_CONNECTION_RESET.
All this means is the client sent a RST TCP packet and terminated
the connection. Look at the wireshark logs on TCP port 445 to find out what
caused
the problem.

On 15/08/18 17:23, lejeczek via samba wrote:
> hi guys
>
> I have classic nt-style samba and windows 10 clients (one even updated 
> to 1803 and works okey) but(as there always have to be a but).. I've 
> just got new installation off a 1709 build but this time it's 
> "Education N" (where Pro 1709 does not have this problem) and the
> problem is:
>
> I cannot get to shares, on that "Education N" I get no 
> login/credentials prompt when trying \\I.P in explorer, straight I get 
> a pop window with:
>
> "Windows cannot access ... bla bla..
>
> Error code: 0x80004005
>
> Unspecified error.
>
>
> and samba log for the machine:
>
> ...
>
> [2018/08/15 17:18:33.046331,  5] 
> ../source3/auth/auth.c:400(load_auth_module)
>   load_auth_module: Attempting to find an auth method to match sam
> [2018/08/15 17:18:33.046353,  5] 
> ../source3/auth/auth.c:425(load_auth_module)
>   load_auth_module: auth method sam has a valid init
> [2018/08/15 17:18:33.046374,  5] 
> ../source3/auth/auth.c:400(load_auth_module)
>   load_auth_module: Attempting to find an auth method to match 
> winbind:trustdomain
> [2018/08/15 17:18:33.046395,  5] 
> ../source3/auth/auth.c:400(load_auth_module)
>   load_auth_module: Attempting to find an auth method to match 
> trustdomain
> [2018/08/15 17:18:33.046416,  5] 
> ../source3/auth/auth.c:425(load_auth_module)
>   load_auth_module: auth method trustdomain has a valid init
> [2018/08/15 17:18:33.046529,  5] 
> ../source3/auth/auth.c:425(load_auth_module)
>   load_auth_module: auth method winbind has a valid init
> [2018/08/15 17:18:33.046552,  5] 
> ../source3/auth/auth.c:400(load_auth_module)
>   load_auth_module: Attempting to find an auth method to match 
> sam_ignoredomain
> [2018/08/15 17:18:33.046586,  5] 
> ../source3/auth/auth.c:425(load_auth_module)
>   load_auth_module: auth method sam_ignoredomain has a valid init
> [2018/08/15 17:18:33.047693,  1] 
> ../source3/smbd/process.c:555(receive_smb_talloc)
>   receive_smb_raw_talloc failed for client ipv4:172.24.54.23:49882 
> read error = NT_STATUS_CONNECTION_RESET.
>
>
> Samba Version 4.7.1 @centos 7.5
>
> Anybody might have some suggestion I'd be grateful.
>
> many thanks, L.
>
>
okey, so that is that infamous SMB1(lack of) problem.