I keep loosing credential access from pc to NAS. os reinstall only works

done 

it seems like pc (rebooting or not) sometimes for a sort time do not accept any password. this happened since the first os reinstall in the NAS

no way, impossible to access without a os reinstal on the nas everytime

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carlocki wrote:

no way, impossible to access without a os reinstal on the nas everytime

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This is almost certainly a PC issue.

Is the NAS using a reserved DHCP address?

here?

Microsoft Windows [Versione 10.0.19044.2130]
(c) Microsoft Corporation. Tutti i diritti sono riservati.

C:\Users\Carlo>net use a: \\192.1xx.1xx.1xx\data /user:admin @xxxxxxxxxx
Errore di sistema 1219.

Le connessioni multiple a un server o a una risorsa condivisa da parte dello stesso utente, utilizzando più di un nome utente, non sono consentite. Interrompere tutte le connessioni precedenti al server o alla risorsa condivisa e riprovare.

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carlocki wrote:

 

here?

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Ok, it looks like you have configured a static IP address on the NAS.

Normally I recommend using DHCP for the NAS, and reserving the IP address in the router instead (most routers have that feature).

One thing you do need to be careful about with a static address - you need to make sure that the router doesn't assign 192.168.1.100 to another device on the network.  That creates duplicate addresses, which can result in a lot of strange problems.

Have you also set up the router to make sure that the DHCP range doesn't include 192.168.1.100?  (Or any other static addresses that you might have assigned)?  If not, you should either do that, or instead reserve 192.168.1.100 for the NAS in the router.

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carlocki wrote:

Microsoft Windows [Versione 10.0.19044.2130]
(c) Microsoft Corporation. Tutti i diritti sono riservati.

C:\Users\Carlo>net use a: \\192.1xx.1xx.1xx\data /user:admin @xxxxxxxxxx
Errore di sistema 1219.

Le connessioni multiple a un server o a una risorsa condivisa da parte dello stesso utente, utilizzando più di un nome utente, non sono consentite. Interrompere tutte le connessioni precedenti al server o alla risorsa condivisa e riprovare.

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This error is a PC issue.  

Windows only allows you to access the NAS using one username/password.  If the PC already has a connection to the NAS using a different username/password, you will get this error.  The net use /del /y normally closes all those connections - which is why I always tell people to use that command before trying to map a NAS share to a drive letter.  But sometimes that command doesn't prevent the 1219 error.

You can also try substituting the NAS hostname for the IP address - Windows treats the hostname as a different device than the IP address.

Note that rebooting the PC will close all the connections, but there might be something happening at startup to reopen one. 

Changed nas name, tried to connect again from network on pc and no way still password does not work

in this way I can access

so i cannot map single shortcuts or nas partition

shares....

I can do an os reinstall, what is different now I perfectly know how to manage password. 

any other way?

os reinstal again?

OS REINSTALL DONE AGAIN

everything works. IT depends on changin password or going through a static ip

Now I am using dhcp