ready NAS 102 : impossible to update firmware & to save conf

So, I did it!!

My certificat, in the NAS parameter HTTPS was named nas-BF-2F-A7.local

I added yesterday afternoon on the Trusted Root Certification Authorities store, but that didn't worked...

In fact, I had to rename this certificat using that explanation

1. First, examine the certificate. (Left click on "Certificate Error" in address bar, and click "View Certificate".) If the certificates "Issued to:" and current IP is different, navigate FrontView/Services/Standard_FIle_protocol. Under "HTTPS" service, there is "Generate new key" button. Specify "SSL key host" match with your ReadyNAS' IP, and click "Generate" button. And exit IE7 (to flush cache), and connect to FrontView again.
2. Then install certificate into IE7. Left click on "Certificate Error" in address bar of IE7, and click "View Certificate". There is "Install Certificate.." button. Click this button to start "Certificate Import Wizard", so follow Wizard to install certificate.
Please note that Windows Vista works different than XP. When you are using Vista, you need to specify ReadyNAS as "Trusted Zone", otherwise you don't see "Install Certificate.." button when viewing certificate. And while walking through "Certificate Import Wizard", you need to click "Place all certificates in the following store" radio button, and specify "Trusted Root Certification Authorities". (If you place a certificate in your personal store, IE will not trust it.)

Now, my certificat is named 192.168.0.7 (my NAS local ip adress)

But when I tried to add the certificat with IE I couldn't add it on the good store (Trusted Root Certification Authorities store), so I've saved the certificat on my computer and used this way to put the certifcat on the good shoop :

Adding certificates to the Trusted Root Certification Authorities store for a local computer
Administrators is the minimum group membership required to complete this procedure.
To add certificates to the Trusted Root Certification Authorities store for a local computer
Click Start, click Start Search, type mmc, and then press ENTER.
On the File menu, click Add/Remove Snap-in.
Under Available snap-ins, click Certificates,and then click Add.
Under This snap-in will always manage certificates for, click Computer account, and then click Next.
Click Local computer, and click Finish.
If you have no more snap-ins to add to the console, click OK.
In the console tree, double-click Certificates.
Right-click the Trusted Root Certification Authorities store.
Click Import to import the certificates and follow the steps in the Certificate Import Wizard.

Now, I've no message security warning either with chrome & ie :)

But I've tried to backup my NAS system (using this way) and still don't work (message The gateway did not receive a timely response from the upstream server or application)

But no matter, I dont need that :)

EDIT : backup done, it seems it was too long (I checked first time "ALL")
I did a system NAS backup but I dont checked "share access" (and checked all the other cases) and works perfectly.