Hi Dustrega!
Thx a lot for your reply.
First of all, let me add some precision about my NAS model. In fact, I bought my NAS in Japan, not in China. My firmware is the Japanese one since I downloaded it from the JP Buffalo website. The reason why I complain on the US forum is simple: I don't speak Japanese... I came to the US forum because people speak English and it is rather dynamic.
I'd like to take advantage of my situation to point out a problem: you don't have any international support website. Therefore, since your firmware versions are localized depending on region, how can someone who buys a product in Japan but doesn't speak any Japanese get any support? You can't go to the JP website since you don't understand a **bleep**, you can only go to other English spoken countries' website to get the support... :-( And for me, to be able to get the JP firmware on the JP website was really a hassle! Everything written in Japanese. Even once you had download the .exe for the firmware installation, the wizard isn't in English and you have unreadable strange characters instead of proper JP characters so you just pray that the update goes smoothly...
It would be really better if you had a common English (since it's the only international language) international support website where all the firmwares for all versions of NAS in the world would be available. Now it's too complicated... Asus, for example, has a global English support site for worldwide: http://support.asus.com/ . Or if not, the JP site should have an English version. But I know by experience that when there's an English version of a site of a non English spoken country, it's seldom up to date compare to the local language version of the website.
Are you able to tell me whether 1.32 is the latest firmware version for my NAS?
Regarding your suggestions, since the incident I haven't encountered again the issue, I will let it as it is. If the issue occurs again, I can have a try. I wanted, with my post, to let people aware of the problem and to know if there was another solution but apparently no.
I access my NAS usually by NetBIOS name but for my test, I used the IP address to be sure that the problem wasn't related with the NetBIOS name.
Best Regards.