If you are here because your expensive router began disconnecting your internet connections and 
You’ve traced the problem to your router and 
Your hardware revision is A1 and 
You’ve upgraded the firmware:
Your router is a brick requiring a hard reboot every two days.
The work around is to disable the machine’s DNS server requiring you to enable an external DNS server, which is basically disabling the primary function of a router.
After you have resolved that your only choice is to buy another network appliance from a reliable source, you can send your opinion, or your brick, to:
A. P. Chen and
Tracy Wang 
4F, No. 289, Sinhu 3rd Rd
Neihu District, Taipei, Taiwan
 
Tel 886-2-6600 0123  
Fax 886-2-6600 1188  
Web/E-Mail http://www.dlinktw.com.tw
This is way more than I should have to know for my $150 purchase.
Thank you, for your forum.