I was previously on 1.32A and my internet connection would seemed to drop out after every couple of days.  I never had to reboot it because it always came back on.  I have version A4.  Also, my wireless printer always had to be reset.
However about 3 weeks ago I updated to version 1.34NA
Firmware   1.34NA   5/20/2010
Fixed: Bsecure Issue.
Firmware   1.33NA   1/28/2010
Fixed: Correct HNAP issue.
Fixed: DNS relay issue ( WAN Slowdown )
Added: Advanced DNS descriptions
I have been up for 3 weeks constantly after updating the firmware, never had a dropped connection, and I have had zero issues with my wireless printer.  I can only assume that the above updates fixed the router.  
