i have a Wrvs4400n gigbit wireless router. the firmware version is 1.0016. i try to upgrade to 1.1.13 but its not accepting the up grade.
Also ip signature version is 1.25.
The first thing I would check is the hardware version of your router. There are 3 hardware versions for this router: v1, v1.1, v2. (The hardware version can be found on the label on bottom of the router.)
For version 2, there are no firmware updates available, as it already has the newest firmware version loaded.
For versions 1, and 1.1, their are two firmware updates listed on the website. (v1.1.03, and v1.1.13) If you have v1 or v1.1 of the hardware, and are having problems upgrading, I would suggest trying to upgrade to v1.1.03 first, then trying v1.1.13 after you have upgraded to the previous version.