Rather than expecting members of this forum to wade through another forum in search of your posts, it would have been far better to have posted a link to the thread.
Also keep in mind the ReadyNAS, while part of Netgear, is a totally separate product line. In fact, Netgear has another current line of NAS products, the Stora and a former line of NAS products that has been discontinued after the purchase of Infrant. This forum does not address those products either. We will discuss general problems with various routers, Netgear and others when used in connection with the NAS, but not detailed settings or configuration of the router itself. That is basically beyond the scope of this forum.
You are talking about two problems. One the "connection speed" and the other "reserved IP's". If you are attempting to use a fixed IP address, then set up a static IP address in Frontview on the Duo, but make sure that you get outside the normal range, but in the same subnet. For example my Netgear WNR2000 is using the subnet 192.168.1.xxx and starts with 001. My NVX's are set to 192.168.1.201 and 192.168.1.202 and my NV+ is set to 192.168.1.203. This is done in Frontview under the Network tab. Click on Network and then interfaces. Then at IP assignment you can use the assigned IP from the router or a static IP set on the NAS. If you have further problems doing this, then I suggest you open a post under the Installation and Upgrade
If you are having problems with file transfer speed between the Duo and network devices, then open a discussion related to that problem under the Hardware and Hardware Compatibility
topic area. If it is connection speed to the internet, then a discussion in the other forum is appropriate.
Remember - the NAS is not a backup plan.
Backup = Good, No Backup = Bad