ReadyNAS Ultra 4 is slowing down my entire network LAN & WAN

IseWise wrote:

Ive owned a ReadyNAS Ultra 4+ for several years now, with little to no problems, however I'm now having a very strange issue. Every time my NAS is connected to the network, the entire network begins to crawl. And I do mean the entire network, both LAN and WAN. Page loads will slow down and even fail to load, accessing my mapped drives slows down, even wifi devices will slow down. I am positive it's the NAS causing the slow down because I can unplug the 2 cables and the network returns to optimal performance. My network: Motorola Surfboard SB6141 Netgear R7000 Trendnet TEG-S80g siwtch <--- NAS is connected to switch with 2 Cat5e cables. NAS is on the latest firmware, both network interfaces have static ip set inside frontview. I tried trading the Trendnet switch for a Linksys SE2500 and that didn't work. I have purchased at the time of this writing a bunch of cat6 cables from Monoprice.com to replace every cable I can to see if that will help performance. I have found a couple other threads that sound similar to the problem I'm experiencing but no answers or solutions: http://www.readynas.com/forum/viewtopic.php?f=21&t=76765 http://www.readynas.com/forum/viewtopic.php?f=21&t=56182 Please help me out.

I am having the same problem..I have an Ultra 6 plus that has been working flawlessly for the last few years. The other day I noticed that my internet connection was intermittently down with 50% packet loss. I tracked the problem to the NAS. I unplugged the network cables and everything returned to normal. I rebooted the NAS and the problem remained. I tried each network port with different internal and external IP addresses(different gateways I have external and internal networks) and got the same results each time(Severe packet loss across the whole network) If I put in an internal static and leave the gateway blank then the NAS works with no packet loss. I can access it internally but of course not from the internet.