40% Packet loss

Here's my setup: I have a 5 static IPs on this connection. I have 4 servers and a router for the rest of my network. Connections go as follow:

Modem: {

  Router: {

    Switch to all of my desktop computers

  },

  Switch: {

    All of my servers

  }

}

I can start a ping on my static IP gateway and get about 40% packet loss. I tried running this ping from my workstation (through my router), from one of my servers (directly connected to the modem) and from my router (also connected directly to my modem). They all show the same behavior and they all start dropping packets at the same time.

Here's another interesting issue: whenever I try to connect to my modem's web interface (10.1.10.1), whenever I see packet loss, the modem's web interface also stops responding. I tried changing the cable between my modem and my router, same problem. I tried connecting my laptop directly to the modem and I still get the same problem.

I can ping anything within my local network and I have no problem. I can also ping my server's external IP addresses and have no problem either.

Now, I know that before I upgraded my internet connection, we had a 50mpbs connection with a Netgear modem. And when I logged in to the Netgear modem, the WAN address was a random IP address assigned from their DHCP. It was my understanding that any static IP routing was happening through a tunnel that was configured between the device and their network and everything was being tunneled through that IP, assigned by their DHCP server. Now, that Cisco modem is showing its WAN IP address to be my static IP's gateway. Maybe the modem has different capabilities, I don't know, but I never had any issue with the Netgear modem before.

Anyone else ever had an issue like that?From desktop - connected through router.