I have been using this router for four months now, still with the same SIM card and the same spot on my desk. When I first started using it I was getting 20ms ping, 75.63Mbps down and 40.51Mb/s up however, now I am getting 17ms ping, 7.0-9.5Mbps down, and 41-43Mbps up. I do occasionally lose internet connection as well, but that happens maybe once every two hours. The signal strength hasn't changed as it is still sitting at 75% on the routers status page.

For my connection to the router, I am using a cat5e cable between the router and my laptop and have Wi-Fi disabled.

I also tried "Enabling IGMP Snooping in the Advanced tab under Network/LAN Settings"  from this forum post however I haven't noticed any performance changes.

Any additional suggestions would be greatly appreciated.