Please see the following link for info on the possible reasons for your issue, thanks.
I know disconnections can be frustrating from first hand experience. Let's get this fixed for you. We need to know whether you've done the basic steps first before we consider diving into more in-depth technical troubleshooting.
Check out the links below to see if that helps keep you in the game. Disconnections can happen in games but we're not seeing a widespread amount of players getting disconnected from our servers in the last 48 hours, so this is definitely something that can be fixed through basic troubleshooting.
Basic Connection Troubleshooting
Can you run a UO Trace and attach the results here for us? We need to see how your connection is reaching our servers.
Thanks for sharing the UO Trace. Doesn't look bad at all.
Try logging into your router's admin panel and check to see if you have a firmware update. There might be an option to enable or disable IPv6 as well. Switching to IPv6 or going to IPv4 may help improve connectivity.
Some routers also have a "gaming mode" option where you can check a box to designate bandwidth to your game as a priority.