So, for a number of months now, about 85% of my login attempts have failed, and resulted in this message.
I was having to open up 20+ instances of the UO client, and just paste in my password, and try to connect and hope it'd succeed. This would happen in both the CC and EC. I was also having problems connecting in other games (such as ESO, oftentimes losing connection to the lobby when changing areas that required a loading screen, Error 334). I tried just about everything to fix this. Making sure Universal Plug N Play was enabled on my router, enabling Port Triggering, updating firmware on router, running as Administrator, etc.
Finally found a fix for it (at least for me). It's as simple as enabling a VPN. By going through a VPN, i'm able to connect to UO and other online games 100% of the time now. Such a ridiculously easy fix for an incredibly frustrating problem that plagued me for months. Just thought i'd share this info in case anyone else is having the same problem.

I was having to open up 20+ instances of the UO client, and just paste in my password, and try to connect and hope it'd succeed. This would happen in both the CC and EC. I was also having problems connecting in other games (such as ESO, oftentimes losing connection to the lobby when changing areas that required a loading screen, Error 334). I tried just about everything to fix this. Making sure Universal Plug N Play was enabled on my router, enabling Port Triggering, updating firmware on router, running as Administrator, etc.
Finally found a fix for it (at least for me). It's as simple as enabling a VPN. By going through a VPN, i'm able to connect to UO and other online games 100% of the time now. Such a ridiculously easy fix for an incredibly frustrating problem that plagued me for months. Just thought i'd share this info in case anyone else is having the same problem.