After patching to 1.4.6 I now get the following issues.
1) Serious lag when switching weapons, selecting items from the store and guild vendors, or trying to access crates or harvest items. About 5 to 10 seconds of lag.
2) I frequently get teleported back about 10 meters, its like my client lost sync with the server.
3) I 'm getting more and more phasing issues, where I get phased back to a part of the quest that I have already completed. I already posted a video on this but here is a link to the video:
Phasing Issues Video (no sound in video)
In the video, the camps is full of enemy NPC's, but after the quest, the Dreugh, have killed them all, but in the video, you can see my character phasing between both portions of the quest. I even start a fight with a soldier, and the soldier phases out when I pass into the correct quest phase.
Note that I if you have a summoned pet following you around on land and it pops in and out of existence, you are also experiencing the same phasing issue. As I roam around, my pet occasionally pops in and out of existence, similar to the effect when you cross water.
I tried everything that I know to fix this issue:
1) Had Comcast (for the 5th time) check my lines; they can find nothing wrong.
2) Bypassed my router and connected directly to the internet and had the same issue.
3) I tried a previous fix that involved uninstalling the client, rebooting, and reinstalling the ESO client, but this didn't work this time.
4) I did several latency tests and my time is14ms (30 down load speed, 6 Upload speed)
5) I borrowed a packet analyzer and the real-time data (both connected directly to the Internet, and through my router) shows that I'm not losing or resenting packers to or from the ESO server. My router log validates the same data.
And finally, The phasing issue should have nothing to do with a bad network connection, I would think that that would be an ESO server issue.