Port and logged off happens sometimes to me too, last weeks. Not often, and in my case it has nothing to do with Vivec, nor an other destination. It's always the starting location, Windhelm/Eastmarch, when it happens. And my guess is, it has something to do with a bad connection at this moment, for whatever reasons.
In the german forum i've read somthing about some (rare) instances, in which the Ping suddenly explodes, although Providers and users side seem fine. Don't know, i always missed keeping an eye at my ping when it happened.

It was probably either just a coincidence that it was on the same character both times, but if that character was porting from a different location than your other characters then perhaps that was a(n added) factor.

It happens to me at times, but not just at the Vivec City wayshrine. It usually seems to go hand-in-hand with a lengthy loading screen, then it's like the connection times out or something and you end up at the character selection screen.

Then it might have been a combination of long porting times in both Solitude and Vivec City due to how busy those two hub cities tend to be, but that's just a guess. All of my characters are parked in Vivec City, and simply trying to log in on each one can result in some very long loading screens.

Khajiit had this happen when he ported to a floating stone in the sky in Coldharbor for the Daedric Lenses quest. Quite odd.

SilverBride wrote: »

If it was because Vivec was busy then my other 4 characters would have had the same problem because I run them all through there one right after the other. My Sorcerer is always the last to do her writs and is the only one this happens to.

Well, then I have no idea what causes this problem.

Sorry I couldn't help but hope it can be resolved somehow.