My gal and I were on an extended trip and to cut down on luggage decided to share a laptop where we both logged on to TER.  

but since it is an offense that can result in being banned, a warning really should be posted more prominently.

Mr. Fisher please don't forget to clear cache, cookies and passwords after every session on TER when using a device that is not yours.  This is critical to your standing and access to your preferred hobby board.

Very smiling situation to me Mr F.
New to TER some 12 years ago and almost identical issue. Can’t recall if he got a temporary ban but I sure did....

Is Ter storing this data (mobile or web browser data)  

It keeps providers from logging in under their clients account right after a session and writing their own reviews among other things. One of those other things would be guys and gals alike creating a dozen different accounts from a single URL and/or device.

At least don't log into TER using her wireless.  TER is on the lookout for activity that would result from a stolen password I think.  Stay safe!

I wouldn't do that.  I also wear this.

Sure glad I have your email! 😚
XOXO  
TL

TER track IP addresses I think, and for good reason.

Did she visit the reviewer only board
What did she use your account for
Did she get a temp ban
I think her behavior is shady but I love Slim Shady

What if the provider you are seeing works at the same large company you do, or is a college student at the University you also attend, or work at, etc.  What I am getting at is this, what if she and you just happen to access the same wireless IP addresses regularly, even if you didn't know she was even working at the same biz or at the same college (think 10-15k people, in the institution in a big city)  I mean, its possible in the big cities like NY, LA, Chicago, Philly, Boston, etc.  How does TER handle people on the same wireless server, even if they don't know each other and have never met outside the hobby?

The soon to be unemployed ... thats who.  

Yep this happened to my long time client. I asked him to do a review and he had no idea how so I showed him. I made him an account and he only used my phone because he did not want his wife to see and work banned those type of sites. Low and behold they took down his account. He freaked out and asked y so i inquired. TER said cant share devices. I thought it was dumb since its 2 different accounts. But all well. My question is what are the alternatives besides buying another device that he keeps at my place? Im under a written  order to destroy any connection between us anyways which would include any reviews of course.

there's a difference on IP address (internet) and the IP address of the device.  

You can NEVER share devices or IP address. The only case is where you alert TER that you may be using same wifi (that I know of).

No, no, no!
I hope people realise that when they use public WiFi (eg hotel WiFi, work, college etc) that the sites they access can be seen? Never never use hotel WiFi - the opportunity to draw unwanted attention to yourself is way too high...

Sometime ago, a provider friend was showing me how TER works and whatnot. I logged out of her account, and created my account to start advertising.  

They banned him but not you? You created an account for him on your device!  You should have both been banned, at least temporarily.