Usually, I connect to TER, click "My TER" (top left), get the login page, log in, and then go to the "More" dropdown (upper right, between MyFeedback and BuyVIP).  I then choose "My Board Posts" and click my most recent post to see if anybody replied.  
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I find that's the fastest, easiest way to get to the Boards that I follow and post to.  It USED to be that I could go to the bottom of that topic page and click the "Back to Forum" box to get to main page of that board with all of the topics listed in chronological order (based on most recent reply).  (I prefer "my" method to login, click Discussion Boards, click General dropdown, click the board of interest.)
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As of today, when I click "Back to Forum", I am bounced back to the login page with a red font announcement that my session has expired and I am no longer logged in.  Interestingly, my handle is still on the top right as IF I am logged in with that name.
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Is anybody else seeing weird behavior like that?

I was unable to log back in. I kept getting the message saying I had entered an incorrect username or password.  I assure you I had not. I emailed admin. Their response was not an answer to my problem and no help whatsoever. (I waited about 8 hours for a response.) I decided to try clicking "I forgot my password" and went from there. It worked but I was logged out again when I tried to move from the Photo board to the General board. This time I was able to log back in.  

Happened to me twice.
Reset password
Also barely in and get session expired

I clicked to get to the general discussion board from the drop down menu and was logged of by the site. The message said my session had expired. Sign in again to continue.

Happened to me, too.  Claimed i had entered the wrong password. I couldn't figure out how to contact the administrators. Seemed I had to be logged in to contact them, but of course I couldn't log in.

[email protected]  

Happens every time I click to get the General discussion board.

Clicked ‘forgot my password’ (which I hadn’t) got a new one and once I logged in I changed it back to what it was...

Me too.

I just tried to log in just a little while ago for the first time since yesterday, and kept getting the incorrect password message. I tried 4 times and I know I didn’t type it wrong. It’s the same password I have been using here since 2004. I cleared my history and cookies thinking maybe it was something on my end. Tried again and same thing. Used the “forgot password” link (even though I didn’t forget my password) and they instantly sent a new one to my email address. I looked in, checked the newbie board, then tried to change boards to here and it showed me logged out. However I wasn’t really logged out. I clicked something else in the top section then clicked on discussion boards again and I’m logged in. 🤷🏻‍♂️

yep this is happening to everyone ..  i just emailed them before i realized that .. so imagine they are on it !   and on a friday night !!!

Started yesterday afternoon for me. Getting “session expired” after first change of boards.... whether New Reviews, then to Discussion Boards or vice versa. But, after logging in as exactly before, things seem to work properly (I’ll pay closer attention now that others are having glitches). I just assumed bad internet connection. Thanks for bringing this up and to those that have written to Admin.

Still also having trouble logging in
Every time need to use forgot password and log in on new one  
PIA. Have tried both using the reset and switching back to old one to no avail.

Even if you don't log in and just click on General  discussion board to read it goes to the log in and tells you your session has expired.

You think we'll here any news from TER about it.