tdameritrade login problem
Firefox 107.0, Win.10
So, for years I have been logging in to TD at https://www.tdameritrade.com/
Now, when I log in, it jumps to the logout screen - https://invest.ameritrade.com/grid/p/login?logout=L&dboxId=grdLogout
On that screen, I enter my username and pw again and go in as usual and do my thing.
I tried updating my firefox (to 107.0) and no help. I tried TD help and they asked me to clear some history things - clearing cache, cookies, off line web data, site settings. I went into history and deleted every entry that had anything to do with TD. No help.
My other computer, Win 8, Firefox about the same (maybe 106.xx) works fine on the main login screen https://www.tdameritrade.com/, so it isn't a problem w/ TD.
I have had this problem either on this TD site or some other site before and someone guided me to the fix, but I cannot seem to find it in my stash of info.
Please help. As I recall, the fix is not that difficult (and I sure wish I could remember the fix).