This is an issue I’ve come across as well. I’d love to hear how you were able to fix this grumblemarc. Here is what is happening on my end:
I duplicated a site w/ TML installed and moved onto a dev server. Everything works fine on the live server, but not the dev server.
I’ve tried w/ the plugin installed and uninstalled, but still get the same redirect issue. I’ve uninstalled all plugins and attempted this as well. I’ve cleaned the database of any URL w/ the old link.
I am able to access /wp-login.php, but once I submit the correct login information I encounter the same “too many redirects…” issue. I can’t get to any page w/ /wp-admin.
I’m hoping there is something easy here I’m missing, but I haven’t come across it yet.