Quick answer
Sign in at the official Rex login page (auth.rexsoftware.com), not an old bookmark. If your password fails, use "reset your password". If you're stuck on a two-factor code, use your authenticator app — and if you've lost that device, your Rex admin can reset MFA. Still stuck? Clear your browser cache or try Incognito.
WHY IT HAPPENS
A wrong link, an old password, or a two-factor snag.
Rex is a cloud app, so "logging in" means loading the official sign-in page and passing three checks: the right email, the right password, and — if your agency uses it — a two-factor code. Most lockouts trace back to one of those: a stale bookmark pointing at the wrong URL, an expired or changed password, a lost authenticator device, or a browser holding onto old sign-in data. Once you know which one it is, the fix is usually a couple of minutes.
THE FIX
Work through these in order.
- Go to the official Rex login pageSign in at auth.rexsoftware.com rather than an old saved link. Bookmarks made years ago can point at a retired or region-specific address that no longer works. Type the official address fresh, or reach it from your usual Rex product (Rex CRM, Rex PM), then enter the email and password you normally use.
- Double-check the email and passwordConfirm you're using your work email exactly as it's set up in Rex, with no typos or stray spaces, and check Caps Lock is off. If you use a password manager, make sure it's filling the current password and not an old saved one.
- Reset your passwordIf the password is rejected, click "reset your password" / "Forgot password" on the login page and follow the emailed link to set a new one. Check your junk/spam folder if the reset email doesn't arrive within a few minutes. Choose a strong, unique password you're not using elsewhere.
- Handle the two-factor (MFA) codeIf your agency has multi-factor authentication on, Rex asks for a 6-digit code from your authenticator app (such as Google Authenticator or Microsoft Authenticator) at each sign-in. Open the app and enter the current code before it refreshes. If codes are rejected, check your phone's time is set to update automatically — a wrong clock breaks the codes.
- Lost your authenticator device?If you've changed phones or lost the device with your authenticator app, you won't be able to generate a code. Your Rex administrator (or Rex support) can reset MFA on your account so you can set it up again on your new device. There's no way around this yourself, by design — it's what keeps your data secure.
- Clear your browser cache or try IncognitoA browser holding onto old sign-in data can cause login loops. Clear cached files (Ctrl + Shift + Delete in Chrome), or open an Incognito window (Ctrl + Shift + N) and sign in there. If Incognito works, clearing your normal browser's cache and cookies for Rex will fix it.
- Check for a locked accountToo many wrong attempts, an offboarded user, or a lapsed licence can leave an account locked or disabled. If none of the above works, your Rex administrator can confirm your user is active, licensed and unlocked, and reinstate it if needed.
If several people can't sign in at once — or the login page itself won't load — it's more likely a Rex-side issue or a problem with your office network than any one person's password. Check whether colleagues are affected, and loop in your IT provider rather than resetting passwords one by one.
