Symptoms
You experience a sign-in loop where, after inputting your eRaider credentials and attempting to sign in using a mobile device, you are taken back to the sign-in screen again.
Cause
The eRaider system was not able to authenticate your sign-in attempt based on the sign-in key and IP address returned for verification. This could be because your IP address changed.
Resolution
There is no known resolution at this time.
Workaround
Connect to TTUnet VPN.
OUTCOME
You should be able to access eRaider Account Manager on your mobile device.
If you still cannot sign in after connecting to VPN, keep the VPN connection active and try browsing to a site other than eRaider Account Manager that uses eRaider authentication (e.g., https://raiderlink.ttu.edu). Sign in to that site, and then browse back to https://eraider.ttu.edu.
You can also try using a different Internet service provider (ISP).