I was once asked this question which I could not find an answer to.
This is the scenario.
The primary Domain Controller is at Head Office. Remote office is connected to primary DC via internet link provided by third party. All desktop PCs at remote office is set to wipe credential caching when they boot. Local account login is disabled. There is no BDC/RODC at remote office.
If the next morning internet link goes down (at remote office) before people had a chance to turn on their PCs, what are the possible solutions to let people login to their desktops