My client gives an UNSTABLE_MACHINE error and is going to sleep for 24 hours! What should I do?

This occurs when 10 EUE’s occur. Rapidly EUE-ing machines are a sign that the client needs some donor intervention to fix it. Please check out the FAQ below as well as Folding Support Forum for details about how to fix a misconfigured client. This error typically results from a problem with drivers. Please see the instructions above for which drivers you should use for your hardware. Unfortunately, we cannot give more information from the client, since all the client knows is that it can’t run CUDA and there’s lots of reasons why (and there’s currently no way for the core to detect them).

If your client has worked before, try restarting your machine, as that has also shown to help. Restarting the client will reset the EUE counter.