VminerHelp center / Error messages & fixes
Error messages & fixes
Error “invalid Pearl address” — how do I fix it?
The pool did not accept your wallet address / username. Check whether this pool needs a wallet address or a pool account username, and that the address has no extra spaces or missing characters.
Error “authorization failed” — how do I fix it?
The pool rejected the login. Check the wallet/username format and worker name.
Error “witness program has invalid padding” — how do I fix it?
The wallet address is invalid. Copy the full wallet address again.
Error “Quantus node rejected authentication token” — how do I fix it?
The QTC pool refused the login. Check that your QTC wallet address is correct.
Error “needs client >=” — how do I fix it?
The selected miner needs a newer Vminer. Update Vminer first (turn on automatic updates in System Settings, or download the latest version from the website).
Error “miner download failed” — how do I fix it?
The miner could not be downloaded (the download servers were unreachable). Check your network, turn off proxy / accelerator software, then press Start again.
Error “executable not found” — how do I fix it?
The mining core is missing. Download it again; if it keeps disappearing, check Windows Security quarantine. See System Settings → "Antivirus is deleting the miner": click "One-click allow Vminer" and follow the guide.
Error “miner hash mismatch” — how do I fix it?
The miner files are incomplete or were changed (most likely by antivirus). Open System Settings → "Antivirus is deleting the miner", click "One-click allow Vminer", then download the miner again.
Error “access is denied” — how do I fix it?
Windows Security or another security product blocked the mining core. Review quarantine and allow Vminer via System Settings → "Antivirus is deleting the miner".
Error “already running” — how do I fix it?
Another mining-core process is still running. Close the old process, then start again.
Error “Only one usage of each socket address” — how do I fix it?
The local service port is already in use, probably by another running Vminer. Close extra Vminer windows (including the tray icon) or restart the PC.
Error “forbidden by its access permissions” — how do I fix it?
The local port is reserved by Windows or blocked by security software. Restart the PC; if it persists, disable Hyper-V/WSL/emulators or the security suite's network shield. See System Settings → "Antivirus is deleting the miner": click "One-click allow Vminer" and follow the guide.
Error “certificate has expired or is not yet valid” — how do I fix it?
The secure connection to the server did not pass the check, usually because the PC date / time is wrong. Turn on automatic time sync in Windows, check the year is right, then retry.
Error “the uplink may be blocked or filtered” — how do I fix it?
Results aren't reaching the pool; the connection may be blocked. Check firewall/router or disable VPN/accelerator.
Error “attempted to an unreachable network” — how do I fix it?
The PC is offline or the network is unreachable. Check cable/Wi-Fi and router and confirm internet access.
Error “network name is no longer available” — how do I fix it?
The diskless/network drive disconnected. Check the cable or run Vminer from a local disk.
Error “driver version is insufficient for CUDA runtime version” — how do I fix it?
The NVIDIA driver is too old. Install the latest driver from nvidia.com and reboot.
Error “no kernel image is available for execution on the device” — how do I fix it?
This mining core does not support your GPU model. Choose another core or check whether the card is too old.
Error “unsupported display driver / cuda driver combination” — how do I fix it?
The GPU driver install is broken or mismatched. Reinstall the latest NVIDIA driver (clean install).
Error “couldn't communicate with the NVIDIA driver” — how do I fix it?
The NVIDIA driver isn't working. Restart the PC; if it persists, clean-reinstall the GPU driver with DDU.
Error “all CUDA-capable devices are busy or unavailable” — how do I fix it?
The GPU is held by another program. Close other miners or games and retry; reboot if needed.
Error “Unable to determine the device handle for GPU” — how do I fix it?
A GPU cannot be reached. Check risers, PCIe cables and power, then reboot.
Error “external power cables are not properly attached” — how do I fix it?
The GPU's power cables are not properly connected: power off and check them.
Error “Reboot the system to recover this GPU” — how do I fix it?
A GPU dropped off the bus. Restart the PC; if it keeps happening, lower/clear the overclock and check power and PCIe risers.
Error “an illegal memory access was encountered” — how do I fix it?
The GPU hit a compute error, usually from too much overclock. Lower the overclock (especially memory) and retry.
Error “far more than the relaxed kernel filter can explain” — how do I fix it?
The GPU keeps producing wrong results, almost always unstable overclock: lower or remove it.
Error “device requires a reset before it can be used again” — how do I fix it?
The GPU needs a reset: reboot the PC and lower the overclock.
Error “stopped responding and has successfully recovered” — how do I fix it?
The display driver crashed and recovered. Lower/clear the overclock; if it repeats, clean-reinstall the driver with DDU.
Error “the launch timed out and was terminated” — how do I fix it?
The GPU task timed out and was stopped by Windows. Lower the overclock and avoid gaming/video on this card meanwhile.
Error “uncorrectable ECC error encountered” — how do I fix it?
The GPU memory reported a hardware error. Lower memory OC; if it repeats, the card may be faulty.
Error “WattMan settings have been restored” — how do I fix it?
An AMD overclock crashed the system and was reset to default. Use a milder overclock.
Error “cudaMalloc” — how do I fix it?
The mining core could not allocate GPU memory (usually Windows virtual memory is too small). Increase the page file: System Properties → Advanced → Performance Settings → Advanced → Virtual memory → Change, uncheck automatic, set a custom size of at least the total VRAM of all GPUs + 4 GB (e.g. two 8 GB cards → 20480 MB), then restart the PC.
Error “error when allocating memory or building DAG” — how do I fix it?
This GPU failed to allocate memory and was disabled. Increase Windows virtual memory, lower memory OC, restart.
Error “Insufficient memory to continue the execution of the program” — how do I fix it?
Vminer ran out of memory and crashed. Enlarge virtual memory, close other large programs and reopen Vminer.
Error “Critical shutdown temperature reached” — how do I fix it?
GPU reached a critical temperature and mining was stopped. Check fans and cooling before restarting.
Error “temperature is above or equal limit” — how do I fix it?
GPU too hot; this card was paused/stopped. Improve cooling, clean dust, raise fan speed or lower power limit.
Error “An Application Control policy has blocked this file” — how do I fix it?
Windows Smart App Control blocked Vminer. Turn it off in Windows Security > App & browser control > Smart App Control, then reopen Vminer.
Error “Reinstalling the program may fix this problem” — how do I fix it?
A required file is missing. Install the Visual C++ 2015-2022 x64 Redistributable and check antivirus did not delete files. See System Settings → "Antivirus is deleting the miner": click "One-click allow Vminer" and follow the guide.
Error “required instruction sets are not supported by the current CPU” — how do I fix it?
This PC's CPU is too old to run this miner. Choose another miner.
Error “Unsupported Pearl certificate version” — how do I fix it?
The pool's job format is newer than this miner supports. Update the miner or change pool.