patrike - I'm see this error quite frequently.
The web interface tells me both the CPU and GPU miners are offline, however if I remote desktop into the device I see both are working fine and reporting hashrates?
for the GPU the web says Interface offline
On the remote miner the log shows:
09/03/2018 09:51:18.113 [026] [S]Current list of Managed Miners:
[ManagedMiner#5 - HP GPU Study]
[ManagedMiner#7 - HP CPU Study]
09/03/2018 09:51:18.113 [026] [S]Current list of Clocking Profile:
09/03/2018 09:51:18.113 [026] [S]Current list of Active Miners:
[5] IsAttached: True, PID: 6940, InstanceId: 1
[7] IsAttached: True, PID: 15948, InstanceId: 2
09/03/2018 09:51:18.113 [026] [S]Saving configuration to: C:\Users\Greg\AppData\Roaming\AwesomeMinerService\ServiceData.xml.tmp
09/03/2018 09:51:18.144 [026] [S]--> C:\Users\Greg\AppData\Roaming\AwesomeMinerService\ServiceData.xml
09/03/2018 09:51:18.144 [026] [I2][ManagedMiner#5 - HP GPU Study] TriggerControlStateChanged, ControlState: Executing
09/03/2018 09:51:18.144 [026] [I2][ManagedMiner#7 - HP CPU Study] TriggerControlStateChanged, ControlState: Executing
Whereas the console shows
GPU0 t=67C fan=53%
KC: 03/09/18-09:57:17 - SHARE FOUND - (GPU 0)
KC: Share accepted (125 ms)!
KC: 03/09/18-09:57:19 - New job from hub.miningpoolhub.com:17003 (FAILOVER 1)
ETH: 03/09/18-09:57:23 - New job from europe.ethash-hub.miningpoolhub.com:17020
ETH - Total Speed: 6.048 Mh/s, Total Shares: 1, Rejected: 0, Time: 00:22
ETH: GPU0 6.048 Mh/s
KC - Total Speed: 181.428 Mh/s, Total Shares: 64, Rejected: 23
KC: GPU0 181.428 Mh/s
KC: 03/09/18-09:57:27 - SHARE FOUND - (GPU 0)
KC: Share accepted (125 ms)!
ETH: 03/09/18-09:57:42 - New job from europe.ethash-hub.miningpoolhub.com:17020
ETH - Total Speed: 5.869 Mh/s, Total Shares: 1, Rejected: 0, Time: 00:23
ETH: GPU0 5.869 Mh/s
KC - Total Speed: 176.084 Mh/s, Total Shares: 65, Rejected: 23
KC: GPU0 176.084 Mh/s
GPU0 t=67C fan=53%