Hello guys,

I'm a Beginner in Bitcoin Mining and have Connection Problems to any Mining Pools that exists actually.
First I've tried it on my Raspberry Pi 3 Model b with 3 Mining Tools (cpu-miner, cpuminer-multi and others...). First it always said (booooo) when accepting blocks.. I've solved this problem by adding the algo=sha256d. Now my actual Problem is: It seems to be like I successfully connect to Mining Pools (suprnova, slush pool and f2pool for example) ... but the Dashboards don't refresh. The Dashboards don't show any active workers and the Hash Score Rates are always 0.

Now I've tried it at Ubuntu for Windows with the cgminer .... the same result but evan more strange. The stratum worker always ask for restarts .. I can't see any activities and the Dashboards (Mining Pools) don't change.


Here is what I see now for example slushpool:

Tried with commandline cgminer -o stratum+tcp://eu.stratum.slushpool.com:3333 -u Markiza91 -p Hereismypassword

 cgminer version 4.9.2 - Started: [2021-02-16 06:32:44]
--------------------------------------------------------------------------------
 (5s):0.000 (1m):0.000 (5m):0.000 (15m):0.000 (avg):0.000h/s
 A:0  R:0  HW:0  WU:0.0/m
 Connected to eu.stratum.slushpool.com diff 512 with stratum as user Markiza91
 Block: 567d8c74...  Diff:21.4T  Started: [06:45:15]  Best share: 0
--------------------------------------------------------------------------------
 [ U]SB management [ P]ool management [ S]ettings [ D]isplay options [ Q]uit
--------------------------------------------------------------------------------
 [2021-02-16 06:32:43] Started cgminer 4.9.2
 [2021-02-16 06:32:43] Loaded configuration file /home/angel/.cgminer/cgminer.conf
 [2021-02-16 06:32:43] Error in configuration file, partially loaded.
 [2021-02-16 06:32:43] Start cgminer with -T to see what failed to load.
 [2021-02-16 06:32:43] No devices detected!
 [2021-02-16 06:32:43] Waiting for USB hotplug devices or press q to quit
 [2021-02-16 06:32:43] Probing for an alive pool
 [2021-02-16 06:32:44] Pool 1 difficulty changed to 8192
 [2021-02-16 06:32:44] Switching to pool 1 stratum+tcp://eu.stratum.slushpool.com:3333 - first alive pool
 [2021-02-16 06:32:44] Network diff set to 21.4T
 [2021-02-16 06:32:45] Pool 0 difficulty changed to 8192
 [2021-02-16 06:32:45] Pool 0 stratum+tcp://eu.stratum.slushpool.com:3333 alive, testing stability
 [2021-02-16 06:32:45] Switching to pool 0 stratum+tcp://eu.stratum.slushpool.com:3333
 [2021-02-16 06:32:49] API running in IP access mode on port 4028 (12)
 [2021-02-16 06:33:42] Pool 0 difficulty changed to 1638
 [2021-02-16 06:33:42] Stratum from pool 0 requested work restart
 [2021-02-16 06:34:12] Pool 0 difficulty changed to 512
 [2021-02-16 06:34:12] Stratum from pool 0 requested work restart
 [2021-02-16 06:37:46] Stratum from pool 0 detected new block
 [2021-02-16 06:45:15] Stratum from pool 0 detected new block


By Canceling comes this summery:

Summary of runtime statistics:

 [2021-02-16 07:17:42] Started at [2021-02-16 07:10:07]
 [2021-02-16 07:17:42] Runtime: 0 hrs : 7 mins : 34 secs
 [2021-02-16 07:17:42] Average hashrate: 0.0 Mhash/s
 [2021-02-16 07:17:42] Solved blocks: 0
 [2021-02-16 07:17:42] Best share difficulty: 0
 [2021-02-16 07:17:42] Share submissions: 0
 [2021-02-16 07:17:42] Accepted shares: 0
 [2021-02-16 07:17:42] Rejected shares: 0
 [2021-02-16 07:17:42] Accepted difficulty shares: 0
 [2021-02-16 07:17:42] Rejected difficulty shares: 0
 [2021-02-16 07:17:42] Hardware errors: 0
 [2021-02-16 07:17:42] Utility (accepted shares / min): 0.00/min
 [2021-02-16 07:17:42] Work Utility (diff1 shares solved / min): 0.00/min

 [2021-02-16 07:17:42] Stale submissions discarded due to new blocks: 0
 [2021-02-16 07:17:42] Unable to get work from server occasions: 0
 [2021-02-16 07:17:42] Work items generated locally: 251
 [2021-02-16 07:17:42] Submitting work remotely delay occasions: 0
 [2021-02-16 07:17:42] New blocks detected on network: 2

 [2021-02-16 07:17:42] Pool: stratum+tcp://eu.stratum.slushpool.com:3333
 [2021-02-16 07:17:42]  Share submissions: 0
 [2021-02-16 07:17:42]  Accepted shares: 0
 [2021-02-16 07:17:42]  Rejected shares: 0
 [2021-02-16 07:17:42]  Accepted difficulty shares: 0
 [2021-02-16 07:17:42]  Rejected difficulty shares: 0
 [2021-02-16 07:17:42]  Items worked on: 2
 [2021-02-16 07:17:42]  Stale submissions discarded due to new blocks: 0
 [2021-02-16 07:17:42]  Unable to get work from server occasions: 0
 [2021-02-16 07:17:42]  Submitting work remotely delay occasions: 0

 [2021-02-16 07:17:42] Pool: stratum+tcp://eu.stratum.slushpool.com:3333
 [2021-02-16 07:17:42]  Share submissions: 0
 [2021-02-16 07:17:42]  Accepted shares: 0
 [2021-02-16 07:17:42]  Rejected shares: 0
 [2021-02-16 07:17:42]  Accepted difficulty shares: 0
 [2021-02-16 07:17:42]  Rejected difficulty shares: 0
 [2021-02-16 07:17:42]  Items worked on: 0
 [2021-02-16 07:17:42]  Stale submissions discarded due to new blocks: 0
 [2021-02-16 07:17:42]  Unable to get work from server occasions: 0
 [2021-02-16 07:17:42]  Submitting work remotely delay occasions: 0

 [2021-02-16 07:17:42] Summary of per device statistics:

 [2021-02-16 07:17:42]

Here is what I see now for example f2pool:

config:

{
"pools" : [
        {
                "url" : "stratum+tcp://btc-eu.f2pool.com:3333",
                "user" : "markiza91.001",
                "pass" : "Hereismypassword"
        }
],


"api-port" : "4028",
"failover-only" : true,
"log" : "10"
}



 cgminer version 4.9.2 - Started: [2021-02-16 06:56:47]
--------------------------------------------------------------------------------
 (10s):0.000 (1m):0.000 (5m):0.000 (15m):0.000 (avg):0.000h/s
 A:0  R:0  HW:0  WU:0.0/m
 Connected to btc-eu.f2pool.com diff 65.5K with stratum as user markiza91.001
 Block: 567d8c74...  Diff:21.4T  Started: [06:56:46]  Best share: 0
--------------------------------------------------------------------------------
 [ U]SB management [ P]ool management [ S]ettings [ D]isplay options [ Q]uit
--------------------------------------------------------------------------------
 [2021-02-16 06:56:45] Started cgminer 4.9.2
 [2021-02-16 06:56:45] Loaded configuration file config.json
 [2021-02-16 06:56:45] No devices detected!
 [2021-02-16 06:56:46] Waiting for USB hotplug devices or press q to quit
 [2021-02-16 06:56:46] Probing for an alive pool
 [2021-02-16 06:56:46] Pool 0 difficulty changed to 65536
 [2021-02-16 06:56:46] Network diff set to 21.4T
 [2021-02-16 06:58:08] Stratum from pool 0 requested work restart


By Canceling comes this summary:

Summary of runtime statistics:

 [2021-02-16 06:15:38] Started at [2021-02-16 06:12:53]
 [2021-02-16 06:15:38] Pool: stratum+tcp://btc-eu.f2pool.com:3333
 [2021-02-16 06:15:38] Runtime: 0 hrs : 2 mins : 44 secs
 [2021-02-16 06:15:38] Average hashrate: 0.0 Mhash/s
 [2021-02-16 06:15:38] Solved blocks: 0
 [2021-02-16 06:15:38] Best share difficulty: 0
 [2021-02-16 06:15:38] Share submissions: 0
 [2021-02-16 06:15:38] Accepted shares: 0
 [2021-02-16 06:15:38] Rejected shares: 0
 [2021-02-16 06:15:38] Accepted difficulty shares: 0
 [2021-02-16 06:15:38] Rejected difficulty shares: 0
 [2021-02-16 06:15:38] Hardware errors: 0
 [2021-02-16 06:15:38] Utility (accepted shares / min): 0.00/min
 [2021-02-16 06:15:38] Work Utility (diff1 shares solved / min): 0.00/min

 [2021-02-16 06:15:38] Stale submissions discarded due to new blocks: 0
 [2021-02-16 06:15:38] Unable to get work from server occasions: 0
 [2021-02-16 06:15:38] Work items generated locally: 95
 [2021-02-16 06:15:38] Submitting work remotely delay occasions: 0
 [2021-02-16 06:15:38] New blocks detected on network: 1

 [2021-02-16 06:15:38] Summary of per device statistics:

 [2021-02-16 06:15:38]

Could someone help me pls? What could be the issue on my raspberry pi and my ubuntu (Win) Variant? Why do the Dashboards don't refresh? On the raspberry pi it seems like the m-cpuminer is working locally but don't transfer the data to the mining pools.

Thank you in advance!