Learn how to connect a MicroBT WhatsMiner to PECPool, find the miner’s IP address, configure three PECPool stratum servers, create a unique worker name, verify accepted shares, and troubleshoot common connection problems.

MicroBT WhatsMiner devices can connect directly to PECPool through their built-in web management interface or the official WhatsMinerTool application.

After entering the PECPool stratum addresses and your account and worker information, the miner will connect to the pool and begin submitting Bitcoin mining shares.

This guide applies to Bitcoin SHA-256 WhatsMiner models. The exact menu names and interface layout may vary depending on the miner model and installed firmware.

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What You Need Before Starting

Before configuring your WhatsMiner, make sure you have:

• A Bitcoin SHA-256 WhatsMiner
• A compatible power supply and electrical connection
• A wired Ethernet connection
• A router or network switch
• A Windows computer connected to the same local network
• Access to the miner’s management interface
• A PECPool account
• Your PECPool mining account name
• The recommended PECPool stratum addresses
• The latest official WhatsMinerTool when required

WhatsMinerTool is MicroBT’s official management application for discovering miners, viewing operating data, configuring IP addresses, changing mining pools, managing firmware, and performing maintenance operations.

Before turning on the miner, verify that:

• The power source is suitable for the miner.
• All power connections are secure.
• The Ethernet cable is properly connected.
• The air intake and exhaust are not blocked.
• The miner has sufficient ventilation.
• The environment is within the operating requirements of the model.
• Hydro-cooling models are connected to a suitable cooling system.
• Immersion models are installed in a compatible immersion system.

Do not operate the miner with incorrect voltage, loose power connections, insufficient cooling, or blocked airflow.

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Step 1: Find Your PECPool Mining Account

Sign in to one of the official PECPool control panel addresses:

• https://cp.pecpool.com
• https://cp.pecpool.cc

Open the Accounts section and locate the mining account you want to use.

Your mining account name will be entered in the WhatsMiner’s worker configuration.

The mining account name is not the same as:

• Your email address
• Your Bitcoin wallet address
• Your PECPool login password
• The WhatsMiner administrator username
• The miner’s serial number
• The miner’s local IP address

Copy the account name exactly as displayed in the panel.

If your PECPool user has multiple mining accounts, verify that you have selected the correct one before configuring the device.

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Step 2: Create a Unique Worker Name

A worker name identifies an individual miner under your PECPool mining account.

Use the following format:

AccountName.WorkerName

Example:

myaccount.whatsminer01

For multiple WhatsMiner devices, assign a different name to every miner:

• myaccount.whatsminer01
• myaccount.whatsminer02
• myaccount.whatsminer03

You may also create worker names based on physical location:

• myaccount.rack01m01
• myaccount.room2m05
• myaccount.siteb03

Use a short and recognizable name without spaces or unnecessary special characters.

A unique worker name makes it easier to monitor:

• Current hashrate
• One-hour and twenty-four-hour hashrate
• Online or offline status
• Last submitted share
• Rejected or stale shares
• Performance differences
• Device-specific interruptions

The worker is normally created automatically in PECPool after the miner begins submitting valid shares. It does not usually need to be created manually before connecting the miner.

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Step 3: Connect the WhatsMiner to the Network

Connect the miner’s Ethernet port to your router or network switch.

Then connect the required power cables and turn on the miner.

Wait for the miner’s control system to complete its startup process. This may take several minutes depending on the model, firmware, and cooling type.

The Windows computer used for configuration should be connected to the same local network as the WhatsMiner.

Example network:

• Router: 192.168.1.1
• Computer: 192.168.1.20
• WhatsMiner: 192.168.1.100

Your actual local IP addresses may be different.

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Method 1: Configure WhatsMiner Through Its Web Interface

This method is suitable for configuring one miner directly.

Step 4: Find the WhatsMiner IP Address

You need the miner’s local IP address to open its management interface.

The recommended method is using the official WhatsMinerTool.

Find the IP with WhatsMinerTool

1. Download WhatsMinerTool from the official WhatsMiner website.
2. Extract and open the application on a Windows computer.
3. Make sure the computer and miner are connected to the same network.
4. Open IP Monitor in WhatsMinerTool.
5. Click Start.
6. Press and hold the IP Found button on the WhatsMiner control board for a few seconds.
7. Wait until the miner’s indicator lights flash.
8. The miner should broadcast its IP and MAC address to WhatsMinerTool.
9. Record the detected IP address.

MicroBT’s current instructions specify using IP Monitor, clicking Start, and holding the miner’s IP Found button until the LEDs flash and the address is detected.

Alternative Method: Scan the Local Network

WhatsMinerTool can also scan a specified local IP range.

To define the scanning range:

1. Open Miner IP.
2. Enter the network’s starting IP.
3. Enter the ending IP.
4. Add the range.
5. Make sure the required range is selected.
6. Start the scan.

You may also check the DHCP client list in your router or network management system.

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Step 5: Open the WhatsMiner Management Interface

Enter the detected IP address in a web browser.

Example:

http://192.168.1.100

The WhatsMiner login page should appear.

Enter the administrator username and password configured for the device.

Credentials may vary depending on:

• Miner model
• Firmware version
• Previous owner
• Hosting provider
• Supplier configuration
• Farm administrator
• Custom access settings

After signing in, change any factory-default password when possible.

Do not expose the WhatsMiner management interface directly to the public internet.

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Step 6: Open the Pool Configuration

After signing in, open the miner’s pool or mining configuration page.

Depending on the firmware, this section may appear under menus such as:

• Configuration
• CGMiner Configuration
• Mining
• Pool
• Miner Configuration
• Pool Configuration

Look for fields containing:

• Pool address or Pool URL
• Worker
• Password

Most WhatsMiner interfaces allow multiple mining pools to be entered in priority order.

Configure three official PECPool servers whenever the firmware supports three pool entries. This provides failover if the primary server becomes temporarily unreachable. PECPool also recommends entering all three stratum URLs in the order suitable for the miner’s location and network.

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Step 7: Select PECPool Stratum Servers

PECPool provides regional Bitcoin stratum servers.

Use the closest and most stable server as your primary connection, followed by two alternative servers.

PECPool Bitcoin Stratum Servers

The complete stratum format is:

stratum+tcp://server-address:port

Example:

stratum+tcp://btc-eu.pecpool.com:3333

The most geographically nearby server is not always the most stable. Select the primary address based on actual connectivity, latency, packet loss, and local network conditions.

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Step 8: Enter the PECPool Configuration

Enter a different official PECPool server in each pool field.

Use the same mining account and worker name for every pool entry.

Example Configuration for Europe

Pool 1 — Primary

Pool URL

stratum+tcp://btc-eu.pecpool.com:3333

Worker

myaccount.whatsminer01

Password

x

Pool 2 — Backup

Pool URL

stratum+tcp://btc.pecpool.com:443

Worker

myaccount.whatsminer01

Password

x

Pool 3 — Backup

Pool URL

stratum+tcp://btc-us.pecpool.com:25

Worker

myaccount.whatsminer01

Password

x

Example Configuration for Iran

Pool 1 — Primary

Pool URL

stratum+tcp://btc.pecpool.cc:8443

Worker

myaccount.whatsminer01

Password

x

Pool 2 — Backup

Pool URL

stratum+tcp://btc-as.pecpool.com:443

Worker

myaccount.whatsminer01

Password

x

Pool 3 — Backup

Pool URL

stratum+tcp://btc-eu.pecpool.com:3333

Worker

myaccount.whatsminer01

Password

x

The pool password is not your PECPool account password.

Never enter any of the following in the pool password field:

• PECPool login password
• Email password
• Two-Factor Authentication code
• Bitcoin wallet private key
• Wallet seed phrase
• API Secret

When no special pool password is required, use x as the placeholder.

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Step 9: Save and Apply the Settings

Review all pool entries carefully.

Confirm that:

• Each stratum address is complete.
• The server name is correct.
• The port number is correct.
• The mining account name is correct.
• The worker name is included.
• The worker name is unique.
• No spaces were added before or after the values.
• A Bitcoin wallet address was not entered in the Worker field.
• The pool password is not your PECPool password.

Click the applicable button, which may be named:

• Save
• Apply
• Save & Apply
• Submit

Allow the miner enough time to apply the new configuration and restart its mining process.

Do not repeatedly disconnect its power while the settings are being saved.

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Step 10: Verify the WhatsMiner Status

Open the miner’s status, dashboard, or CGMiner page.

Depending on the firmware, this section may display:

• Pool connection status
• Real-time hashrate
• Average hashrate
• Accepted shares
• Rejected shares
• Miner uptime
• Power information
• Temperature
• Fan speed
• Hashboard status
• Error or event codes

Confirm that:

• The miner is shown as running.
• One PECPool server is active.
• Hashrate is increasing.
• Accepted shares begin to appear.
• The miner is not repeatedly restarting.
• All expected hashboards are detected.
• Temperature and cooling information are normal.
• No critical error codes are displayed.

In WhatsMinerTool, THS RT represents real-time hashrate, while THS Avg represents average hashrate since the miner was powered on.

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Step 11: Verify the Worker in PECPool

Return to the PECPool control panel.

Open Monitor and select the mining account used in the WhatsMiner configuration.

After the miner connects and begins submitting valid shares, the worker should appear in the panel.

Check:

• Worker name
• Online status
• Current hashrate
• One-hour hashrate
• Twenty-four-hour hashrate
• Last share time
• Hashrate chart
• Accepted shares
• Rejected or stale shares

A newly connected or restarted worker may require approximately 10 to 20 minutes to appear or change to Online status.

The hashrate shown in PECPool may initially differ from the real-time value shown by WhatsMiner.

This is normal because the miner reports a local hardware measurement, while the pool estimates hashrate from valid shares received over time.

Allow the pool average enough time to stabilize before evaluating the device.

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Method 2: Configure the Pool with WhatsMinerTool

WhatsMinerTool can configure one or multiple miners from a Windows computer.

This method is particularly useful for:

• Mining farms
• Multiple WhatsMiner devices
• Batch pool changes
• Creating worker suffixes automatically
• Managing several IP addresses
• Replacing pool settings without opening each miner separately

MicroBT’s current WhatsMinerTool provides pool-address, worker, suffix, password, and coin-type fields and can apply settings to one or more selected miners.

Step 1: Scan the Miners

1. Open WhatsMinerTool.
2. Configure the required IP range under Miner IP.
3. Scan the local network.
4. Wait for the miners to appear.
5. Confirm that the correct model, IP, MAC address, and status are displayed.

Step 2: Configure Worker Suffix Settings

Open Settings and review the worker suffix options.

WhatsMinerTool supports configurable IP suffix counts. This can help generate a different worker name for each device based on its IP address.

For example, with a worker base of:

myaccount.whatsminer

WhatsMinerTool may create names such as:

• myaccount.whatsminer101
• myaccount.whatsminer102
• myaccount.whatsminer103

Review the generated names before applying the configuration to many miners.

Do not allow two unrelated devices to receive the same worker name.

Step 3: Open Pools

Click Pools and enter:

• Pool address
• Worker name
• Worker suffix format
• Password
• Coin type, when requested

Configure the PECPool primary and backup addresses.

Step 4: Select the Miner

Select the IP address of the WhatsMiner you want to configure.

For a batch operation, select all intended miners carefully.

Do not include devices that should remain connected to another account or pool.

Step 5: Apply the Configuration

Click the applicable action button in WhatsMinerTool.

In current official MicroBT instructions, the pool configuration action may be labeled Start Upgrade, even though the operation is applying pool and worker settings rather than installing firmware. Confirm the dialog and wait for the process to finish.

After the configuration is applied:

1. Rescan the miners.
2. Verify that they are running.
3. Check real-time and average hashrate.
4. Confirm accepted shares.
5. Check the generated worker names.
6. Verify each worker in PECPool.

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Primary and Backup Pool Behavior

The miner normally connects to the highest-priority available pool.

A typical configuration is:

1. Pool 1: Primary regional server
2. Pool 2: Global or nearby backup server
3. Pool 3: Alternative region or port

The backup pools may not show accepted shares while the primary server is operating normally.

This is expected.

Backup addresses are intended to reduce downtime if the active connection fails.

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Common WhatsMiner Connection Problems

WhatsMinerTool Cannot Find the Miner

Check that:

• The miner is turned on.
• Startup has completed.
• Ethernet is connected.
• The computer and miner are on the same network.
• The correct IP range is selected.
• Windows Firewall is not blocking WhatsMinerTool.
• The IP Monitor function is running.
• The IP Found button is being pressed correctly.
• The router has assigned an IP address.
• A different Ethernet cable and switch port have been tested.

If the device was previously configured with a static IP from another subnet, it may not appear in your current network range.

Do not perform a factory reset until you have reviewed the correct procedure for the exact miner model and recorded any important settings.

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The Miner Login Page Does Not Open

Possible causes include:

• Incorrect IP address
• Different network subnet
• Duplicate IP address
• Incorrect static IP configuration
• Local firewall restriction
• Control board problem
• Incomplete startup
• Browser compatibility issue

Try:

1. Ping the miner’s IP.
2. Verify the computer’s subnet.
3. Test another browser.
4. Test another computer.
5. Check the router’s client list.
6. Scan the network again.
7. Verify the gateway and subnet mask.

MicroBT notes that a control-board recovery or card-flashing procedure may be required in some cases where the web backend cannot be accessed, but only the recovery image intended for the exact model should be used.

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PECPool Server Does Not Connect

Check:

• Stratum URL
• Port number
• DNS resolution
• Internet connection
• Network firewall
• Router restrictions
• Worker format
• Miner system time
• Firmware condition

Try another official PECPool port or regional address.

For example, if port 3333 is restricted, test port 443 or another supported port for that region.

Never use unofficial pool addresses received through private messages.

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Worker Authentication Fails

Authentication problems are commonly caused by:

• Incorrect mining account
• Missing worker name
• Incorrect separator
• Spaces in the Worker field
• Wallet address entered instead of mining account
• Unsupported characters
• Incomplete account name
• Wrong PECPool account selected

Use:

AccountName.WorkerName

Example:

myaccount.whatsminer01

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The Miner Is Running but the Worker Is Offline

A miner may be powered on and hashing locally without successfully submitting valid shares to PECPool.

Check:

• Active pool address
• Accepted shares
• Mining account
• Worker name
• Internet connection
• Last share time
• Current error codes
• Hashboard status
• Miner restart history
• Temperature and cooling
• Pool connection logs

After correcting the problem, allow enough time for the PECPool status to update.

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Pool Hashrate Is Lower Than WhatsMiner Hashrate

Temporary differences are normal.

Possible reasons include:

• Recent startup
• Recent restart
• Short measurement period
• Natural share variance
• Network latency
• Packet loss
• Rejected shares
• Repeated disconnections
• Unstable performance mode
• Cooling problems
• Hashboard errors

Compare the one-hour and twenty-four-hour pool averages rather than relying only on a momentary reading.

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Rejected or Stale Shares Are High

Possible causes include:

• High latency
• Packet loss
• Unstable internet
• Distant stratum server
• Frequent pool switching
• Network filtering
• Unstable firmware
• Aggressive frequency settings
• Cooling problems
• Repeated miner restarts

Recommended actions:

1. Select a closer and more stable PECPool server.
2. Test another official port.
3. Check packet loss.
4. Inspect Ethernet cables and network switches.
5. Review the miner’s event and error codes.
6. Return performance settings to a stable level.
7. Confirm the cooling system is operating correctly.

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Hashrate Is Zero or Unstable

Check:

• Miner operating status
• Hashboard detection
• Power supply
• Temperature
• Cooling system
• Firmware
• Frequency settings
• Event codes
• Error codes
• Pool connection

A pool configuration problem normally affects connectivity or accepted shares. Missing hashboards, power faults, and cooling errors are usually device-level issues.

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Pool Settings Cannot Be Changed

Possible causes include:

• Insufficient WhatsMiner account permission
• Miner authentication failure
• Unsupported firmware
• Network interruption
• Tool and firmware compatibility
• Selected miner being offline
• API access restrictions

MicroBT documents multiple WhatsMiner account-permission levels, and lower permission levels may not be allowed to configure or switch mining pools.

Sign in with an authorized administrative account and verify firmware compatibility before retrying.

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PECPool Monitoring and API Control

Directly connecting a WhatsMiner to PECPool does not require installing PECPool Monitoring or enabling WhatsMiner API control.

The miner can submit shares and generate mining rewards using only the stratum configuration.

PECPool Monitoring is an additional system used for centralized visibility and supported remote-management functions.

For supported WhatsMiner remote controls, the miner must first be discovered and the appropriate API functionality enabled through WhatsMinerTool.

Never enable unnecessary remote access directly from the public internet.

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Recommended WhatsMiner Security Practices

After configuration:

• Change factory-default administrator credentials.
• Use a strong and unique miner password.
• Keep the miner web interface private.
• Do not forward its management ports directly to the internet.
• Use a secure VPN for remote administration.
• Download WhatsMinerTool and firmware only from official sources.
• Verify firmware compatibility with the exact miner model.
• Restrict access to the mining network.
• Protect PECPool credentials separately.
• Never enter your Bitcoin seed phrase into the miner.
• Never use your PECPool password as the pool password.
• Back up network and pool configuration details.
• Remove access for former staff or service providers.

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Final Configuration Checklist

Before considering the setup complete, confirm that:

• The WhatsMiner is connected by Ethernet.
• The miner has a valid local IP address.
• WhatsMinerTool can detect the device.
• The web management interface opens.
• The administrator password is secure.
• The correct PECPool mining account is used.
• The worker name is unique.
• Pool 1 contains the preferred regional server.
• Pool 2 and Pool 3 contain backup servers.
• All server addresses and ports are correct.
• The pool password is not your PECPool login password.
• The miner is running.
• Hashrate is displayed.
• All expected hashboards are detected.
• Accepted shares are increasing.
• Error codes have been reviewed.
• Temperature and cooling status are normal.
• The worker appears Online in PECPool.
• Rejected shares are not consistently high.

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Your WhatsMiner Is Now Connected

Once the WhatsMiner displays active mining, accepted shares begin increasing, and the worker appears Online in the PECPool panel, the device is successfully mining through PECPool.

Continue monitoring:

• Worker status
• Real-time and average hashrate
• Accepted and rejected shares
• Last share time
• Power status
• Temperature and cooling
• Hashboards
• Error codes
• Connection stability
• Earnings
• Alerts

For greater connection reliability, configure all three official PECPool stratum addresses and assign a unique worker name to every WhatsMiner.