data stream not recognized

[ggril]

i am doing an experiment with BCIs and mobile EEG. these two are connected via LSL stream - mobile eeg is streamed on one computer via openBCI and the interface is on another computer. when i turn on the labrecorder on both computers i see that the computer with interface (receiver) recognizes the openbci_data LSL stream but when I write the code to receive data it says no stream is found. Any ideas on what the issues might be? some example code is pasted below

ex1

[def main():
# first resolve an EEG stream on the lab network
print("looking for an EEG stream...")
streams = resolve_stream('type', 'eeg')

# create a new inlet to read from the stream
inlet = StreamInlet(streams[0])

while True:
    # get a new sample (you can also omit the timestamp part if you're not
    # interested in it)
    sample, timestamp = inlet.pull_sample()
    print(timestamp, sample)

if name == 'main':
main()

ex 2

import pylsl

def receive_eeg_stream(stream_name="openbci_data"):
    try:
        # Resolve the stream by name
        print("Resolving LSL stream...")
        streams = pylsl.resolve_byprop("name", f"*{stream_name}*", timeout=5.0)

        if not streams:
            print(f"LSL stream '{stream_name}' not found. Make sure the stream is running.")
            return

        # Open an inlet to receive data
        print("Opening an LSL inlet...")
        inlet = pylsl.StreamInlet(streams[0])

        print(f"Receiving data from LSL stream '{stream_name}'...")

        while True:
            # Receive data sample
            sample, timestamp = inlet.pull_sample()

            # Access EEG data channels 
            eeg_data = sample[:16]

            # Print or process the EEG data 
            print(f"Timestamp: {timestamp}, EEG Data: {eeg_data}")

    except pylsl.LSLTimeoutError:
        print("LSL TimeoutError: Unable to find the stream. Make sure the stream is running.")
    except KeyboardInterrupt:
        print("Experiment interrupted. Closing LSL inlet.")
    except Exception as e:
        print(f"An error occurred: {e}")

if __name__ == "__main__":
    receive_eeg_stream()