Snapshot downloader: speed drops to 0

[yperbasis]

System information

Erigon version: 2.53.0-dev-e8c0ce33

OS & Version: Ubuntu 23.10

Commit hash: e8c0ce33ebd7f750ad8d98c0aa0f65d111dee807

Erigon Command (with flags/config):

nohup ../build/bin/erigon --chain mumbai --datadir /mnt/giant/erigon/mumbai --bor.heimdall='https://heimdall-api-testnet.polygon.technology' >>out_mumbai.log 2>&1 &

Consensus Layer: none

Consensus Layer Command (with flags/config): N/A

Chain/Network: Mumbai

Expected behaviour

More or less consistent download speed of almost 16MB/s

Actual behaviour

Download speed often drops down to 0 and stays at 0 for hours. Restarting helps only for a few minutes. Then the speed drops down to 0 again.

out_mumbai.log

Steps to reproduce the behaviour

Try syncing Mumbai from scratch