Is the whole file available?
A filename in a search result is not a promise that the entire file can be downloaded now. Inspect the available parts and the known sources. If no reachable peer supplies the missing sections, changing a speed limit will not produce them.
Rare files may require a longer connected period before a useful source appears. Keep your unfinished files intact and avoid repeatedly cancelling and re-adding the same transfer, which can discard useful progress.
Waiting is part of the queue system
A peer has limited upload capacity and may serve other people before you. Being connected to the network does not give every transfer an immediate upload slot. Reconnecting to different servers is not a reliable way to bypass a remote queue.
Compare several legitimate, available transfers. If some progress and one waits, that points towards the particular file or its sources rather than a total failure of your connection.
Leave upload headroom
Setting upload at the absolute capacity of your connection can make ordinary browsing and connection control struggle. Start with a measured idea of your usable upstream capacity and leave room for other traffic. Adjust one limit, observe the result, and keep a record.
Remember that Internet connection speeds and application transfer rates may use different units. Do not copy an old fixed kilobytes-per-second recommendation written for someone else's broadband line.
Understand credits accurately
Credits concern transfers between particular clients. They can improve your position with a peer you have uploaded to, but they are not a worldwide balance that guarantees speed with every source. Sharing a huge folder does not automatically buy priority from everyone.
Share deliberately and only material you are entitled to distribute. Review the selected directories so that private files do not become available by mistake.
Check reachability when many transfers struggle
If incoming traffic cannot reach you, you may have fewer useful connection options. Read the client status and follow the Low ID guide rather than disabling your firewall.
Also check the simple local constraints: enough disk space, a writable temporary directory, a stable network connection and no paused transfer state. An overworked router may react badly to extremely aggressive connection limits.
A sensible order of changes
- Confirm that the client is connected to the intended network.
- Inspect file completeness and source availability.
- Allow time for queues to progress.
- Check upload congestion and local disk conditions.
- Investigate Low ID or firewalled status if present.
There is no universal setting that makes every file fast. A useful configuration is one you can explain and reproduce, not the longest list of changed preferences.