Among the likeliest suspect for slow computer performance – after you’ve taken care of the obvious viruses, malware, bloated systems, insufficient memory, run a registry cleaner, etc. – may just be your peripheral equipment. Network connections are notorious for slowing down computer performance. This is because a computer that’s attached to the network is communicating with other computers (like servers) and may be waiting for a response from another computer.

Check Your Network Card

Computers normally use a network card of some sort to connect to a computer. Whether the network card is built into the device, or is added after the fact, it remains a potential for a performance bottleneck. Sometimes, network cards can get “confused” and start to behave erratically.

These network adapters can “chatter” incessantly, creating all sorts of unnecessary network traffic that other devices have to listen to by virtue of the way Ethernet networks are designed. In other cases, your networked computer may be a victim of a “rogue” device, and is simply unable to get proper access to the network.

If you are working with a laptop computer, the network adapter or “air card” you use to connect to a 3G or cellular network may be causing performance problems. While the network may be capable of a faster download speed, your adapter card may be limiting the network’s performance. Laptops pose a unique challenge because in many cases, they’re underpowered to begin with. Combining a slower processor with a limited amount of RAM, a slower graphics processor and a slower network card, may produce an unhappy result when it comes to performance.

If you’re not using a cellular network card, but you’re connecting to a network with a wireless adapter, you may find that your computer has trouble shifting gears between one wireless network and another. The computer may spend time fruitlessly searching for network devices like DNS servers that it may have encountered in a previous session. If you’ve moved to a different wireless network, the most recently available DNS server won’t be around any longer. You may try disabling the wireless adapter when booting up and connecting once your computer is up and running.

If you’re working with a desktop computer that’s slow and attached to a network, disconnect the computer from the network. You may have to reboot or manually shut off the network adapter. If your performance problems improve or disappear altogether, you can begin to search for network related causes for your computer’s slow performance.

Photo Credit: Marius Perijoc, via Flickr

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