Just as a router has firmware upgrades, the network adapter in your computer have driver updates. You can find driver updates at the adapter manufacturer’s website or at Windows Update web site.
If the signal strength doesn’t improve, you could try replacing your wireless router and network cards. You may have an old router which is based on the older 802.11b networking standard. 802.11g is the newer standard. 802.11g devices are several times faster that 802.11b devices. (802.11b devices operate an 11Mbps while 802.11g devices operate at 54 Mbps.)
802.11g devices are also backward compatible with 802.11b devices. In other words, if you buy a new 802.11g router, it will still work with the 802.11b network adapters in your computers. Still, if you upgrade your router to 802.11g, for best results you should consider upgrading network adapters in your computer to 802.11g as well.
If you decide to do so, consider buying extended-performance 802.11g devices which operate at twice the speed–108Mbps. But keep in mind that if you buy extended performance devices, you must buy all of them from a single manufacturer. Most manufacturers such as Netgear, Linksys, and D-Link make extended-performance 802.11g devices but they are not necessarily interoperable with devices from other manufacturers.
And if none of these solutions work, forget about wireless and go back to good old wired networking!
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