Should I worry about people grabbing my information when I browse the Web at public hot spots?

Yes, you should at least consider this possibility. Anyone can install packet-sniffing software that will enable him or her to eavesdrop on what you do at a public hot spot. These snoops can read your e-mails and see what Web sites you visit, but they will not have access to the files on your laptop, unless you have file sharing enabled. And they cannot see any messages or Web pages sent over the secure server connections typically used by banks and e-commerce sites.

If you use a VPN to access your corporate network, you can use it at hot spots to encrypt all transmissions and shield them from packet sniffers. If you don't have a corporate VPN but frequently use public hot spots, you might consider a consumer VPN service such as the PersonalVPN from Witopia ($39.99 per year, www.witopia.net) or BlowFish from HotSpotVPN ($10.88 to $13.88 per month, www.hotspotvpn.com). These employ powerful 128-bit encryption to protect your data as it is transmitted.

I cannot connect to my router. How do I Fix This Wi Fi Problem

This is a problem with an almost limitless range of causes and solutions. First, make sure your router is configured for Dynamic Host Configuration Protocol (DHCP). If it is, try disabling and re-enabling the DHCP function. If that doesn't work, disable wireless security and see if you get a connection; sometimes a mismatched Wired Equivalent Privacy (WEP) key can drop the IP address. You should also check for electrical interference from competing devices such as cordless phones, baby monitors, alarm systems, and microwave ovens. Disable all suspect devices, then recheck your Wi-Fi connection. If none of the Wi Fi Fixes I mentioned work, reboot the router and all computers on your network.

Improving Wi-Fi Why high transmit power will tend to increase your interference with other Wi-Fi users, making you a bad neighbor

Higher Power WI-FI

Will having higher power Wi-Fi help improve your range, no, since higher power only helps on transmit, not receive. Thus it's only likely to help if the other end of your connection is using higher power as well, which is often not the case. Also, unnecessarily high transmit power will tend to increase your interference with other Wi-Fi users, making you a bad neighbor. It's usually much better to just improve your antenna, which helps both transmit and receive.

Wi-Fi Speed Whay Is my Wi Fi Connection Slow Slow

The raw speed reported by your wireless network adapter is not necessarily a reliable indicator of actual raw speed. The reason is that transmit speed fluctuates according to the wireless error rate, and when the wireless link is idle, unrealistic speed may be reported (since no errors are occuring when the wireless link is idle).

Data can only flow on one wireless link in one direction at any one time, which means that the maximum data transfer rate will be well below half of the raw wireless network speed.

Increase transmit power
Won't help on receiving, so higher power may well be needed at both ends.
Takes a lot more power to make a substantial difference in range.
May increase interference to other users of the frequency band.
Improving antenna (helping sending & receiving) is usually more effective & neighborly.

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