Eric Geier
Contributing Writer
Eric Geier is a freelance tech writer. He’s also the founder of NoWiresSecurity, providing a cloud-based Wi-Fi security service; Wi-Fi Surveyors, providing RF site surveying; and On Spot Techs, providing general IT services.
5G hits the streets of New York
32-foot-tall, networked towers called Link5G are cropping up across New York City, providing 5G services plus free Wi-Fi, USB charging, and 911 calling.
5 DNS services to provide a layer of internet security
Use these DNS services—some free—to protect against malware and other unwanted content.
8 free, cheap, and hands-on ways to learn about network administration
Step-by-step instructions to walk you through network-administration projects that can hone skills in IP addressing, Wi-Fi monitoring, documenting asset configuration, setting up DNS, and more.
9 career-boosting Wi-Fi certifications
Networking and security pros can benefit from adding vendor-neutral or vendor-specific certifications to your resume
How to buy Wi-Fi 6 access points
With more unlicensed wireless spectrum and specifications for MU-MIMO and OFDMA, the Wi-Fi 6 standard promises faster, more reliable networks, but not all vendors meet all the specs.
10 limitations of MU-MIMO in Wi-Fi
It’s a big breakthrough in wireless connectivity, but don’t let MU-MIMO’s limitations catch you off guard. Here are 10 ways to get up to speed on MU-MIMO Wi-Fi.
How to scale a Wi-Fi network
Whether it’s pushing out Wi-Fi coverage 100 feet or deploying a network in a site that doesn’t have one, here are the steps to take to insure you wind up with a cost-effective result.
9 tips for speeding up your business Wi-Fi
Interference, too many SSIDs, pokey management traffic, and small channel widths can all slow Wi-Fi networks. Here's how to speed them up.
5 free network-vulnerability scanners
These 5 tools can help automate the detection and remediation of vulnerabilities, and they're available at no cost, and some are upgradeable to more fully featured platforms.
How to fix Wi-Fi interference
Addressing Wi-Fi interference can include better placement of access points, balancing traffic between the 2.4 GHz and 5 GHz bands, beamforming, and eliminating other sources of radio-frequency signals.
How-to improve Wi-Fi roaming
Wi-Fi handoffs can be made smoother with careful mapping of the network followed by fine-tuning transmit power and placement of access points.