I buy a netgear R6250 for my home.
I have more than 10 devices connected by wifi, so it seem be good to this.
But, I have a problem with it:
I lost internet connection some times. I need to disconnect the wifi on my mac and reconnect to retrieve it. When I do a traceroute, I get a "could not resolve google.com hostname" like if the router have a poor dns.
The dns server configured now is the modem's dns used to provide internet.
What can be wrong in the router config which be cause this problem ?
Thanks.
Best Answer
I'll take a swing and try to formulate an answer for wifi connection problems in general, hoping this answer may help other people with similar questions/problems. Please feel free to edit/extend this answer as you see fit.
Introduction
The number of wifi access points is increasing (see this report, page 14 and 25). The migration from mobile (GSM/3G/3G) connectivity to wifi connectivity in urban area's originates from public demand and governments, TelCo's and cable providers are happy to fulfill those needs. With more people having access to wifi and more wifi access points appearing it becomes more and more difficult to maintain a good working wifi connection. We'll take a look at the things you can do to improve your wifi connectivity.
The scope of this answer is limited to connection loss. This explicitly excludes connection speed problems or problems connecting to a wifi network in general.
Causes of connection loss: wifi signal quality and strength
The quality and strength of your signal is dependend on:
The terms quality and strength can be explained using the analogy of speech. If two people talk to each other it is important that you hear enough volume (signal strength) and that there is not too much noise, cluttering the voice of the speaker (quality). Noise can be dealt with by removing the noise (talk inside a home instead of next to a drilling machine) or by increasing strength (talk louder).
How to measure wifi signal quality and strength
The quality of your signal if often displayed using bars or using the semicircles of the wifi logo.
Most wifi tools can display the strength of the signal and its quality (often in terms of a signal-to-noise ratio). Some tools that you can use to analyse your wifi signal are (in alphabetical order):
How to improve wifi signal quality and strength
Here are the things you can do. Please consider changing only one thing at a time and evaluate if that makes your situation better (keep the change) or worse (revert). That makes evaluating the result of your actions much easier.