NETSCOUT

Wi‑Fi Troubleshooting Made Simple

75% of end-users aren't satisfied with the Wi‑Fi performance at their jobs, and it's IT professionals like you who bear the brunt of the complaints.

Solve the most common problems Start Here

So what's the problem?

End-User can't connect to the Wi‑Fi

Being unable to connect can be frustrating for a user, but just a frustrating to troubleshoot as several issues may be at play. Signal levels or Signal to Noise ratios may be inadequate at the AP or the client to facilitate communication. Alternatively there could be configuration issues on the user devices or the AP (including the use of proper security credentials) or there could be a technology mismatch. At times the wireless isn't the root cause at all, but instead it's the wired connection. So where do you start?

The Wi‑Fi is Slow

There are several contributors to low/slow throughput, mostly in relation to high channel airtime utilization. One of the most common results is lack of available capacity (potentially there could also just be too many clients transmitting or even one user that is streaming HD video for example). Although solving capacity issues isn't as easy as it sounds as too many APs can result in problems such as co-channel interference (CCI) or adjacent channel interference (ACI). Another common problem could be non 802.11 transmissions or “Wi‑Fi Interferers” interfering with your 802.11 traffic.  Of course, if you have users connected at legacy rates that could also slow down the overall performance of your network.  So where do you start?

End-User keeps getting disconnected from the Wi‑Fi

Getting disconnected from the wireless often boils down to one of a handful of possible culprits. There can be issues with the signal strength / SNR at the AP or the client that prevents useful communication. non 802.11 transmissions or “Wi‑Fi Interferers” may be present in your environment that are causing clients to lose connection with the AP. At times the wireless isn't the root cause at all, but instead it's the wired connection. So where do you start?

Difficulty roaming on Wi‑Fi

Roaming behavior is really hard to predict and it is one of the most difficult parts of supporting a wireless environment (particularly with consumer grade devices in a BYOD setting). Not only do different devices roam differently, but sometimes a single Wi‑Fi device will change its roaming behavior because a different application is running, or there are too many APs nearby causing Congestion. A misconfigured AP can disrupt the roam for the client as it moves to an AP it can't connect to. Unconnected devices can send excessive probes, slowing down your network and making it difficult for connected devices to roam properly. So where do you start?

Tips to optimize your network

40% of Enterprise Companies roll out a wireless network and never verify it's working.
Troubleshooting end-user complaints about the wireless network can be time consuming and difficult.

Over 50% of the complaints about networks are never actually resolved, but rather just fixed enough to get that user up and running again.
This section is dedicated to giving you the tools to optimize your Wi‑Fi and the wired network that supports it.