Most well-run networks have everything labeled in some fashion.This service may be provided locally or from an internet service provider. Include your DNS findings in any trouble ticket. Basic DNS tests are easy, and they tell a lot when troubleshooting. If I put the IP address in the browser and get to the site, we have a DNS issue. DNS translates the SearchNetworking server name to and from its IP address, 206.19.49.153. Use ping, but know that it's not absolute. But ping may fail for several reasons - from host-based firewall settings to filtering along the way. This tells you whether the target device is alive, the network path between source and destination is good in both directions, and how long it took to get a response. One of the most universal network troubleshooting steps is to ping a destination. But, when trouble hits, this is another area of great variability across client devices and specific locations covered by the wireless network. Generally, no one cares as long as things are running well. How do you know what speed you should get on a particular WLAN? That's a tough question with many variables depending on device model, network hardware in use and even internet service provider speed.If my device doesn't roam well, my weak signal can be poor device performance on a perfectly healthy network. This is not spelled out in the 11 standard, so vendors have flexibility to put their own spin on roaming. Roaming is mostly all client-controlled, subject to however the wireless adapter driver code was written. Some client devices are especially poor at roaming, which is the process of leaving one cell for a stronger or better one.Unfortunately, the algorithms behind signal bar indications vary across devices, and your "strong" signal may seem only mediocre on my device even when we are in the same location. If the bars are not present or too weak, then that's good information - but it may not tell the whole story. When wireless network connectivity is in question, we probably all take a look at the bars.
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