Initially, when the client PC visits the site for the first time, the device connects to AP1. Minimum bit rate and transmitting power are AP parameters that can be manipulated to avoid the sticky client condition. The exact numbers for these settings are subjective, depending on the wireless environment and the parameter that influences the particular client the most.įor example, we have two APs (AP1, AP2), and a client device PC. Settings That Can Be Implemented to Avoid Sticky Client Issues This can be mitigated by turning on Client Balancing. This might result in one AP getting overloaded while the rest of them are idle. Most clients simply connect to the first AP they see and will try to stay connected the same one until the signal is lost. Not all devices have the capabilities to first calculate the signal-to-noise ratio of all the available APs around and pick the one with the best signal strength. The main factors that can be manipulated to affect this are: Various factors influence the client's decision of which AP it should connect to. However, the client's decision can be influenced by using the correct configuration settings. The decision for which AP to connect to is completely made by the client and there is no way to force a client to connect to a particular AP. The initial association process is explained in the 802.11 Association Process article. The access points act as a bridge between devices and the local network infrastructure. Meraki Authentication uses a Meraki hosted RADIUS server, and testing with this may be helpful for identifying local or client-side RADIUS issues. Meraki Authentication can be used as an alternative to RADIUS Authentication for testing as the basic functionalities are similar. This also prevents disturbing the entire network when only one AP is in question. These settings will remove all the third parties involved and make it easier to diagnose the issue between the client and the access point. If you want to contain your test, go to Wireless > SSID Availability and t ag the SSID with the AP's tag so that only the AP in question broadcasts it. Association requirements: Pre-shared key or Open.Try creating and testing connectivity to an SSID with the following settings: Generally, the best way to resolve an issue with a client not being able to connect to a specific AP will be by creating a basic test SSID with as few configuration settings applied to it as possible. Test an SSID with Minimal Configuration Settings This will generate a report for all the failed connection as shown in the image below: More information for the RADIUS troubleshooting can be found in the RADIUS Issue Resolution Guide.įailed connections can be checked by navigating to Wireless > Wireless Health > Connections and then clicking on the failed connection. When using RADIUS or AD authentication it is a good troubleshooting step to re-verify the credentials for AD, and the RADIUS server credentials as well. Sometimes when a pre-shared key for an SSID is recently changed on the dashboard using Google Chrome, the old value may be cached and the key is never actually changed. It's important to verify that any changes to the pre-shared key are actually applied and saved. It is a good practice to change such a setting in a private browser and re-verifying that the changes were saved properly. When a client is unable to connect to a specific SSID, incorrect credentials (username or password) are the most common issue. This issue can often be ruled out by simply deleting the SSID from the device, trying to connect again and then re-typing the pre-shared key. More information on DHCP flows on Netmania. If we do not see DHCP Offers coming from the DHCP server or no Acknowledgment packets to the AP's wired interface, then there is likely an upstream or DHCP server issue. Once you have downloaded a packet capture file, open it in Wireshark and use the filter “dhcp” to show DHCP packets. Multiple captures and attempts are important to ensure you have a useful amount of data. This is helpful for determining whether DHCP Offers or Requests are passing through the access point.
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