--- title: Why too many SSIDs are bad for your Wi-Fi description: Why are too many SSIDs bad for your Wi-Fi? This causes issues with congestion - iPSK is one option to help you remediate image: https://blog.iptel.com.au/hubfs/Blogs/Why%20too%20many%20SSIDS%20are%20bad%20for%20your%20Wi-Fi/Using%20iPSK%20to%20reduce%20SSID%20Count%20(Instagram%20Post).gif --- [![IPTellogo-byline-2020-dark-v2-pnd-optimised-500 (1)](https://blog.iptel.com.au/hs-fs/hubfs/IPTellogo-byline-2020-dark-v2-pnd-optimised-500%20(1).png?width=200&height=59&name=IPTellogo-byline-2020-dark-v2-pnd-optimised-500%20(1).png "IPTellogo-byline-2020-dark-v2-pnd-optimised-500 (1)")](https://iptel.com.au) - [Home](https://iptel.com.au/) - [Solutions](https://iptel.com.au/solutions) Technologies - [Cisco Access Manager](https://iptel.com.au/technologies/cisco-access-manager) - [Cisco Catalyst Centre](https://iptel.com.au/technologies/cisco-catalyst-center) - [Cisco Meraki](https://iptel.com.au/technologies/cisco-meraki) - [Cisco SDA Fabric](https://iptel.com.au/technologies/cisco-sda-fabric) - [Cisco Spaces](https://iptel.com.au/technologies/cisco-spaces) - 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Wi-Fi networks are expected to handle an increasing number of devices, users, and IoT, all while maintaining high performance and security. Many organisations keep adding SSIDs to keep things organised. The problem? Every additional SSID quietly eats into your available bandwidth.  In this blog, we'll explain how too many SSIDs impact performance and how you can address it using iPSK. ![Using iPSK to reduce SSID Count](https://blog.iptel.com.au/hs-fs/hubfs/Blogs/Why%20too%20many%20SSIDS%20are%20bad%20for%20your%20Wi-Fi/Using%20iPSK%20to%20reduce%20SSID%20Count.gif?width=1240&height=664&name=Using%20iPSK%20to%20reduce%20SSID%20Count.gif) It's been a common practice to create multiple SSIDs (Service Set Identifiers) using PSKs (Pre-Shared Keys), each one for a different purpose (e.g. guest, CCTV, security, SCADA, and an ever-increasing number of IoT devices). The ever-growing number of SSIDs develops the risk of network congestion.   Related reading - [Wi-Fi Design](https://iptel.com.au/services/wi-fi-surveys) - [Meraki Cloud Wi-Fi](https://blog.iptel.com.au/meraki-cloud-wifi) - [Meraki Made Simple: Meet Dave](https://blog.iptel.com.au/blog/meraki-made-simple-meet-dave) --- ## Why Multiple SSIDs Reduce Wi-Fi Performance The problem is that each Service Set Identifier (SSID) that's enabled (unless hidden) sends a broadcast every 100msec. While that sounds insignificant, that small amount of traffic is multiplied by the number of SSIDs - so if you have 10 SSIDs, that's ten broadcasts every 100msec. Multiply that by the number of APs you can hear in a given spot - and you quickly discover that the available bandwidth is consumed by advertising SSIDs. SSID congestion occurs when a Wi-Fi network broadcasts too many SSIDs, each requiring management overhead in the form of beacon frames. These frames constantly broadcast the presence of each SSID to devices in range, consuming airtime and reducing the efficiency of the network. Related reading - [Cisco Meraki Wireless Overview](https://blog.iptel.com.au/cisco-meraki-wireless-overview) - [Meraki Switching](https://blog.iptel.com.au/cisco-meraki-switching) - [Wi-Fi Design and Implementation](https://blog.iptel.com.au/top-8-secrets-to-great-wi-fi) --- ## How many SSIDs Should You Have? The more SSIDs there are, the more management traffic competes for airtime, leaving less bandwidth available for actual data transmission. Exacerbating the issues is that Wi-Fi management frames are transmitted at the lowest data rates, ensuring all devices can receive them. This increases the amount of airtime consumed by management traffic.   In highly dense deployments, such as corporate offices and campuses, this overhead is a serious bottleneck, affecting throughput and increasing latency for all users and devices. Most enterprise Wi-Fi networks should have no more than 4–5 SSIDs. Exceeding this can cause airtime congestion, reducing Wi-Fi performance. Experience tells us that the recommended limit is exceeded sometimes by a factor of two or more. Broadcasting double or more the recommended SSIDs will lead to SSID congestion, and result in reduced Wi-Fi throughput and a less reliable Wi-Fi service for all. ![Using iPSK to reduce SSID Count (1)](https://blog.iptel.com.au/hs-fs/hubfs/Blogs/Why%20too%20many%20SSIDS%20are%20bad%20for%20your%20Wi-Fi/Using%20iPSK%20to%20reduce%20SSID%20Count%20(1).png?width=896&height=480&name=Using%20iPSK%20to%20reduce%20SSID%20Count%20(1).png) Related reading - [Cisco Meraki Dashboard](https://blog.iptel.com.au/cisco-meraki-dashboard) - [Managed Services](https://info.iptel.com.au/managed-services) - [Cisco Powered Managed Services](https://blog.iptel.com.au/cisco-powered-managed-services) --- ## Using iPSK to reduce SSID Count Identity Pre-Shared Key or iPSK provides an efficient approach to Wi-Fi management. This feature allows multiple user or device groups to connect to a single SSID using different pre-shared keys.  [![Reduce Wi-Fi Congestion with DFS (Instagram)](https://blog.iptel.com.au/hs-fs/hubfs/Blogs/Reduce%20Wi-Fi%20Congestion%20-%20DFS/Reduce%20Wi-Fi%20Congestion%20with%20DFS%20(Instagram).png?width=240&height=240&name=Reduce%20Wi-Fi%20Congestion%20with%20DFS%20(Instagram).png)](https://blog.iptel.com.au/reduce-wifi-congestion-with-dfs)iPSK eliminates the need for multiple SSIDs while preserving the ability to differentiate users and devices, while maintaining security policies, and network segmentation.  Using iPSK, instead of creating separate SSIDs for employees, guests, and IoT devices, you can broadcast a single SSID. Each user/device group is assigned a unique pre-shared key that corresponds to specific access controls, VLAN assignments, or security policies. The result streamlines the network while still providing the flexibility to manage different types of traffic securely.  Related reading - [Cisco Meraki Access Points](https://blog.iptel.com.au/cisco-meraki-access-points) - [Cisco Meraki Switching](https://blog.iptel.com.au/cisco-meraki-switching) - [Wi-Fi Concepts](https://blog.iptel.com.au/wi-fi-terminology) --- ## Why too many SSIDs are bad for your Wi-Fi: Summary Too many SSIDs (more than 4-5) are bad news for your Wi-Fi. There are options to help you consolidate these into fewer SSIDs, with Cisco ISE and the iPSK feature being options to help. You could take an alternate view and split your SSIDs, so different ones broadcast on 2.4GHz vs 5GHz (and now 6GHz), and you'll have fewer on each - but that may not suit your business. In some installs, the 2.4GHz is left for guest access and the other bands for the traffic you really care about or needs to be treated with a higher level of control. Cisco ISE allows profiling, so this is a good way to determine what is connecting and put individual clients on different back end VLANs (and SDA Fabric takes this to the next level). iPSK is a nice feature if you want to consolidate SSIDs which use pre-shared keys - so one to keep in the kit bag and reduce the number of overall SSIDs, but still keep a good level of security. Hopefully this blog has been a useful read - if you need help with your Wi-Fi network, [feel free to drop us a line.](mailto:sales@iptel.com.au)   --- #### Related Articles ###### [Meraki Managed Wi-Fi](https://blog.iptel.com.au/meraki-managed-wifi) Dec 18, 2025 ###### [SSID Consolidation with iPSK](https://blog.iptel.com.au/ssid-consolidation-with-ipsk) June 25, 2026 ###### [Securing your Cisco Wireless Network](https://blog.iptel.com.au/securing-your-cisco-wireless-network) Mar 12, 2026 Free tool ### How Many Wi-Fi Access Points Do You Need? Work out APs, PoE and switch ports floor by floor, using the same survey grades our Cisco wireless engineers design to. Takes under a minute. 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