# Unable to detect smart switch

**URL:** <https://forum.ewelink.cc/t/unable-to-detect-smart-switch/10160>\
**Category:** Uncategorized\
**Created:** [December 12, 2022, 7:33am UTC](https://forum.ewelink.cc/t/unable-to-detect-smart-switch/10160 "2022-12-12T07:33:23Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![azminms](https://avatars.discourse-cdn.com/v4/letter/a/f9ae1b/32.png) [@azminms](https://forum.ewelink.cc/u/azminms)\
**Post date:** [December 12, 2022, 7:33am UTC](https://forum.ewelink.cc/t/unable-to-detect-smart-switch/10160/1 "2022-12-12T07:33:23Z")

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Hi  
Recently i changed my router to TP link AC3000 (AX3000 4-Stream Wi-Fi 6 Router) but after that i cant detect the sonoff smart switch using the quick pair and also compatible mode way.  
Any setting i need to change at the router ?

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**Author:** ![Undeene](https://dub1.discourse-cdn.com/flex005/user_avatar/forum.ewelink.cc/undeene/32/878_2.png) [@Undeene](https://forum.ewelink.cc/u/Undeene)\
**Post date:** [December 12, 2022, 7:54am UTC](https://forum.ewelink.cc/t/unable-to-detect-smart-switch/10160/2 "2022-12-12T07:54:45Z")

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Please make sure that you are connected to 2.4 GHz WiFi, since your router supports 2.4, 5 and 6.

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**Author:** ![Teki](https://dub1.discourse-cdn.com/flex005/user_avatar/forum.ewelink.cc/teki/32/1161_2.png) [@Teki](https://forum.ewelink.cc/u/Teki)\
**Post date:** [December 12, 2022, 8:10am UTC](https://forum.ewelink.cc/t/unable-to-detect-smart-switch/10160/3 "2022-12-12T08:10:53Z")

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Try to set different wifi name (SSID) for 2.4Ghz and 5Ghz wifi

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<div class="post-metadata">

**Author:** ![azminms](https://avatars.discourse-cdn.com/v4/letter/a/f9ae1b/32.png) [@azminms](https://forum.ewelink.cc/u/azminms)\
**Post date:** [December 12, 2022, 10:46am UTC](https://forum.ewelink.cc/t/unable-to-detect-smart-switch/10160/4 "2022-12-12T10:46:47Z")

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done but still having same problem