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Deco M9 Plus slow after firmware update to 1.5.1 Build 20210126 Rel. 59387

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Deco M9 Plus slow after firmware update to 1.5.1 Build 20210126 Rel. 59387

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Deco M9 Plus slow after firmware update to 1.5.1 Build 20210126 Rel. 59387
Deco M9 Plus slow after firmware update to 1.5.1 Build 20210126 Rel. 59387
2021-05-22 09:17:24 - last edited 2021-05-24 08:22:19
Model: Deco M9 Plus  
Hardware Version: V2
Firmware Version: 1.5.1 Build 20210126 Rel. 59387

I have a prompt to update to the latest firmware version 1.5.1 Build 20210126 Rel. 59387. After the update my network seems rather slow. Opening webpages takes a lot of time on mobile, computer and tablet. Connecting to smart device also take a lot of time after the update. Please help.

 

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Re:Deco M9 Plus slow after firmware update to 1.5.1 Build 20210126 Rel. 59387-Solution
2021-05-24 07:42:40 - last edited 2021-05-24 08:22:19

@TP-Link Hi after the update I have restarted the all Deco's several times. It didn't help. Webpages loaded very slow. The speedtest showed a very fast speed like before the update (750 Mbps up and down). Eventually I restarted the main router and all Deco M9 Plus and it finally works as before. Everything is speedy now. So the solution is not only restarting all Deco's but also the main router! This call can be closed, thank you.

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Re:Deco M9 Plus slow after firmware update to 1.5.1 Build 20210126 Rel. 59387
2021-05-24 06:45:16

@Wailen 

Hi, 

When you did a speed test on the Deco APP or speed test on the mobile devices themselves, was the speed result also very slow?

Please try to clear the browser caches/cookies and change the DNS on the Deco to have a look:

https://www.tp-link.com/en/support/faq/1855/

And did this issue just start after the firmware upgrade?

Thank you very much.

 

 

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#2
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Re:Deco M9 Plus slow after firmware update to 1.5.1 Build 20210126 Rel. 59387-Solution
2021-05-24 07:42:40 - last edited 2021-05-24 08:22:19

@TP-Link Hi after the update I have restarted the all Deco's several times. It didn't help. Webpages loaded very slow. The speedtest showed a very fast speed like before the update (750 Mbps up and down). Eventually I restarted the main router and all Deco M9 Plus and it finally works as before. Everything is speedy now. So the solution is not only restarting all Deco's but also the main router! This call can be closed, thank you.

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