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2.5Ghz (4G) wifi unstable and slow

2.5Ghz (4G) wifi unstable and slow

2.5Ghz (4G) wifi unstable and slow
2.5Ghz (4G) wifi unstable and slow
2025-08-13 04:54:31 - last edited 2025-08-13 17:14:27
Tags: #Network Connectivity #2.5G
Model: Deco BE75  
Hardware Version: V20
Firmware Version: 1.0.6 Build 20240725 Rel 33400

Devices using 2.5G wifi network are disconnecting constantly, speed is slower than usual...

I also verified with my older Wifi router and 2.5G works normally with it, it seems like Deco BE75 has a bug with this network, 5G and 6G works perfectly, but 2.5G doesn't, Channel can't be configured, all diagnostics done and without any issue found, no interfierience neither.

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#1
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1 Accepted Solution
Re:2.5Ghz (4G) wifi unstable and slow-Solution
2025-08-13 17:14:03 - last edited 2025-08-13 17:14:27

  @David-TP after a quick test, it seems the whole issue is resolved by using 20Hz as 2.5G band, it seems like some devices struggle using 40Hz. Good feature to be included though, being able to select channels and band for all networks is a big deal, I love it

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#4
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3 Reply
Re:2.5Ghz (4G) wifi unstable and slow
2025-08-13 08:52:57

  @Alnvar 

Hi, welcome to the community.

There is a beta firmware 1.1.0 for Deco BE75_V1 that has added Channel Selection.

You can find the download link in the private message.

Please let me know how it works.

Wait for your reply.

Best regards.

▶Check What's Currently Going on With Deco ▶Deco BE85 1.2.0 Enhanced Mesh Backhaul Stability and Device Roaming Experience ▶Deco BE65/BE65 Pro 1.2.0 Enhanced Mesh Network Stability and System Security ▶Deco BE75 1.1.0 Added WireGuard VPN, Manual Channel Selection and More Try to leave a Message if urgent help is required.
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#2
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Re:2.5Ghz (4G) wifi unstable and slow
2025-08-13 16:37:20

  @David-TP Thanks for the info and the Upgrade, I've upgraded my Deco devices already, I'll be testing 2.5G network using multiple channels.

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#3
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Re:2.5Ghz (4G) wifi unstable and slow-Solution
2025-08-13 17:14:03 - last edited 2025-08-13 17:14:27

  @David-TP after a quick test, it seems the whole issue is resolved by using 20Hz as 2.5G band, it seems like some devices struggle using 40Hz. Good feature to be included though, being able to select channels and band for all networks is a big deal, I love it

Recommended Solution
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#4
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Helpful: 2

Views: 152

Replies: 3

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