Deco XE75 unusable wifi on main unit after update 1.2.2

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Deco XE75 unusable wifi on main unit after update 1.2.2

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.
Deco XE75 unusable wifi on main unit after update 1.2.2
Deco XE75 unusable wifi on main unit after update 1.2.2
2023-06-21 10:41:11
Model: Deco XE75  
Hardware Version: V1
Firmware Version: 1.2.5

After updating to 1.2.2 the wifi is almost unusable (limited connection or extremely high ping and low up and down speeds). This started happening from update 1.2.2 and update 1.2.5 didn't help. Both tests below were made next to the unit.

Speed test on main unit:

Speed test on both slave units:

 

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#1
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7 Reply
Re:Deco XE75 unusable wifi on main unit after update 1.2.2
2023-06-21 21:27:02

  @OnlyCORE 

 

I'm having the same issues. All fine until performing the firmware update this morning. Speeds now slow/inconsistent and very laggy with high ping.

 

I have XE75 Pro.  

 

Any ideas on a solution?

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#2
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Re:Deco XE75 unusable wifi on main unit after update 1.2.2
2023-06-25 10:20:02

  @OnlyCORE 

Hi, There is a beta firmware 1.2.6 ready for Deco XE75 V1-1.2.5 which is also an early-release 1.2.6.

Please refer to the private message to install the beta firmware and check whether it helped with the current issue.

Wait for your reply.

Best regards.

 

@Rgjones Nice to see you again.

Please refer to the reply in this post.

https://community.tp-link.com/en/home/forum/topic/612712?replyId=1219812

Thank you very much.

Best regards.

 

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#3
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Re:Deco XE75 unusable wifi on main unit after update 1.2.2
2023-06-25 12:30:21 - last edited 2023-06-25 12:31:34

  @David-TP private message?

Also will beta firmware void warranty?

And will the beta auto update to stable release?

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#4
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Re:Deco XE75 unusable wifi on main unit after update 1.2.2
2023-06-26 14:53:51 - last edited 2023-06-27 08:19:44

I have the same issues as described in the first post -- I updated the firmware Thursday the 22nd, and I've had a very flaky network connection since then, with wildly varying pings. During the weekend they ranged from normal (sub-10ms) up to 2000ms.

 

Current version:

 

 

I've switched to an old router for now, since the TP-Link one is largely unusable until this is resolved.

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#5
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Re:Deco XE75 unusable wifi on main unit after update 1.2.2
2023-07-03 17:30:42

I've now manually updated to 1.2.6 found in this thread which resolved my issue.

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#6
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Re:Deco XE75 unusable wifi on main unit after update 1.2.2
2023-07-04 10:50:25

...and now the problems showed up again. Seems to briefly work as normal after a reboot, and then the quality rapidly deteriorates.

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#7
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Re:Deco XE75 unusable wifi on main unit after update 1.2.2
2023-08-28 12:09:36

It has been more than 3 months since this issue arised. When can we finally see a fix for the 5GHz band?

1.2.6 released 2 months ago fixed nothing.

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#8
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