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Original poster

HELP 404 error message when trying to open threads

237 replies

limetrees32 · 04/05/2026 12:30

On Android phone ,not using app ,viewing a thread about help dress teenage daughter for wedding clicked on link provided by OP to White Fox clothing co. When tried to go back to MN nothing but error message .
Sending this from Chromebook .

OP posts:
Thread gallery
12
DuckDuckDuckGooseDuck · 05/05/2026 21:48

I thought it was back working this evening as the active threads page loaded on a "normal" tab. But as soon I clicked onto a thread, I got 400 bad request. So I'm back in incognito mode again. Very frustrating.

Slouped · 05/05/2026 21:37

InflagranteDelicto · 05/05/2026 21:33

Everything was cleared and it still only worked incognito. I use chrome on a pixel.

I'm exactly the same.

InflagranteDelicto · 05/05/2026 21:33

Everything was cleared and it still only worked incognito. I use chrome on a pixel.

Slouped · 05/05/2026 21:28

I've cleared cache, data and cookies and mine still isn't working except on incognito mode. Just managed to get onto one page before I got 404 and now just get that every time. Mumsnet is the only site I'm having an issue with.

BatshitCrazyWoman · 05/05/2026 21:04

I access MN via Chrome on a Google Pixel phone. Had the 404 message from yesterday night until this afternoon, when I cleared my cache and cookies, and 🤞🏻 it's working for me now.

TutTutTutSigh · 05/05/2026 21:00

Oh finally, haven't been able to view mumsnet while logged in since yesterday. Constant error messages, I actually thought I'd been banned - but I only posted a link to some shorts the other day and they weren't that bad 😂

ScottBakula · 05/05/2026 20:56

I am getting the same issue , either 400 404 error , its been a issues since yesterday evening on Samsung android , chrome .
I have cleaered cookes and cache sevral times with no change .

HP laptop on chrome is fine

diddy63 · 05/05/2026 19:08

Just did the clearing thing & it worked.

diddy63 · 05/05/2026 18:52

Just happened to me on laptop with chrome.

Been like that for about half an hour!

purpleme12 · 05/05/2026 16:27

limetrees32 · 05/05/2026 08:46

Below from MN just now
Thanks, we do appreciate it. As you can see you are no longer alone and Tech is on the case. No updates as yet, unfortunately, but the working day has yet to begin in earnest.
Slightly irritated by the " you are no longer alone " as I wasn't alone when I raised the issue yesterday.
Also slightly irritated by an organisation as large as MN rolling out " working day only just begun in earnest"
Surprised they didn't remind me that yesterday was a bank holiday.
Although that might have implied that they're not fully manned at weekends and public holidays.
I expect they'll have finished their coffee soon and will get up from the kitchen table that we know is where MN is run from.

Mmmm yes i can see why you were irritated by it

DuckDuckDuckGooseDuck · 05/05/2026 15:24

Still getting 400 Bad Request. Chrome browser / Google pixel 9. Sending this from incognito tab. All cookies/cache cleared multiple times over weekend but still no luck. At least I got to read a book instead of mumsnetting!

MassiveOvaryaction · 05/05/2026 13:50

Still getting this. Did the cache clearing thing and made no odds (using Chrome on Google Pixel android phone). Can read/post in incognito though 🥸

WeMeetInFairIthilien · 05/05/2026 13:50

Yes, cleared both cookies and cache.
Restarted phone.
Cleared again.
Still nothing.

Only accessible from Chrome incognito, and thet is taking an age to load. All other websites I use are fine.

murasaki · 05/05/2026 13:47

dementedpixie · 05/05/2026 13:44

Im getting the 400 error on Samsung Internet. Am posting this on chrome - android phone

I'm the other way round, error message on chrome but Samsung Internet is OK.

dementedpixie · 05/05/2026 13:44

Im getting the 400 error on Samsung Internet. Am posting this on chrome - android phone

Younginside · 05/05/2026 13:43

Currently getting 'error 400 bad request'

Younginside · 05/05/2026 13:40

Hi, yes I'm clearing the cache but no luck. The error message briefly suggested that the header is too big to load, but I only saw that once

MNHQ
BeckyAMumsnet · 05/05/2026 13:24

Hi all, huge apologies that this is happening again - we are working to identify the cause. Just checking that those who are still seeing the error message are clearing the cache and not just cookies? If only cookies were cleared, your browser might still be loading an older cached version of the page, so it’s worth making sure cached files have been cleared as well. You can do this for just Mumsnet. https://www.mumsnet.com/talk/site_stuff/5522378-update-on-recent-404-errors-and-how-to-clear-your-cache

It's also worth closing your browser after this and relaunching it. Thank you and again - sorry for this.

Update on recent 404 errors and how to clear your cache | Mumsnet

Hello everyone. We’ve now identified what caused the 404 errors some users were seeing late last week and over the weekend. There was a very brief...

https://www.mumsnet.com/talk/site_stuff/5522378-update-on-recent-404-errors-and-how-to-clear-your-cache

WeMeetInFairIthilien · 05/05/2026 11:52

Still nothing Mumsnet working in Chrome

Linksrechtsgeradeaus · 05/05/2026 10:57

Working fine on laptop now. Fingers crossed.

Gettingbysomehow · 05/05/2026 09:02

limetrees32 · 05/05/2026 08:31

@TheyGrewUp
https://www.mumsnet.com/talk/site_stuff/5522378-update-on-recent-404-errors-and-how-to-clear-your-cache
Any help?

I asked Gemini and tried this but it didn't work.

Gettingbysomehow · 05/05/2026 09:01

Younginside · 04/05/2026 12:58

Also getting 400 or 404 error message on android

Me too on my android, I can only open mumsnet on my pc.

Original poster
limetrees32 · 05/05/2026 08:46

Below from MN just now
Thanks, we do appreciate it. As you can see you are no longer alone and Tech is on the case. No updates as yet, unfortunately, but the working day has yet to begin in earnest.
Slightly irritated by the " you are no longer alone " as I wasn't alone when I raised the issue yesterday.
Also slightly irritated by an organisation as large as MN rolling out " working day only just begun in earnest"
Surprised they didn't remind me that yesterday was a bank holiday.
Although that might have implied that they're not fully manned at weekends and public holidays.
I expect they'll have finished their coffee soon and will get up from the kitchen table that we know is where MN is run from.

OP posts:
Wipeywipey · 05/05/2026 08:44

Also getting this from my chromebook but not mobile app.

OP posts:
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