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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
Cafog · 12/05/2026 11:31

Worked for me initially when I followed yhe instructions. Its happened again snd clearing cache doesnt work this time. Chrome browser. Very annoying. On the app but hate it

VividDeer · 12/05/2026 10:21

Mumsnet seem very poor in their response to this.
There is no way to clear cache from one site on chrome

I'm not clearing my data from 472 other sites just because MNHQ can't fix it. I guess my time on Mumsnet is suddenly managed

Gettingbysomehow · 12/05/2026 10:05

Im going to take my phone to the phone shop.

Songlines · 12/05/2026 09:46

Getting this message on my Android phone but not on my laptop. All to the good because it'll keep me off MN, too much hassle unless I'm on my laptop anyway, which I am at the moment :-0

Nitgel · 12/05/2026 09:45

I get 400 bad request on Chrome since last night. Can open on Samsung browser

BlackCatsAreBrilliant · 12/05/2026 09:41

I've had this today, twice.

Chrome on a phone.

Both times, I then deleted the last 15 minutes of browsing history and that worked.

I'll probably regret saying that, as it probably means it won't work next time.

Seeline · 12/05/2026 09:25

limetrees32 · 12/05/2026 09:01

I don't know if my understanding is correct but ...it's a cache problem .The cache is locally stored details from a site .We have to get rid of the flawed details stored in our cache to prevent errors which stop a site loading.
But the details that are stored originate from the site, MN in this case.
So why does the MN site have these flaws?
A one off glitch feels acceptable but from posts on this thread it seems that glitches captured in people's caches have occurred on several different days and times.
So not a one off mishap.

And if MN have fixed it, why does the problem reoccur after people have cleared their cache multiple times?

limetrees32 · 12/05/2026 09:01

I don't know if my understanding is correct but ...it's a cache problem .The cache is locally stored details from a site .We have to get rid of the flawed details stored in our cache to prevent errors which stop a site loading.
But the details that are stored originate from the site, MN in this case.
So why does the MN site have these flaws?
A one off glitch feels acceptable but from posts on this thread it seems that glitches captured in people's caches have occurred on several different days and times.
So not a one off mishap.

OP posts:
purpleme12 · 12/05/2026 08:47

Yep I had the problem on my laptop yesterday and that's a different browser to on my phone

RedToothBrush · 12/05/2026 08:40

I'm having the problem on both my laptop and phone.

They have different browsers.

The lack of testing is embarrassing.

Linksrechtsgeradeaus · 12/05/2026 08:12

I got a few days on Edge without a problem then the 400 message returned. I've cleared the cache several times, switched off the laptop etc. Private viewing works.
I would blame my laptop if I was the only one with the problem but clearly I'm not.

FuzzyPuffling · 12/05/2026 08:01

I've found a better option for me instead of incognito.

When I get the 400 message, the three dots, top right, allow me to select the option of using Samsung Internet ( just for MN) which is working.

Thank goodness, or I'd have given up.

As a pp said, how can you not have the ability to test on an android phone?

RedToothBrush · 12/05/2026 07:56

decorationday · 11/05/2026 23:20

"If you're still getting the error message it's worth closing all your open tabs, before clearing your cache again (not just cookies) and then completely relaunching the browser."

With respect, I'm not doing that. That's ridiculous and a waste of my time.

I've done that and I am STILL having problems. Saying it's an us problem not a site problem is frankly ridiculous! You'll lose thousands of users because you can't be bothered to sort it out!

Nos4r2 · 12/05/2026 07:35

Had this happen again twice this morning. It's got to be a Mumsnet fault.
Keep having to delete my browsing history to restore. Fed up with Mumsnet and thier useless excuses.

MotherofPufflings · 12/05/2026 07:23

Only started happening to me yesterday, specially when I clicked on the search tab at the bottom of the page. I've cleared the cache and it hasn't worked.

Seeline · 12/05/2026 07:14

@BeckyAMumsnet @MattTech
The 400 error only started for me a couple of days ago, so how is that caused by something MN did a week ago, and then fixed?

I have since cleared my browsing history, cache, files, images and cookies numerous times. I can then access the active list but as soon as I click on a thread I get the 400 error again and that's it. This is an Android phone in Chrome. How do your tech team not have an Android device to test on?! Half the population uses one!!

Honestly, this is a joke! No otherwise site has these constant issues. Your advertising revenue must have tanked over the last week.

VividDeer · 12/05/2026 06:17

I'm on the verge of giving up too
It worked for a few days and now same problem

purpleme12 · 11/05/2026 23:46

Well if it keeps happening I'll be giving up

I don't understand how they're explanation can be true if it's happened again today and happened on the laptop now too

WhatDoRacoonsSay · 11/05/2026 23:22

I gave up trying days ago and just go incognito now.
Absolutely nothing worked.

decorationday · 11/05/2026 23:20

"If you're still getting the error message it's worth closing all your open tabs, before clearing your cache again (not just cookies) and then completely relaunching the browser."

With respect, I'm not doing that. That's ridiculous and a waste of my time.

decorationday · 11/05/2026 23:14

There are only so many times I'm going to clear my cache just to be able to view one or two pages before the error returns.

Happytaytos · 11/05/2026 23:10

I keep being asked to verify via cloud flare too.

purpleme12 · 11/05/2026 21:52

Ok so the 404 message started on Sunday 4th. (So it only worked on my laptop then). I did actually manage to get it off and access Mumsnet last Thursday. All ok since then....

Till today where it the message happened again!
Not only that though, it happened on my laptop today for the first time!
I've fixed it as per what it says on here but surely the explanation given earlier for this fault doesn't make sense now....
Why is this happening still??

Potooooooooes · 11/05/2026 17:52

I have finally been successful in clearing my cache and once more be able to access via the laptop as per usual at last but had to go through the faff of having to sign back in to everything else. Annoying.

MassiveOvaryaction · 11/05/2026 15:55

I mean Sunday last week btw.