Unable to sign in to certain websites

[Tarnbrick]

Hi.
I am new to this forum and I am located in the UK. My Samsung Galaxy Tab A 10.1 has for no obvious reason started to refuse to let me sign in to some websites. I send for the websites and they arrive but when I go to fill in the sign in username the screen goes blank and there is no way to get the website back. This happens with Amazon, Argos, Marks and Spencer, ebay to name a few. I can download and use the apps for these websites with no problems but I always prefer the website layouts. This only happens with some websites, most of them work OK.
The websites I refer to work correctly on my mobile phone which is also Android. I have tried a factory reset and I have uninstalled and reinstalled everything on the tablet but the problem persists. I have trawled through every possible setting but can find no solution.
Any ideas would be welcome.

 

[B. Diddy]

Welcome to Android Central! Does this happen on any wi-fi network, or only certain ones? Are you using a VPN?

 

[Tarnbrick]

Thank you for your reply.
I only use one network which is BT Internet. This is what happens with Amazon - as an example - I access the website which comes up with the normal Amazon landing page. I accept cookies. I can then go to "sign in". If I do that the sign in screen for username and password appears but within a second or so has disappeared and the screen is blank. There is no way to get back to any previous screen. I could as an alternative from the landing page do a product search and put something into the basket. Then I have to sign in but again the same thing happens. There are several other websites where this happens but most websites work normally. I have no problem with the Android apps for any websites.
I can see no logical reason for this.

 

[B. Diddy]

Ok, and you're not using a VPN, right?

Have you already tried clearing the app cache/data for the browser app in Settings>Apps​?

 

[Tarnbrick]

Thanks for reply. I have narrowed this down to any website which I have in the past become a user of and created an account there. Other websites are fine. I have now uninstalled every app and removed any website icons etc and after all that I have done yet another factory reset. On reinstalling everything it now seems to be working as it used to do. I still have no idea why this happened but fingers crossed.

 

[B. Diddy]

Glad it's working for now! Do you have any 3rd party password manager apps installed?