topic Re: O2 Open issues in Tech Support

O2 Open issues

Dom90 — Tue, 30 Sep 2025 13:42:44 GMT

I’ve signed up to O2 open and received the email to my work address.

when I follow the link and enter email address I either have error 400 or 500 and link not working.

can anyone please assist?

Re: O2 Open issues

MI5 — Tue, 30 Sep 2025 15:15:06 GMT

@Dom90

Use this link https://open.o2.co.uk/Registration

Re: O2 Open issues

Dom90 — Thu, 02 Oct 2025 06:06:00 GMT

Thanks,

the issue isn’t this page.

after the o2 open invite is sent to work email it provides a link for you to then sign in.

after entering an email address- either error 400/500 appears and you cannot progress.

Re: O2 Open issues

MI5 — Thu, 02 Oct 2025 07:01:40 GMT

@Dom90

Remove the redirects after the main identifier from the url and hit enter.

Re: O2 Open issues

madasaf1sh — Thu, 02 Oct 2025 07:37:18 GMT

@Dom90

It might be worth asking your IT Dept, as I know we some times do URL changes to make sure we scan the URL. I had to whitelist the o2 open URL's as well as others from o2.
Also worth speaking to your Rewards team after and letting them know..

Re: O2 Open issues

Dom90 — Sun, 05 Oct 2025 09:31:37 GMT

I’ve found a solution, a community manager is directly applying the discount after I have shared my details.

thanks all for commenting

Re: O2 Open issues

pgn — Sun, 05 Oct 2025 09:54:18 GMT

Great news, @Dom90 - the Forum Manager does a lot for people landing up here with such issues - I sometimes wonder how he fits it all in...