My site is running 2.0.15
The site address is
https://amyloidosis.org.uk/forumOnly some, but not all computers, we can only login using incognito mode. This is true for all users. The same user can also login from other machines.
I have tried researching the problem and this and changed this in the theme:
<form id="guest_form" action="', $scripturl, '?action=login2" method="post" accept-charset="', $context['character_set'], '" ', empty($context['disable_login_hashing']) ? ' onsubmit="hashLoginPassword(this, \'' . $context['session_id'] . '\');"' : '', '>
<div class="info">', sprintf($txt['welcome_guest'], $txt['guest_title']), '</div>';
if (!empty($modSettings['enableOpenID']))
echo '
<br /><input type="text" name="openid_identifier" id="openid_url" size="25" class="input_text openid_login" />';
echo '
<input type="hidden" name="hash_passwrd" value="" />
<input type="hidden" name="', $context['session_var'], '" value="', $context['session_id'], '" />
</form>';
This has not helped.
I have tried local things like clearing browser, which seems logical as I can login using incognito, but it didn't help.
I also tried switching theme, but this happened on both the Default theme and the Dani theme.
The mods that I have installed are "anti Bot" and GDPR Helper.
I also tried changing some server settings, this also hasn't helped. What I currently have is attached.
I greatly appreciate any ideas about how to fix this.