Can't login to joomla 3.4.8 administrator - joomla3.4

I've this wired problem.All of sudden for some computers can't login to the joomla administrator and get redirected back to the login page without any error messages.
I've tested the website on a local server and the issue didn't reproduced.Only on the live server.

It turns out it was a white space issue.
There is an extra line in the joomla index file that causes this redirect problem once removed it everything works fine.

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How to stop URL Redirection on Browser?

I am developing a website using laravel framework. And i wanted to remove public from the URL. To do so i redirected the url http://statustan.com to http://statustan.com/public in cPanel.
I removed the redirection after sometime still the site is getting redirected to the public folder.
I used SSH to edit the .htaccess inside the root directory and have deleted it but the issue persist.
When i opened the website on another PC it is working fine without redirecting. So i searched more and found that i have to flush the DNS so I tried the command ipconfig /flushdns and restarted the browser and PC still no luck.
How to fix this issue?
Update:
I am using Mozilla Firefox Developers Edititon 60.0b10 (64-bit)
I am not facing this issue on other browsers in my PC
There was some problem with caching. When I cleared the cache going through the settings of the browsers, it worked.

Too many redirects: Clearing cookies doesn't work

I have a machine where Magento is deployed. The admin page redirected to itself so many times and now I am unable to get the admin page. I get the too many redirects error. I have already tried clearing the cookies, also made some changes in the magento configuration.
I have tried accessing the admin page from other machines, but it works fine. The problem is only on one particular machine. What possibilities could be tried to resolve the issue? There are no troubles with other sites.
It's probably not even the problem with one machine, but with chrome on this machine. Try incognito mode - if works there try https://productforums.google.com/forum/#!topic/chrome/YzvpLaOmVrY (if it doesn't - check if any of your extensions is allowed to work in incognito mode)

Magento Site only works when ctrl + f5 is used

A Magento website is down in IE and in Firefox. Magento provides the following message: "There has been an error processing your request. Exception printing is disabled by default for security reasons."
However using Ctrl+F5 makes the site work.
The site works in Chrome and in Opera.
It also works if any page is requested other than the home page.
The error in the magento file in var/report lists:
a:4:{i:0;s:108:"SQLSTATE[HY000] [1203] User XXXXXXX already has more than 'max_user_connections' active
However it still works in chrome.
You have a problem with your database; Basically your database is hitting the limit for the amount of connections for that user. Check what your max_user_connections setting is at and increase it.
Be careful, as the higher that number, the more resources it will use. You have to find an even balance.
It was not a problem with Magento or the database. The web host was incorrectly caching the site. We found out when a file I uploaded still appeared in cPanel yet the file had been deleted several minutes before.
The web host flushed their cache of the site. The website immediately loaded without any error.

Magento backend showing blank pages after login?

I have magento 1.9 version and It is working fine on local and demo server but when I move this to live server its admin is not working.It just login admin and only header and navigation bar shows up there.
I tried with remove cache, sessions.disabled all newly installed extensions.but still same problem.My frontend is working fine.
Please help me to solve this issues.
This error was coming due to some entries in table "adminnotification_inbox" . I don't know why this happened.I just empty this table and my admin works fine but as soon as this table have entry same problem occurs, So After empty that table I disable admin notification from following location:-
System->Advanced->Disable Modules Output
Mage_AdminNotification
This solved my problem.
flush your magento root /var/cache folder and /var/session folders, It may have previous server session that may cause problems.

Wamp MyBB Forum Login failure

I have mybb forum on my website.
I am trying to make changes to my website.
I downloaded the contents of my website to localhost/wamp/www
Website works fine. When I try to login into mybb forum, it get redirected to login page again despite of the correct login.
Can someone tell me whats going wrong?
After debugging, I believe this could be a problem with localhost sessions.
Any help would be appreciated very much!
I understood that the session variables are not getting stored, however, the session files are being created.
What is the solution for wamp localhost sessions issue?
The problem is with the cookie domain.
Login as forum admin. Goto Configuration --> settings --> general settings
Clear the field: Cookie Domain
In case your admin login fails or you are not able to select configuration after your login don't worry!
Open the file: /forum/inc/settings.php
Search for $settings['cookiedomain'] and set the field to empty string.
Now you can login into MyBB in your localhost!!

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