I’m on Craft v. 2.6.2983 and am encountering the well flagged issue of the control panel logging me out after 60 seconds. I've tried most of the solutions posted here and have had no success in resolving the issue.

We're three months into a Craft deploy this issue has only begun to arise in the last number of weeks. 

I’m using redis for session storage and my sessions are remembered when I refresh or open a new tab. Using redis-cli monitor I can see sessions are being stored with the correct TTL. 

I've set the following in my config/general.php:

```
'appId' => 'itmaapp123',
'defaultCookieDomain' => '.itma.ie',
'validationKey' => [REDACTED],
'overridePhpSessionLocation' => 'tcp://redis:6379',
'cacheMethod' => 'redis',
'userSessionDuration' => false

```

I've also set the relevant variables in config/rediscache.php (including timeout => 300).

Any insights on what might be causing the issue? My stack is Craft 2.6.2983 on nginx with php7.0-fpm and redis for session storage. nginx, php and redis are all running in docker containers behind an nginx reverse proxy. I'm using Cloudflare with SSL for cache and CDN.

Any help much appreciated.