Since yesterday, on 2 servers in different locations, with this same problem !

your session has expired . please login again

This occurs every 5 min or less!
We are using webmail
Have checked the part of the configuration for connection timeout ! Is in 2 days , got further increase , or decrease ! But nothing ....

Functioned normally , suddenly began these problems .....

It happens with all users

- A few days ago I had problems with certificate , because he had won , it was with a command and td resolved

- I thought from the beginning that the problem was in zmconfigd , it was stopped, but iformacoes analyzing and searching the internet , I saw that it was a permission problem ... zmconfigd working but main problem was not solved .

- I have other servers with the same settings , but are behaving normally .

If someone who has been there , has a light ! Please ... I'm trying to solve this since yesterday and so far nothing !

Sorry my bad inglish
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