there is a problem communicating with the microsoft dynamics crm server.

We have 10 users using microsoft dynamics crm online.

We have been using for some time .

Since yesterday , all the users outlook cannot connect to CRM online .

In outlook , the track button has disappeared .

Also , I saw the sync with microsoft dynamics crm button is greyed out .

I tried uninstall and reinstall the crm client .

I tried to do the configure the microsoft dynamics crm for outlook wizard again but not successful.

Two errors are showing :-

1) There is a problem communicating with the microsoft dynamics crm server

2) Cannot connect to microsoft dynamics crm server because we cannot authenticate your credentials.

Now all stations outlook cannot connect to microsoft dynamics crm .

However , we can still get into CRM via internet explorer .

This does not help , we need to connect through outlook to sync all the visits , letters etc.,

Thanks

David