Anybody? The form will sit until the end of time unless I manually poke round to force a refresh. And why are there no related options in Calendar Properties (see attachment)?

Well lets start with a reality check. A home internet connection to a remote server will be very unlikely to complete a mail check, or a calendar sync in one minute. Lets alone both. Try 10 minutes and see if you are still having issues with syncing. Network latency poor internet firewalls VPN's and security software all have detrimental impacts on how long things take to be done.

Generally calendars are synced every 30 minutes and if they are calendars with thousands of entries may be quite slow and impact Thunderbird's responsiveness. This is the standard properties for a calendar from the right click menu.

I am guessing your calendar is provided via an addon. You mention EAS and Thunderbird does not support that natively. If you are using the TBSync addon. Perhaps you might want to ask in their support about your issues with that, which is given on the download page as https://github.com/jobisoft/TbSync/wiki Or perhaps you might want to ask the exchange active sync people here. https://github.com/jobisoft/EAS-4-TbSync/wiki/About:-Provider-for-Exchange-ActiveSync

Note the download page for both parts also list a support email.

Thank you for your kind reply, Matt. I've restored Tbsynch to the default 30 minutes and will resume testing. Please note the following: 1. All calendar entries synch instantly, but the form does not update. 2. Updates to the form can sometimes be forced by clicking on the calendar 'eye symbol' once to hide same then clicking again to make it reappear, or clicking off the Day tab to Week and back again. 3. In all cases appointments will instantly appear if TB is shut down then opened again.

So, the data is there. It just isn't on the form.

The calendar is not an add-on, it's Lightning, which I understand is now integrated into the mail.

Thanks for the suggestions to contact/view the wiki or the developers of the EAS and synch products.

Michael

I have an update.

First, I tested by posting under my MS account in Outlook on one machine a calendar appointment to the TB/Lightning account on another machine. Normally, this would go straight to the calendar and clicking on it would confirm the request. As mentioned before, nothing appeared but data was transferred.

A different workflow was revealed by having somebody else with a different account - again in Office Outlook - make a request. That would go to TB *Mail* and confirming *would* refresh the Lightning calendar instantly. So the initial test itself was flawed.

By the way, I put TbSynch back to about 3 minutes. Thanks.

Here's an update. Both email and events (tasks) update through the forms instantly after a synch. Again, calendars do not. Manually poking forms on and off and/or closing and opening TB are the only ways to refresh and see changes. If I don't do that, the calendar will sit until the end of time without refreshing.

So the underlying data is there. The series of calendar forms remain unchanged.