Yahoo Calendar - CalDAV

I have followed the steps you listed above, but it cannot verify the account.
Is there any known bugs with CalDAV on 3.0? It is not working for me.

yes. Does it need to be on "classic" mode?

Thanks for your help.

I have switched to beta mode, but for some reason, it still does not verify my account. My email account is setup perfectly fine, but CalDAV is not!! ahhh

I am getting so frustrated. I am about to slam this thing against the floor... I mean pillow. LOL

...need some humor..

For some reason, I switched to WiFi and was able to verify the account.

Not sure why it does not sync/setup over 3G..

Thanks for your help.

so i have discovered that the calendar account verifycation, and sync from the phone yahoo calendar and vice versa only appears to function correctly over wifi. This bites

An update for all of you who can't sync over cellular networks, I emailed yahoo informing them of my troubles.
Below you will see their reply to me

Hello ___,

Thank you for writing to Yahoo! Calendar.

I understand that you are not able to sync your Yahoo! Calendar with
your iPhone using the mobile network, and I apologize for any
inconvenience this has caused you.

Thank you for the information that you can sync using wi-fi, this
information is very helpful.

Are you using an iPhone 3G that has been upgraded to iPhone OS 3, or a
new iPhone 3G S?

Our Engineering team is already working on the resolution now and we
intend to have it corrected as soon as possible. The ticket number for
this issue is _____.

I appreciate your patience while we correct the issue and apologize for
the inconvenience.

Thank you again for contacting Yahoo! Calendar.

Regards,

Robin

Yahoo! Mail Customer Care

Anyone found progress with this yet? I've been trying it since 3.0 arrived with no luck, same error about unable to verify. Followed all instructions to the letter, including the beta version of yahoo calendar. Haven't had the opportunity to try it on wireless yet though.

I can verify that yahoo calendar can be synced to iPhone’s calendar on an iPhone 3G running 3.0 software if you set up your yahoo calendar account over WIFI. Before I figured out I need to use WIFI I was trying to sync using 3G or Edge (whatever wireless that was active) and was getting really frustrated because I had 2 other yahoo email accounts working but couldn’t even get one yahoo calendar to sync.

iPhone’s calendar also seems to be unable to sync to yahoo calendar over 3G or Edge and only works over WIFI which is pretty lame in my opinion. I guess better than nothing… maybe they will fix this in the future?

First make sure you are using Yahoo! Calendar BETA. It’s painless to switch over and won’t change any of your calendar notes.

It may help to start all over and delete any previous attempts if you are having trouble syncing your calendar. Before putting in any account info go into “Settings”, then “WIFI” and turn on WIFI, while making sure you have working WIFI to connect to. Then go into “Mail, Contacts, Calendars”. Choose “Add Account…”, then “Other”, then “Add CalDAV Account”. For “Server” just put in “yahoo”. It will change to the proper address. Then put in the User Name and Password that you use to login to your yahoo calendar. Save and it should verify without you needing to do anything else. Exit “Settings”. Once you go into your “Calendar” all your yahoo calendar events should show up. Hope this helps.

A couple of notes from Yahoo. Glad so many of you are enjoying the push calendar functionality with your iphone.

- We've confirmed that there is an issue for some users in some network regions that prevents CalDAV sync setup on the iPhone on 3G or Edge. This does not seem to be Yahoo specific but for now the solution is to use wifi to get your events onto your calendar.
http://help.yahoo.com/l/us/yahoo/calendar/yahoocalendar/sync/sync-06.html

- A few users have reported that they were syncing fine when all of a sudden the events are not showing up on their iphone any longer. This is a known issue and a fix is going out in a few days to address this, don't worry, your events are safe.

This issue has been resolved. You can now sync using CalDAV over 3G or Edge networks. ATT has addressed the network glitch which was causing this.
I have tested that it works in both directions of Calendar updating.
YEAH!!!