The Microsoft (News - Alert) Exchange Server TechForum is abuzz with problems related to iOS 6.1.

After its release on January 28, the iOS update began to cause problems for corporate Exchange servers. According to one forum member, iOS 6.1 created 50 GB of logs for a single database.

Apparently, an employee’s iPad started to create repeated logons on the Exchange server. After using exmon, the server admin found the device in connection with a markedly high session count.

Turning off Outlook did not fix the problem, but turning off the iPad stopped the repeated logons. Investigation showed that the problem originated in how Calendar invites were handled.

While exporting the calendar, deleting it from the iOS device and then recreating the calendar and importing solved the problem for some users, while other iOS users reported that the problem reoccurred after the fix.

9to5Mac has reported that AOL (News - Alert) servers have disabled corporate meeting management for iOS 6.1 devices because of the calendar glitch.

Businesses aren’t the only entities experiencing problems related to iOS 6.1. Vodafone (News - Alert) UK and 3 Austria have reported that their iOS customers have experienced difficulty connecting to the network for calls, texts and Internet access.

Vodafone sent a text encouraging its customers to avoid upgrading to iOS 6.1, and to wait for the next upgrade instead. Users with iPhone 4S seemed to have the most problems with the iOS update.

Apple (News - Alert) has released no fix for this issue yet. The company has also released no comment, although Vodafone said that “Apple is working on a solution” and that “these connection problems are intermittent.”

Apple has started seeding iOS 6.1.1 to developers, but developers report that the platform hasn’t changed much aside from updates to the Maps app. The beta is available for download in the iOS Development Center for registered developers.

Users of devices with iOS 6.1 have also reported significant battery drain and overheating issues.