ISU Network folks will be doing maintenance on Sunday, 25 September 2016. They expect a number of outages during the day as they replace routers, etc. So availability to the IEM will be up and down during the day with actual outages not expected to last for too long.

Update 10 PM 26 September: So firstly, an appology for the prolonged issues that occured. It did not help the situation that I was traveling and could not connect myself to the IEM servers during the outage. Full network service was restored around about noon today. On Sunday, the 1 hour initial outage in the morning was known and expected. What happened after about 11 AM was not. There was some router config issue that was preventing returning traffic from the IEM to reach the clients during this time. When these types of issues happen, I post updates to my @akrherz Twitter account.