The Cory Hall network was offline from about 12:29 – 12:40 due to a malfunction in the building core switch. The issue has been resolved.
Wireless network service
A variety of areas have experienced network interruptions this evening, between 16:47 and 18:39:
- Cory 165 (server room)
- Cory 3F
- Cory 5F
- SDH Nanolab 5th floor
Wireless networks on the 7th floor of Soda Hall were offline beginning at 17:31 yesterday (8/18) due to a faulty switch PoE module. Unfortunately, we were not made aware of this until about 15:00 today.
We have replaced the faulty switch, and service was restored around 17:30.
During the day on Monday, Aug. 9, we will be performing maintenance on the network border between EECS and campus. No outage is expected.[Read more…] about Network Border Maintenance, Mon. 8/9
We will be performing maintenance on our border router at 6AM on Sunday, August 1st which will cause a 5-10 minute disruption of the network path in and out of the EECS network. During this time, all EECS networks will be severed from campus and the Internet.[Read more…] about Network Border Maintenance Sun. 8/1 6AM
Beginning Tuesday, May 18th, we will be performing wi-fi upgrades in all EECS network service areas (except BWRC and HMMB). Work will generally proceed floor-by-floor, with each building experiencing rolling wi-fi outages over a two to three day period. All wireless networks will be offline: EECS-Secure, EECS-PSK, AirBears2, eduroam, and CalVisitor.
Please see the schedule below for information specific to your building. If you are currently working on campus, and depend on the wireless network in these locations, please consider working from an alternate location during your building’s maintenance dates. We also recommend checking this post regularly in case of schedule changes.[Read more…] about Rolling Wi-Fi Outages, 5/18 – 5/28
This Friday, May 7th between 8 and 9AM, we will be performing scheduled maintenance of the EECS-PSK wireless network to prepare for our upcoming wi-fi refresh.
Update: This maintenance was completed without incident and the EECS-PSK network is back online. If you notice any issues, please email us at email@example.com.[Read more…] about EECS-PSK Scheduled Maintenance 5/7/21 8AM
All Cory Hall networks are offline since 23:24 last night, due to an apparent electrical issue in the Cory network core.
As we have not received an immediate response from facilities services, network staff are preparing to go onsite to investigate.
As of 2:21 pm, networking for Sutardja Dai, Blum, and Calvin Halls is offline. Staff are en route to campus for further investigation.
Update: network connectivity was fully restored at 6:00PM when certain hosts which were causing instability were removed from the network. We will follow up tomorrow with the sysadmins of these hosts to try and prevent future incidents.
From around 6:15 this morning, all wi-fi networks are offline in the following locations:
- Cory Hall 1F
- Cory Hall 3F
- Cory Hall 5F
- Sutardja Dai Hall 2-7F
- SDH NanoLab 5/6F
We have determined the root cause (a firmware bug) but are unable to resolve the issue remotely. We expect service to be restored later this morning.
Update: Service has been restored in all areas as of 10:45AM. Please email firstname.lastname@example.org if you notice any continuing issues.