Derek Calderon

DNS Resolution Issues, 8/31/21

August 31, 2021 by Derek Calderon

We are currently seeing an issue where eecs.berkeley.edu, cs.berkeley.edu, banatao.berkeley.edu, and possibly other related DNS names are not resolvable from campus networks or from the Internet. As a result, many websites appear down and emails may bounce.

We have contacted IST, who operate the DNS servers that answer these requests from non-EECS networks, and they are investigating.

Name resolution from EECS networks using EECS DNS resolvers is working properly.

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Network Maintenance Sun. 8/29 6AM

August 25, 2021 by Derek Calderon

We will be performing a needed firmware upgrade on the Soda Hall core router at 6AM on Sunday, August 29th. This will cause a disruption of all traffic in and out of the EECS network, as well as traffic between the various Soda Hall networks. We expect this outage will last for between 5 and 20 minutes.

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Network Border Maintenance, Mon. 8/9

August 5, 2021 by Derek Calderon

During the day on Monday, Aug. 9, we will be performing maintenance on the network border between EECS and campus. No outage is expected.

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Network Border Maintenance Sun. 8/1 6AM

July 29, 2021 by Derek Calderon

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.

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Soda 4F Network Outage 7/27

July 27, 2021 by Derek Calderon

Part of the Soda 4th floor wired network (primarily RISE Lab) was offline today between 15:34 and 15:46 due to a misbehaving private network. The private network has been temporarily disabled and service has been restored.

Cory Hall Network Outage 7/27

July 27, 2021 by Derek Calderon

The Cory Hall network was offline from 15:16 – 15:34 this afternoon due to a malfunction in the building core switch. The issue has been resolved.

Rolling Wi-Fi Outages, 5/18 – 5/28

May 11, 2021 by Derek Calderon

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.

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EECS-PSK Scheduled Maintenance 5/7/21 8AM

May 4, 2021 by Derek Calderon

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 help@eecs.berkeley.edu.

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Cory Hall Network Outage 4/26

April 26, 2021 by Derek Calderon

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.

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Wi-Fi Outage, Cory and Sutardja Dai Halls

November 7, 2020 by Derek Calderon

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 help@eecs.berkeley.edu if you notice any continuing issues.