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IRIS

Instructional & Research Information Systems

Wireless Networking

Wireless network service

Soda, Jacobs, and BWRC Network Maintenance, Tue. 5/17 5-7AM

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At 5AM on Tuesday, May 17th, we will be performing firmware upgrades on various Soda Hall network hardware. Wired networks in Soda and Jacobs Halls will be unavailable for approximately 15 minutes beginning at 5:00AM; BWRC networks will also be isolated from EECS, campus, and the Internet during this short period. Wireless networks in Soda Hall will experience a number of interruptions throughout the two hour period. We expect all connectivity will be restored by 7AM.

We do not expect significant interruption to most IRIS services hosted in 290 Soda.

This maintenance is complete as of 6:20AM. Please contact us at help@eecs.berkeley.edu if you have any questions or notice any lingering issues.

Cory Hall Network Maintenance, Mon. 5/16 5-7AM

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Between 5 and 7AM on Monday, May 16th, we will be performing firmware upgrades on various Cory Hall network hardware. Wired networks will be unavailable for approximately 15 minutes beginning at 5:00AM. Wireless networks will experience a number of interruptions throughout the two hour period. We expect all connectivity will be restored by 7AM.

We recommend system administrators check their systems on Monday morning after 7AM to verify they are working as expected. Some systems or services, such as nfs mounts, may need to be restarted.

This maintenance is complete as of 6:30AM. Please contact us at help@eecs.berkeley.edu if you have any questions, or notice any lingering issues.

Wi-Fi Compatibility Issues with Newer wpa_supplicant Versions, including Ubuntu 22.04

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We’ve confirmed an issue affecting Linux wireless clients using wpa_supplicant version 2.10, which includes the already-released Ubuntu 22.04. These clients are unable to connect to both eduroam and EECS-Secure due to an incompatibility in TLS negotiation methods.

We are working with our vendor to see if the eduroam and EECS-Secure authentication servers can be updated to comply with the relevant RFC. Some Linux distributions, including Ubuntu 22.04 and Fedora 36, are working on patches to address this issue from the client side.

Until a fix is deployed for your distro or our software, we suggest those affected by this issue employ the fix described in this link:
https://askubuntu.com/questions/279762/how-to-connect-to-wpa2-peap-mschapv2-enterprise-wifi-networks-that-dont-use-a-c/1405397#1405397

Our thanks to Alex Reinking, a member of the EECS community, who first reported this issue and also provided the fix linked above.
This post was updated on May 5th with newer information and to correct some errors.

Announcing Retirement of the EECS-Secure Wireless Network

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EECS-Secure Broadcast Ceases May 16

On Monday, May 16th, at 7AM we will cease public broadcast of the EECS-Secure wireless network. The network will continue to exist and devices already configured to use it will be able to continue to do so. However, it will not be available as a visible option to new devices which are not currently configured to connect to EECS-Secure. In other words, EECS-Secure will become a hidden SSID.

We recommend users of EECS-Secure begin transitioning to eduroam effective immediately. Information about how to connect to eduroam is available at:
https://technology.berkeley.edu/wi-fi

Please read the full post below for more information.

[Read more…] about Announcing Retirement of the EECS-Secure Wireless Network

Soda 3F Wi-Fi Outage, 4/4/22

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Wi-Fi networks for a large portion of Soda Hall third floor are offline since 7:20 this morning due to a switch failure. Staff are currently in transit to install a replacement.

Update 11:27: Wi-fi service in most areas was restored around 10:35. The remainder was restored at 11:25. Please contact help@eecs.berkeley.edu if you notice any ongoing issues.

EECS Network Maintenance, 2/25 6AM

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Tomorrow morning, 2/25 at 6AM, we will be rebooting the Soda Hall core router in order to apply a configuration change which will resolve an issue currently affecting a small portion of network traffic. As a result, we expect most EECS network paths will be unavailable for up to 15 minutes beginning at 6AM. Some systems or services (e.g. nfs) may have connectivity issues and may need to be restarted or rebooted after this maintenance.

[Read more…] about EECS Network Maintenance, 2/25 6AM

Firewall Migrations for Many Networks, 2/22 6AM

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At 6AM on Tuesday, February 22 at 6AM, we will be migrating a large number of networks to our new border firewall. This will affect the majority of wired networks in Soda, Cory, and Sutardja Dai Halls. EECS-Secure and EECS-PSK in all locations except BWRC will also be affected.

There will be a brief interruption to each of these networks as they are migrated. In addition, the ipv6 subnets used by EECS-Secure and EECS-PSK clients will change. You can read the full post below for details.

We encourage system administrators to test their systems on Tuesday morning after this maintenance is complete, to ensure their applications are being properly handled by the new firewall.

[Read more…] about Firewall Migrations for Many Networks, 2/22 6AM

BWRC Network Outage, 2/7

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BWRC networks are offline since around 13:10 today due to an apparently external cause. Staff are going onsite to investigate.

Update: The issue self-resolved around 13:48, but we believe this to have been an outage of the AT&T circuit which currently serves BWRC. We have plans to move this link to a more stable service later this week.