CS Network Status

This page lists both active and recently closed CS network alerts. If you would like more information about an alert, or if you have an issue you would like to report, send email to helpdesk [-at-] cs [dot] umd [dot] edu or call extension 52720.

Current Active Alerts

There are no current active alerts. Network operations are normal.

Have an issue that you need to report? Send email to helpdesk [-at-] cs [dot] umd [dot] edu.

Have a question about department IT services? Check out our FAQ.

Past Alerts

Updated Issue Summary Impact
03.22.2022 17:09 MariaDB server migration

We are migrating to a new primary MySQL server. Website access, DHCP, and new VPN connections will be affected during the migration.

 		Moderate
03.20.2022 12:43 Grades Server unavailable for short periods

We are investiagating a hardware issue with one of the servers that runs Grades. You may see short periods when the service is not responding.

 		Light
02.17.2022 11:43 Network Outage - Temporary router failure

An issue with NFS servers and Network routers made most of the servers offline. 

 		Moderate
01.19.2022 18:03 Minor updates to CS Network and Web sites - Jan 19, 5:00 pm-6:00 pm

Minor network disruption is expected for CS VPN connection and minor packet loss for off-campus traffic (NAT). Most IRB connections will NOT be impacted. Additionally, most CS websites would be unavailable for a brief of time. 

 		Light
01.19.2022 14:07 Core Router Firmware Updates - Dec 27, 11:30am-4pm - Minor packet loss possible

All department network traffic will experience minor packet loss. Multiple outages of up to 2.5 minutes may be expected as routing switches from one device to the other. 
 

 		Light
01.19.2022 14:05 Failed Redundant Power Supply - Unexpected outages possible

Replacing the failed network switch power supply did not resolve the issue - the new power supply failed as soon as the switch was returned to service. We are investigating further, but it is possible we may have an unexpected outage if the switch degrades further or if datacenter power redundancy is degraded.

 		Light
12.27.2021 10:56 Network Switch Replacement - Dec 27, 10am-11:30am - Website Outage

Network switch replacement to address failed power supply

CS Web sites will not be reachable.

Anyone trying to connect to a cs.umd.edu web site will receive a "banner" message stating that the site is undergoing maintenance.

 		Heavy
11.25.2021 20:51 Data center equipment moves - no outages expected

We are performing equipment moves in the data center. We are not exepecting any outages. Check department email announcement for more information.

 		Light
11.23.2021 20:32 NFS server restart. Delay in read and write operations until it is restarted.

NFS clients may experience delays in input/output operations while the NFS server is not ready.
10.12.2021 23:45 Mediawiki Upgrades

Mediawiki will be upgraded on Sunday, October 10, between 12 PM and 12 AM. This period is necessary to allow for complete testing of this major upgrade. Any individual site will not be down for more than a few seconds at a time.

 		Light