Monitoring - Since the initial impact, Teraswitch’s Network Engineering team has identified the instability as a routing software failure triggered during a routine configuration change. We have removed the triggering condition and implemented safeguards to prevent recurrence. The network remains stable while we complete software upgrades and permanent remediation.
Our current timeline of events is that the instability was triggered at approximately 19:09:21–27 UTC on July 29th 2026, and lasted for ~5 minutes.
More updates and a complete RCA will be released in future updates.
Jul 31, 2026 - 14:33 UTC
Our current timeline of events is that the instability was triggered at approximately 19:09:21–27 UTC on July 29th 2026, and lasted for ~5 minutes.
More updates and a complete RCA will be released in future updates.
Jul 31, 2026 - 14:33 UTC
Identified - Teraswitch is currently working on mitigations related to this issue, although traffic issues have settled.
At this time, it appears a bulk of the high-capacity US to EU cables had a fault around the same time. Our NY to London path, which had been cut and resolved earlier today, went down again, and our Ashburn to Frankfurt path suffered an outage around the same time.
At this time, the network has stabilized and we are working to ensure any additional events are not as impactful to traffic.
Jul 29, 2026 - 19:35 UTC
At this time, it appears a bulk of the high-capacity US to EU cables had a fault around the same time. Our NY to London path, which had been cut and resolved earlier today, went down again, and our Ashburn to Frankfurt path suffered an outage around the same time.
At this time, the network has stabilized and we are working to ensure any additional events are not as impactful to traffic.
Jul 29, 2026 - 19:35 UTC
Investigating - Teraswitch is looking into general Internet Instability.
Jul 29, 2026 - 19:15 UTC
Jul 29, 2026 - 19:15 UTC
Public Services
Operational
API
Operational
Website (teraswitch.com)
Operational
Portal (console.tsw.io)
Operational
Global Network Services
Operational
Intra-Market Connectivity
Operational
Global External Internet
Operational
Internet Exchanges and Peering
Operational
Ultra-Low Latency Connectivity
Operational
PIT1 - Pittsburgh, PA
Operational
IAD1 - Ashburn, VA
Operational
EWR1 - Newark, NJ
Operational
EWR2 - Newark, NJ
Operational
MIA1 - Miami, FL
Operational
CHI1 - Chicago, IL
Operational
DAL1 - Dallas, TX
Operational
SLC1 - Salt Lake City, UT
Operational
LAX1 - Los Angeles, CA
Operational
SEA1 - Seattle, WA
Operational
VAN1 - Vancouver, Canada
Operational
LON1 - London, United Kingdom
Operational
AMS1 - Amsterdam, Netherlands
Operational
AMS2 - Amsterdam, Netherlands
Operational
AMS3 - Amsterdam, Netherlands
Operational
DUB1 - Dublin, Ireland
Operational
DUB2 - Dublin, Ireland
Operational
FRA2 - Frankfurt, Germany
Operational
SGP1 - Singapore
Operational
SGP2 - Singapore
Operational
TYO1 - Tokyo, Japan
Operational
TYO2 - Tokyo, Japan
Operational
TYO3 - Tokyo, Japan
Operational
Operational
Degraded Performance
Partial Outage
Major Outage
Maintenance