Previous incidents
DDoS CosmicGuard Ashburn services are down
Resolved Oct 28, 2026 at 5:12am UTC
Our dark fiber connection is currently reporting low light levels. We'll be opening a ticket with our dark fiber provider to investigate and resolve the issue.
As a fallback, we had a GRE tunnel between Cosmic and our network that wasn't configured correctly due to recent service provider changes. This has now been corrected, and the network is back online through the GRE tunnel as a temporary solution.
We'll post another update here once traffic has been migrated back to our dark fiber con...
3 previous updates
Dallas CosmicGuard Network Instability
Resolved Oct 21, 2026 at 12:31pm UTC
Official after report from Cosmic.
At approximately 3:26 AM CST, one of our upstream transit providers had a brief interruption on its peering connection with our network. The connection was down for about 10 minutes. When it came back, it did not pass traffic correctly. Our inter-site links had automatically shifted back to that path, so connectivity between our sites was disrupted.
We applied a remedy to resolve the issue at approximately 4:22AM CST. We have identified the root cause and...
2 previous updates
Australia Upstream Provider Degraded
Resolved Oct 14, 2026 at 6:11am UTC
This is now resolved. We will provide a further update on this.
1 previous update
Ashburn GSL Instability
Resolved Oct 5, 2026 at 10:08pm UTC
There has been no further instability as of 6PM EDT. We will update this with an official update from GSL.
1 previous update
In House DDoS - GSL Virginia Network Flap
Resolved Sep 28, 2026 at 7:24pm UTC
GSL has confirmed that today’s network interruptions were caused by a separate issue within their network and were not related to the previously reported Cogent wave instability.
The issue involved a long-standing bug affecting GSL’s automated traffic management and routing systems. While troubleshooting the problem, one of their Ashburn routers experienced a forwarding process failure, which resulted in the brief connectivity impacts seen earlier today.
GSL has since identified the root ca...
4 previous updates
LON-5-02 is down
Resolved Sep 27, 2026 at 9:51pm UTC
LON-5-02 recovered, there was planned node restart.
1 previous update
CosmicGuard Flap in Virginia
Resolved Sep 24, 2026 at 1:25pm UTC
Per ComiscGuard:
"We're resolving a link failure on GTT's end in LAX which may be causing some issues with west coast connections."
1 previous update
CosmicGuard Down in London, UK.
Resolved Sep 9, 2026 at 3:51am UTC
Services are recovering. We're monitoring as things stabilize.
4 previous updates