[KTW/WAW] COGENT – Outage – Warsaw, Krakow, Katowice, Vilnius and Riga – 2025-09-05

************************ UPDATE 1 ************************

Dear Cogent Customer,

Please note we have recently an official ETR for both of the mentioned
fiber cuts.

The fiber cut impacting Warsaw – Bratislava route, has an initial ETR of
18h00 CEST, while the fiber cut impacting Warsaw – Hamburg route, has an
initial ETR of 23h30 CEST.

As soon as we have any other relevant update, we will let you know.

Best Regards

***************************************************************

Dear Cogent Customer,

As a result of two simultaneous and unrelated fiber cuts in our backbone
network, customers whose service is delivered in Warsaw, Krakow,
Katowice, Vilnius and Riga markets, might notice a significant service
performance decrease.

The first fiber cut, is impacting Warsaw – Bratislava span, and is
ongoing since around 11h00 CEST. Please note that we don’t have an ETR
for such fiber cut yet, but fiber provider has confirmed restoration
actions are being expedited.

The second fiber cut, is impacting Warsaw – Hamburg span, and is ongoing
since 12h47 CEST, the fault has been reported to the fiber provider
immediately, and we are pending a feedback from them.

Impacted Region: Warsaw, Krakow, Katowice, Vilnius and Riga
Service address: ADAMSKIEGO 7
KATOWICE 40-069
PL

KRÓLEWSKA 57
KRAKÓW 33-332
PL

AL JEROZOLIMSKIE 65/79
WARSAW 00-697
PL
Order(s) Impacted: 3-001226413, 3-001226415, 3-001226416, 3-001226417,
3-001226412
Outage Ticket: EU305403667

We will keep you updated as any relevant update is available.

We apologize for all the inconveniences.

Best Regards

Cogent Customer Support Europe
eu-support@cogentco.com

ES: +34 91 102 2501
DE: +49 69 299 896 96
FR: +33 1 49 03 1818