Incident detail

Multiple products in us-central1-b are experiencing network service degradation.

Resolved incidentMajor1 affected service1 region: us-central1

Provider

Timeline window

Sep 1, 2026, 2:44 PM UTC to Sep 1, 2026, 6:52 PM UTC

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Timeline

Incident updates

Every update Google Cloud posted, oldest to newest, exactly as it appeared on their official status page.

Investigating
Sep 1, 2026, 4:03 PM UTC
Summary
Multiple products in us-central1-b are experiencing network service degradation.
Description
We are experiencing a networking issue starting Tuesday, 2026-09-01 07:41 US/Pacific.
The issue is affecting a portion of the us-central1-b zone. The remaining zones in the region are unaffected.
Our network engineering team has put in mitigations and we are seeing services starting to recover.
We will provide more information by Tuesday, 2026-09-01 09:30 US/Pacific with current details.
We apologize to all who are affected by the disruption.
Customer Symptoms
Customers are experiencing elevated packet loss and errors.
- BigQuery
- Cloud Dataflow
- Cloud SQL
- App Engine
- Cloud Run
- AlloyDB
- Cloud Bigtable
- Cloud Spanner
- Compute Engine
- Cloud VPN
- Cloud Interconnect
- Cloud NAT
- Cloud Filestore
- Cloud Hybrid Connectivity
- Virtual Private Cloud
- Google Kubernetes Engine
- Looker (Google Cloud core)
Workaround
- Customers with service layer retries may see successful completions as only a portion of the zone is affected.
- Customers that are severely affected and have services available in alternate zones can failover to alternate zones.
Monitoring
Sep 1, 2026, 4:19 PM UTC
Summary
Multiple products in us-central1-b are experiencing network service degradation.
Description
The issue is affecting a portion of the us-central1-b zone. The remaining zones in the region are unaffected.
Following network-level mitigation efforts, the underlying network infrastructure has fully recovered. Product engineering teams across Cloud are currently validating the recovery status of individual services.
We will provide more information by Tuesday, 2026-09-01 10:00 US/Pacific with current details.
Customer Symptoms
Customers are experiencing elevated packet loss and errors.
- BigQuery
- Cloud Dataflow
- Cloud SQL
- App Engine
- Cloud Run
- AlloyDB
- Cloud Bigtable
- Cloud Spanner
- Compute Engine
- Cloud VPN
- Cloud Interconnect
- Cloud NAT
- Cloud Filestore
- Cloud Hybrid Connectivity
- Virtual Private Cloud
- Google Kubernetes Engine
- Looker (Google Cloud core)
- Apigee
- Google SecOps SOAR
Workaround
- Customers with service layer retries may see successful completions as only a portion of the zone is affected.
- Customers that are severely affected and have services available in alternate zones can failover to alternate zones.
Monitoring
Sep 1, 2026, 5:09 PM UTC
Summary
Multiple products in us-central1-b are experiencing network service degradation.
Description
The issue is affecting a portion of the us-central1-b zone. The remaining zones in the region are unaffected.
Most of the products have recovered and the engineering team is still validating a few remaining product impacts.
We will provide more information by Tuesday, 2026-09-01 11:00 US/Pacific with current details.
Customer Symptoms
Customers are experiencing elevated packet loss and errors.
- Cloud Run
- App Engine
Following products have recovered
- BigQuery
- Cloud Dataflow
- Cloud Bigtable
- Compute Engine
- Cloud Hybrid Connectivity
- Cloud Filestore
- Virtual Private Cloud
- Cloud Spanner
- Google Kubernetes Engine
- Cloud SQL
- AlloyDBCloud VPN
- Apigee
- Cloud Interconnect
- Cloud NAT
- Looker (Google Cloud core)
- Google SecOps SOAR
- Cloud Firestore
Workaround
- Customers with service layer retries may see successful completions as only a portion of the zone is affected.
- Customers that are severely affected and have services available in alternate zones can failover to alternate zones.
Monitoring
Sep 1, 2026, 6:01 PM UTC
Summary
Multiple products in us-central1-b are experiencing network service degradation.
Description
The issue is affecting a portion of the us-central1-b zone. The remaining zones in the region are unaffected.
Most of the products have recovered and the engineering team is still validating a few remaining product impacts.
Routine network maintenance triggered issues in us-central1-b. We have recovered the network capacity that was impacted and restored all zonal and regional services. Maintenance in the region has been halted while proactive audits are carried out.
We will provide more information by Tuesday, 2026-09-01 12:30 US/Pacific with current details.
Customer Symptoms
Customers are experiencing elevated packet loss and errors.
- Cloud Run
- App Engine
Following products have recovered
- BigQuery
- Cloud Dataflow
- Cloud Bigtable
- Compute Engine
- Cloud Hybrid Connectivity
- Cloud Filestore
- Virtual Private Cloud
- Cloud Spanner
- Google Kubernetes Engine
- Cloud SQL
- AlloyDBCloud VPN
- Apigee
- Cloud Interconnect
- Cloud NAT
- Looker (Google Cloud core)
- Google SecOps SOAR
- Cloud Firestore
Workaround
- Customers with service layer retries may see successful completions as only a portion of the zone is affected.
Monitoring
Sep 1, 2026, 6:36 PM UTC
Summary
Multiple products in us-central1-b are experiencing network service degradation.
Description
The issue is affecting a portion of the us-central1-b zone. The remaining zones in the region are unaffected.
Most of the products have recovered. The impacted products Cloud Run and App Engine are also seeing recovery and the errors have lowered pre-incident levels. Engineering continues to monitor and validate.
Routine network fabric path maintenance triggered unexpected issues in two clusters in us-central1-b. We have recovered the network capacity that was impacted and restored all zonal and regional services. Maintenance in the region has been halted while proactive audits are carried out.
We will provide more information by Tuesday, 2026-09-01 12:30 US/Pacific with current details.
Customer Symptoms
Customers are experiencing elevated packet loss and errors.
- Cloud Run
- App Engine
Following products have recovered
- BigQuery
- Cloud Dataflow
- Cloud Bigtable
- Compute Engine
- Cloud Hybrid Connectivity
- Cloud Filestore
- Virtual Private Cloud
- Cloud Spanner
- Google Kubernetes Engine
- Cloud SQL
- AlloyDBCloud VPN
- Apigee
- Cloud Interconnect
- Cloud NAT
- Looker (Google Cloud core)
- Google SecOps SOAR
- Cloud Firestore
Workaround
- Customers with service layer retries may see successful completions as only a portion of the zone is affected.
Resolved
Sep 1, 2026, 7:12 PM UTC
Summary
Multiple products in us-central1-b experienced network service degradation.
Description
The issue was affecting a portion of the us-central1-b zone. The remaining zones in the region were unaffected.
All the impacted products have recovered.
From preliminary analysis, routine network fabric path maintenance triggered unexpected issues in one cluster in us-central1-b. We have recovered the network capacity that was impacted and restored all zonal and regional services. Maintenance in the region has been halted while proactive audits are carried out.
We thank you for your patience while we worked on resolving the issue.
Customer Symptoms
Customers experienced elevated packet loss and errors.
Workaround
The issue has been mitigated.

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