Customer Infrastructure Alerts

17min

Introduction
Alerts for customer owned infrastructure raise awareness about the following:
Radius Server Availability & experience
DNS Server Availability & experience
DHCP Server Availability & experience
Internet availability and experience
Below is the list of alerts raised in the Nile Portal for customer owned infrastructure.
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RADIUS Server Availability - Site Level
This alert is generated when a RADIUS server serving a specific customer site is unavailable.
Example Alert
RADIUS server with IP address 1.2.3.4 is unreachable from site Bangalore for 1 minute.
Recommended Customer Action
• Use Run Test in the Nile Portal device details page to test whether Radius server is reachable from the device subnets.
• Check for any firewall rules blocking radius server access from the device subnets
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RADIUS Server Availability - Customer Level
This alert is generated when a RADIUS server serving ALL sites of a customer is unavailable.
Example Alert
Radius server with IP address 10.129.1.165 is unreachable for 3 minutes. All sites utilizing Radius server are impacted.
Recommended Customer Action
• Verify that the RADIUS server at the indicated address is up and running, and no cable is unplugged or damaged.
• Use Run Test in the Nile Portal device details page to test whether Radius server is reachable from the device subnets.
• Check for any firewall rules blocking radius server access from the device subnets
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RADIUS Server certificate expiry
This alert is generated when the certificate in RADIUS server is about to expire.
Example Alert
RADIUS certificate for server 1.2.3.4 expiring in 20 days on 01:13:24. Please update the RADIUS server certificate before it expires to avoid failed authentication for end user devices.
Recommended Customer Action
• Update the RADIUS server certificate before it expires.
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Internet Availability
This alert is generated when Nile Service Block is unable to reach Nile Cloud Services. 
Example Alert
Nile Service Block has lost power or internet and is not reachable from the Nile cloud at site Bangalore for 20 minutes.
Recommended Customer Action
• Check the power at the Nile equipment
• Verify the cables are plugged into the upstream router, and that the cables are undamaged.
• Check the site's internet connectivity.
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DNS Availability - Site Level
This alert is generated when a DNS server is unavailable from a site.
Example Alert
DNS server with IP address 1.2.3.4 is unreachable from site Bangalore for 5 minutes.
Recommended Customer Action
• Use run test in the Nile Portal device details page to test whether DNS server is reachable from the device subnets.
• Check for any firewall rules blocking DNS server access from the device subnets
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DNS Availability - Customer Level
This alert is generated when a DNS server is unavailable from ALL sites of a customer.
Example Alert
DNS server with IP address 1.2.3.4 is unreachable for 10 minutes. All sites utilizing DNS server are impacted.
Recommended Customer Action
• Check for any firewall rules blocking DNS server access from the device subnets
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DHCP Availability - Site Level
This alert is generated when a DHCP server is unavailable from a site.
Example Alert
DHCP service with IP address 1.2.3.4 is unreachable from site Bangalore for 10 hours.
Recommended Customer Action
• Use run test in Nile Portal device details page to test whether DHCP server is reachable from the device subnets.
• Check for any firewall rules blocking DHCP server access from the device subnets
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DHCP Availability - Customer Level
This alert is generated when a DHCP server is unavailable from ALL sites of a customer.
Example Alert
DHCP server with IP address 10.129.1.165 is unreachable for 3 minutes. All sites utilizing DHCP server are impacted.
Recommended Customer Action
• Use run test in Nile Portal device details page to test whether DHCP server is reachable from the device subnets.
• Check for any firewall rules blocking DHCP server access from the device subnets
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AQI Violation
AQI measures the "quality" of the WiFi medium as detected by the Nile sensors. An alert is generated when the AQI falls below the expected threshold.
Note: If overall channel utilization is high due to low Wi-Fi AQI, the Access Point (AP) will automatically switch to a better channel.
If the air quality deteriorates due to channel load, the most likely root cause is Wifi interference from external access points.
Example Alert
Poor WiFi Air Quality detected due to WiFi interference from external access points at Bangalore/Bldg_1/Floor_1 for 10 minutes.
Recommended Customer Action
•  Please check the area for any external access points or devices that could be causing WiFi interference, such as nearby routers.
Note: AQI is only applicable to the 5GHz radio band.
If the air quality deteriorates due to noise-floor, the most likely root cause is external non-wifi source of interference. 
Example Alert
Poor WiFi Air Quality detected due to interference from external non-WiFi source at Bangalore/Bldg_1/Floor_1 for 8 minutes.
Recommended Customer Action
•  Please check the area for any non-WiFi devices that may be causing interference, such as cordless phones, non-Wi-Fi compliant wireless security cameras, or other types of wireless equipment that generate continuous signals within the Wi-Fi frequency bands.
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Example Alert	RADIUS server with IP address 1.2.3.4 is unreachable from site Bangalore for 1 minute.
Recommended Customer Action	• Use Run Test in the Nile Portal device details page to test whether Radius server is reachable from the device subnets. • Check for any firewall rules blocking radius server access from the device subnets

Example Alert	Radius server with IP address 10.129.1.165 is unreachable for 3 minutes. All sites utilizing Radius server are impacted.
Recommended Customer Action	• Verify that the RADIUS server at the indicated address is up and running, and no cable is unplugged or damaged. • Use Run Test in the Nile Portal device details page to test whether Radius server is reachable from the device subnets. • Check for any firewall rules blocking radius server access from the device subnets

Example Alert	RADIUS certificate for server 1.2.3.4 expiring in 20 days on 01:13:24. Please update the RADIUS server certificate before it expires to avoid failed authentication for end user devices.
Recommended Customer Action	• Update the RADIUS server certificate before it expires.

Example Alert	Nile Service Block has lost power or internet and is not reachable from the Nile cloud at site Bangalore for 20 minutes.
Recommended Customer Action	• Check the power at the Nile equipment • Verify the cables are plugged into the upstream router, and that the cables are undamaged. • Check the site's internet connectivity.

Example Alert	DNS server with IP address 1.2.3.4 is unreachable from site Bangalore for 5 minutes.
Recommended Customer Action	• Use run test in the Nile Portal device details page to test whether DNS server is reachable from the device subnets. • Check for any firewall rules blocking DNS server access from the device subnets

Example Alert	DNS server with IP address 1.2.3.4 is unreachable for 10 minutes. All sites utilizing DNS server are impacted.
Recommended Customer Action	• Check for any firewall rules blocking DNS server access from the device subnets

Example Alert	DHCP service with IP address 1.2.3.4 is unreachable from site Bangalore for 10 hours.
Recommended Customer Action	• Use run test in Nile Portal device details page to test whether DHCP server is reachable from the device subnets. • Check for any firewall rules blocking DHCP server access from the device subnets

Example Alert	DHCP server with IP address 10.129.1.165 is unreachable for 3 minutes. All sites utilizing DHCP server are impacted.
Recommended Customer Action	• Use run test in Nile Portal device details page to test whether DHCP server is reachable from the device subnets. • Check for any firewall rules blocking DHCP server access from the device subnets

Example Alert	Poor WiFi Air Quality detected due to WiFi interference from external access points at Bangalore/Bldg_1/Floor_1 for 10 minutes.
Recommended Customer Action	• Please check the area for any external access points or devices that could be causing WiFi interference, such as nearby routers. Note: AQI is only applicable to the 5GHz radio band.

Example Alert	Poor WiFi Air Quality detected due to interference from external non-WiFi source at Bangalore/Bldg_1/Floor_1 for 8 minutes.
Recommended Customer Action	• Please check the area for any non-WiFi devices that may be causing interference, such as cordless phones, non-Wi-Fi compliant wireless security cameras, or other types of wireless equipment that generate continuous signals within the Wi-Fi frequency bands.

Updated 05 Mar 2025

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