Installation and Maintenance Manual
14. DR-SBA Troubleshooting
Version 1.0.21
99
Microsoft Teams
14 DR-SBA Troubleshooting
This section describes DR-SBA troubleshooting issues.
14.1 Validate that your Tenant is enabled for DR-SBA
Enter the following command to validate if a new PowerShell commands are available:
Get-Command *TeamsSurvivableBranchAppliance*
14.2 Making sure that the user has been enabled for DR-
SBA
You can use the following process to ensure that the Teams user has been enabled for
DR-SBA support:
1.
Restart the Microsoft Teams client.
2.
Immediately after restart, download the MSTeams Diagnostics Log (see here for
instructions on how to collect them).
3.
Open the file with a name like MSTeams Diagnostics Log
12_9_2019__10_58_11_AM.txt and search for the string enableSurvivability
It should display a value of true like in the example below:
•
"enableSurvivability": true,
•
If it displays false validate that user was granted SBA policy.
14.3 Verify which SBA the client retrieves based on
Policy
Search the diagnostics log collected above for lines similar to the below:
2020-09-22T01:04:37.595Z Inf SurvivabilityService: [setAvailableAppliances] setting
appliances to [{"fqdn":"sba1.contoso.dk"}]
If you do not view lines similar to the above, this means that the user has not been granted
the correct policy or that the policy does not contain the expected SBA.
14.4 Verify whether the Client can Send Keep-alive
messages to the SBA
Search the diagnostics log collected above for lines similar to the below:
2020-09-22T01:04:37.595Z Inf SurvivabilityService: [setupApplianceLivenessChecks] 1
appliances have been pinged
[appliances=[{"fqdn":"sba1.contoso.dk","lastCheck":1600736677529,"isUp":true}]]
2020-09-22T01:04:37.582Z Inf SurvivabilityService: [setupApplianceLivenessChecks]
appliance reached successfully [status=200]
If you don’t see lines similar to the above, this means that Keep-alive messages that are
sent from the Teams client reach the SBA.
If you see lines similar to the below, this means that the Keep-alive messages that are sent
from the Teams client do not reach the SBA. Check firewall settings on the SBC, name
resolution and general network connectivity issues between the Teams client and the SBA.
2020-09-22T01:04:37.595Z Inf SurvivabilityService: [setupApplianceLivenessChecks] 1
appliances have been pinged
[appliances=[{"fqdn":"sba1.contoso.dk","lastCheck":1600736677529,"isUp":false}]]
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