What factors are contributing to the increased latency in Tarana's Gigabit 1 (G1) fixed wireless access deployments since the latest firmware update?

Introduction

Tarana's Gigabit 1 (G1) fixed wireless access deployments are experiencing increased latency following a recent firmware update. This issue directly impacts user experience and service quality, potentially affecting customer satisfaction and retention. I'll approach this problem systematically, focusing on identifying the root cause, validating hypotheses, and developing both short-term fixes and long-term solutions.

Step 1

Clarifying Questions (3 minutes)

• Given the timing, I suspect the firmware update is directly related. Could you confirm when exactly the latency increase was first observed relative to the update rollout?

Why it matters: Establishes a clear timeline for cause-effect analysis. Expected answer: Within 24-48 hours of the update. Impact on approach: If confirmed, focuses investigation on update-related factors.

• I'm curious about the scale of the latency increase. What's the average latency now compared to pre-update levels?

Why it matters: Helps quantify the severity of the issue. Expected answer: 20-30% increase in average latency. Impact on approach: Guides prioritization of response and resource allocation.

• Considering potential segmentation, are all G1 deployments affected equally, or are there variations based on geographical location or deployment type?

Why it matters: Identifies potential environmental or configuration-specific factors. Expected answer: Varied impact across different deployments. Impact on approach: May lead to investigating deployment-specific variables.

• Has there been any correlation observed between increased latency and specific user activities or traffic patterns?

Why it matters: Could indicate whether the issue is general or use-case specific. Expected answer: Higher latency during peak usage times or with certain applications. Impact on approach: Might focus investigation on scalability or specific traffic handling.

• Were any changes made to the network infrastructure or configurations coinciding with the firmware update?

Why it matters: Rules out or includes non-firmware factors. Expected answer: No significant changes outside the firmware update. Impact on approach: Narrows focus to firmware-specific issues if confirmed.