Case Study: a major ISP uncovers Wi‑Fi CPE stability issues with QA Cafe CDRouter

a major ISP uncovers Wi‑Fi performance drops after 200 associations with QA Cafe

A major ISP was experiencing sudden, inexplicable drops in performance with their Wi-Fi CPE. They approached QA Cafe for assistance in reproducing and diagnosing these bizarre stability issues that occurred in the field but were not revealed by standard performance testing.

QA Cafe used its CDRouter solution, specifically its stability testing capabilities, to implement a fully automated testing process. This involved running long-term tests that interwove functional tests, like thousands of Wi-Fi associations, with performance throughput tests. The solution identified that a high volume of Wi-Fi associations was causing a dramatic performance drop after about 200 cycles. This automated approach allowed the ISP to discover and replicate in hours a pernicious issue that would have taken weeks or months to find in the field.