I have fidium fiber 1gb download/upload speed, but the wifi download speed is only around 350mbs compared to 800mbs upload speed. Why is the wifi download speed so slow? How do I fix the slow download speed? I tried the ethernet connection and it shows 900mbs download and upload. The slow wifi download speed is tested on multiple speed tests websites (e.g. consolidated communications, xfinity, ookla, etc.).
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To check the speed level of the W21 SURFboard mAX
Mesh Wi-Fi, first, we need to connect the modem directly to a computer and check the speed levels by running a” speed test.net “ and check the speed is in the acceptable range.
If it is in the acceptable range, then click the below link to check on the slow speed of the W21
:http://arris.force.com/consumers/articles/General_FAQs/mAX-Routers-Network-Speed-Test
If not in the acceptable range, it's recommended to check the cable signal levels are within the range by contacting the manufacturer of the modem.
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