Using Cox cable, SB8200 modem works at 600mbps+ then slows to 20mbps. Rebooting the modem and checking the speed results in 600+mbps for less than a minute until it slows again.
Answer
SB8200 slows, is fast upon reboot, then slows again within seconds
- The Many
Best answer by SURFboard Moderator
To begin isolating the issue, please connect the SB8200 directly to a computer using an Ethernet cable via the Ethernet port. If the issue still persists after this setup then we recommend checking the cable signal levels within the modem. If the signal levels are out of the acceptable range, they can lead to the kind of slow speed issues you're experiencing.
When the signal levels are within the recommended range, your modem can maintain a stable, high-quality connection to the internet
Please refer to the link below for instructions on how to check your cable signal levels:
https://arris.my.salesforce-sites.com/consumers/articles/knowledge/SB8200-Cable-Signal-Levels
If you find that the signal levels are not within the recommended range, we suggest contacting your Internet Service Provider (ISP) to have them reviewed and adjusted as needed.
This topic has been closed for replies.
+41- Juggernaut
Got a screensnip of the cable connections page and event logs?
Those show the connection back to the isp and if you’re getting decreasing speed, it usually indicates a line issue
- Wi-Fi Warriors
- Answer
To begin isolating the issue, please connect the SB8200 directly to a computer using an Ethernet cable via the Ethernet port. If the issue still persists after this setup then we recommend checking the cable signal levels within the modem. If the signal levels are out of the acceptable range, they can lead to the kind of slow speed issues you're experiencing.
When the signal levels are within the recommended range, your modem can maintain a stable, high-quality connection to the internet
Please refer to the link below for instructions on how to check your cable signal levels:
https://arris.my.salesforce-sites.com/consumers/articles/knowledge/SB8200-Cable-Signal-Levels
If you find that the signal levels are not within the recommended range, we suggest contacting your Internet Service Provider (ISP) to have them reviewed and adjusted as needed.
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