Xfinity did a two week upgrade to infrastructure in our area and since it has been completed, my SB8200 goes down 5 or 6 times a day, typical for 10 to 15 minutes each time. Xfinity is telling me that the modem may no longer be compatible with the newer signals. I have a tech coming, but not sure what that will do. keeping up with technology is always a moving target.
Answer
SB8200 Not Compatible with new Xfinity Signals
- The Many
Best answer by SURFboard Moderator
It appears that the modem is experiencing intermittent connectivity issues.
When the internet connection drops, does the modem reboot itself—such as turning off and then back on?
To help isolate the issue, try connecting a computer directly to the modem using an Ethernet cable. This will help determine whether the connection drops are occurring at the modem or through the router.
If you find that the internet connection drops even when connected directly to the modem, 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 connectivity 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.
- The Many
So, Xfinity tech was just here, and showed the performance stats for my house. Just awful. He replaced an outside splitter and about 40 feet of cable to the pole. Specs look much better. He checked the modem and said the 8200 should be just fine for now. Once 4.0 hits, may be a different story. Now it is a waiting game to see if the issue is fully resolved.
+41- Juggernaut
The SB8200 isn’t compatible with their “next gen” speeds but that only increased upload. So if you’re only on a gigabit plan, the sb8200 is fine.
- Wi-Fi Warriors
Could you please confirm the speed plan subscribed from your internet service provider?
- The Many
My plan is called Blast Internet. 800 Mbps download 35 Mbps upload. It seems to have settled in a bit, so might be ok for now.
- Wi-Fi Warriors
- Answer
It appears that the modem is experiencing intermittent connectivity issues.
When the internet connection drops, does the modem reboot itself—such as turning off and then back on?
To help isolate the issue, try connecting a computer directly to the modem using an Ethernet cable. This will help determine whether the connection drops are occurring at the modem or through the router.
If you find that the internet connection drops even when connected directly to the modem, 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 connectivity 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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