My SB8200 loses connection to Xfinity more and more often. It happened a couple of times during the first months, but now nearly every day.
All lights are on.
The modem web UI works. Performing a reboot via the UI does not help. I have to power it off/on.
The signals look OK as per the Cable Signal Levels article.
Thanks!
Best answer by SURFboard Moderator
My SB8200 loses connection to Xfinity more and more often. It happened a couple of times during the first months, but now nearly every day.
All lights are on.
The modem web UI works. Performing a reboot via the UI does not help. I have to power it off/on.
The signals look OK as per the Cable Signal Levels article.
Thanks!
Could you please confirm your subscribed internet speed plan?
If the cable signal levels are within the acceptable range as outlined in the article below, we recommend reprovisioning the modem with your internet service provider.
https://arris.my.salesforce-sites.com/consumers/articles/knowledge/SB8200-Cable-Signal-Levels
It’s important to isolate the issue to determine whether the connection loss is occurring through the router or the modem. To check this, we recommend connecting a computer directly to the modem using an Ethernet cable and monitoring if the connection drops when connected directly to the modem.
+2Perhaps the device needs a firmware upgrade - ISP has to push this.
I also lose connectivity at random times and found that a daily power-cycle keeps things running. I use a smart plug that schedules a reboot: Power off at 3:54am daily, and power back on at 3:55am.
There’s also a device called Keep Connect that performs a connectivity check and can power-cycle if there’s no connectivity. I have not tried this one.
Thanks for the information.
Power cycling the modem every day may help, but I hope for a better way :-)
+2Unfortunately, if power cycling is the only thing that works, there is no better way.
My SB8200 loses connection to Xfinity more and more often. It happened a couple of times during the first months, but now nearly every day.
All lights are on.
The modem web UI works. Performing a reboot via the UI does not help. I have to power it off/on.
The signals look OK as per the Cable Signal Levels article.
Thanks!
Could you please confirm your subscribed internet speed plan?
If the cable signal levels are within the acceptable range as outlined in the article below, we recommend reprovisioning the modem with your internet service provider.
https://arris.my.salesforce-sites.com/consumers/articles/knowledge/SB8200-Cable-Signal-Levels
It’s important to isolate the issue to determine whether the connection loss is occurring through the router or the modem. To check this, we recommend connecting a computer directly to the modem using an Ethernet cable and monitoring if the connection drops when connected directly to the modem.
In fact, some signals were out of range. After close to 2 hours on chat and call with XFinity, they decided to send a technician. Who never showed up.
I remembered a few years ago XFinity brought other coax cables. I switched cables. Signals look better. I’ll wait a couple of weeks before thinking the issue might be resolved.
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