2 Messages
Ping spikes every 10 minutes, very frustrating [SOLVED]
My ping is spiking every 9 to 12 minutes. I'm using a brand-new XB6 and my PC is connected to it by cat6. The cables are snug, the coax is not overtightened, and everything seems like it's working ok. I've reset it many times. There are no other devices connected to the gateway and my speeds are decent (357 down, 72 up). This happens even when I have no programs running on my PC. I've tried calling support and they don't see any issues but in the pingplotter below you can see there's a couple failed BGP hops and you can almost set your watch by how regularly the ping spikes. The connection never hard drops though 
My exact same issue can be seen here https://forums.xfinity.com/conversations/your-home-network/ping-spikes-every-11-minutes/6408083ebf58aa7d3c22a16c I'm not sure why this thread got locked, it's pretty disheartening to come across someone with the same issue and the post is locked for no apparent reason
Edit: The PP comments are "Target name www.google.com changed from 2607:f8b0:4006:809::2004 to 2607:f8b0:4006:817::2004" (or other ipv6 addresses). I assume this is google load balancing because it doesn't seem to match up with the spikes
Edit2: disabled windows firewall, disabled router firewall, changed ipv4 dns to 1.1.1.1 and 1.0.0.1, restarted - no luck still
Edit3: hooked up a switch to the gateway and plugged a roommate's pc into it. He's having the same spikes
Edit4: DMed support (thank you @XfinityJamesC !). I think the problem might be related to a reserved IP or MAC address for an old XB6 belonging to a roommate who moved out last week. So some sort of discovery script is looking for the old device at our address and only finding the new one.
Edit5: Remote diagnostics inconclusive, dispatch scheduled, will update tomorrow
Edit6: SOLVED! A tech came out and said it was a transmitter/receiver problem. Honestly, I don't know hardly anything about this, but he said it was supposed to be 30 decibels and we were sending 50 db. He removed some unneeded coax splitters and re-terminated the coax lines (and maybe did something else, I had to take a work call so I missed some stuff). Anyway, it's fixed, and the tech was excellent. In the last two hours, I've had 20 ms average, with just one spike to 300 ms.
XfinityJamesC
Official Employee
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1.6K Messages
4 months ago
Greetings, @user_wn1cws! I hope your week has been treating you well. Thanks so much for taking a moment out of your busy day to leave a post on our community forum. I'm sorry to hear you're having issues with your service, but you have definitely come to the right place for assistance.
If you could send our team a direct message with your full name, the name listed on the account (if different), and the service address associated with your account, I'd be more than happy to look into this for you.
To send a Direct Message, please click on the “Direct Message” icon in the top-right corner of the screen, next to the bell icon, click the "New message" (pencil and paper) icon, then type or select "Xfinity Support". Type your message in the text area near the bottom of the window and press Enter to send your message and initiate a live session.
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EG
Expert
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106.2K Messages
4 months ago
@user_wn1cws @XfinityJamesC
Please circle back here and post any possible solutions for the issue here in these open forums so that all readers here may benefit from the exchange / info. This is in keeping with the spirit for which these public help forums were originally intended. Thank you.
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EG
Expert
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106.2K Messages
4 months ago
Thank you for updating your original post. Hope things hold up for you ! Good luck !
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