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user_lz8cid
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Friday, March 13th, 2026 10:15 PM

Regional Routing Fault: MN/WI traffic detouring through Denver/San Jose (ibone bypass)

Issue Summary: I am located in the Roseville, MN / Wisconsin node. I am experiencing a "tromboning" routing issue where traffic destined for the East Coast (Chicago/DC) is being sent to Denver and San Jose before returning East, adding 60ms of unnecessary latency.

Proof of Local Low Latency (Chicago Hub): This confirms my local node and equipment are fine (11ms to Chicago). | Hop | IP Address | Latency | Location/Notes | | :--- | :--- | :--- | :--- | | 1 | 192.168.50.1 | <1 ms | Local ASUS Router | | 2 | 162.159.153.4 | 11 ms | Cloudflare Chicago Hub |

Proof of Broken Routing (OSRS Game Server): This shows the 80ms detour through Denver (Hop 10). | Hop | IP/Hostname | Latency | The Routing Error | | :--- | :--- | :--- | :--- | | 1-9 | [Local Comcast Nodes] | 11 ms | MN/WI Local Cluster | | 10 | be-39821-cs02.1601milehigh.co.ibone.comcast.net | 31 ms | DETOUR: Denver, CO | | 13 | den-bb2-link.ip.twelve99.net | 31 ms | Handover to Backbone | | 16 | akamai-ic-369547.ip.twelve99-cust.net | 62 ms | Sent further West | | 20 | oldschool22.runescape.com | 79 ms | Final Destination (High Latency) |

Request for Engineering: Please escalate this to the NOC (Network Operations Center) or the Regional Peering Team. This is a BGP routing misconfiguration at the Roseville aggregation hub. Local hardware and signal levels have been ruled out. I need my traffic to exit via the Chicago peering point (equinix-chi) as intended.

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2 hours ago

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user_5hjcih

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1 month ago

I'm in the same area and wanted to add that I am experiencing the same issue. I first noticed it last night Saturday March 13. Currently seeing about a 30ms increase in latency to Virginia and European servers. Normally I would ping 40-50ms to the east coast, but now it's more like 80ms. Hopefully this issue gets solved soon.

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XfinityDuron

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684 Messages

Hello there @user_5hjcih I hate to hear about your ping issues. Has this since been resolved?

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1 month ago

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user_4k5gof

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I had this same issue at first and it was resolved a few days after this original post was made, but as of April 23 10:20PM CST the issue has come back. When I run an MTR test to oldschool22.runescape.com traffic goes to be-39841-cs04.1601milehigh.co.ibone.comcast.net after leaving be-3401-ar-sp04.crosstown.mn.minn.comcast.net. Typically traffic goes through the Chicago ibone and not the Denver ibone. So I'm getting 70ms ping to Virginia servers instead of 30ms. This is negatively affecting my connection for anything I connect to that's east of me.

This happened after my internet went down for a couple minutes at 10:17 PM CST. When it came back a few minutes later my ping was noticeably worse. Is maintenance being done on the Chicago ibone servers? Hopefully this gets resolved quickly.

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2 days ago

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user_lz8cid

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OP here - same thing happened to us today again at same exact time. 10:17PM Central. 

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2 days ago

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XfinitySean

Official Employee

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630 Messages

Thanks for keeping us posted on your results. We'd still like to work towards getting this resolved by looking into the issue on our end as well. Please send us a direct message with your full name and service address, to get the ball rolling!

Here are detailed steps to direct message us:

• Click "Sign In" if necessary

• Click the "Direct Message” icon (upper right corner of this page)

• Click the "New message" (pencil and paper) icon

• Type "Xfinity Support" in the "to" line and select "Xfinity Support" from the drop-down list

• Type your message in the text area near the bottom of the window

• Press Enter to send your message

I am an Official Xfinity Employee.
Official Employees are from multiple teams within Xfinity: CARE, Product, Leadership.
We ask that you post publicly so people with similar questions may benefit from the conversation.
Was your question answered? Please, mark a reply as the Accepted Answer.tick

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2 hours ago

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XfinityKam

Official Employee

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168 Messages

1 month ago

@user_lz8cid Thank you for this very detail post, In order for us to review this we will need to run our own test and look into everything.

Please send us a direct chat message with your full name and complete service address to “Xfinity Support”. To do so, click on the chat icon located at the top right of this forum's page.

Here are the detailed steps to direct message us:

• Click "Sign In" if necessary

• Click the "Direct Message” icon (upper right corner of this page)

• Click the "New message" (pencil and paper) icon

• Type "Xfinity Support" in the "to" line and select "Xfinity Support" from the drop-down list

• Type your message in the text area near the bottom of the window

• Press Enter to send your message

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EG

Expert

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117.6K Messages

1 month ago

@XfinityKam 

Please circle back here and post any possible solutions for the issue here in these open public 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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