Routing/Peering Issue – Packet Loss Between Comcast and Zayo (Affects NBA 2K26 Servers on PS5)

I’m seeing persistent connection failures with NBA 2K26 on PS5, even though my overall internet connection is excellent.
All other online services (PlayStation Network, Netflix, etc.) work perfectly.
The issue only occurs on Comcast—if I switch my PS5 to a 5G mobile hotspot, the game connects instantly.

This looks like a routing/peering problem between Comcast and Zayo in the Chicago area (specifically around the 350 E Cermak hand-off).
I’ve attached my traceroute below which clearly shows packet loss after the Comcast → Zayo transition.

Environment

• Location: Chicago IL (60657)

• Wired Ethernet, NAT Type 2

• 855 Mbps down / 40 Mbps up

• IPv6 disabled, using Cloudflare DNS (1.1.1.1 / 1.0.0.1)

• All other applications stable and fast

traceroute to nba2k.com (192.81.242.63), 30 hops max, 60 byte packets
 1  _gateway (10.0.0.1)  1.734 ms  2.065 ms  2.169 ms
 2  96.120.25.1 (96.120.25.1)  11.646 ms  11.556 ms  11.490 ms
 3  po-304-1221-rur501.area4.il.chicago.comcast.net (96.110.167.37)  11.373 ms  10.855 ms  11.202 ms
 4  po-500-xar01.area4.il.chicago.comcast.net (96.216.210.197)  11.137 ms  11.012 ms  16.851 ms
 5  be-314-arsc1.area4.il.chicago.comcast.net (96.108.34.137)  17.709 ms  18.169 ms  18.405 ms
 6  be-32231-cs23.350ecermak.il.ibone.comcast.net (96.110.40.57)  19.832 ms be-32221-cs22.350ecermak.il.ibone.comcast.net (96.110.40.53)  18.630 ms *
 7  be-2213-pe13.350ecermak.il.ibone.comcast.net (96.110.32.90)  17.345 ms be-2113-pe13.350ecermak.il.ibone.comcast.net (96.110.32.86)  17.538 ms be-2313-pe13.350ecermak.il.ibone.comcast.net (96.110.32.94)  19.134 ms
 8  * * *
 9  ae5.mcr1.ord7.us.zip.zayo.com (64.125.25.42)  16.777 ms  18.182 ms  18.042 ms
10  ae3.ter2.ord7.us.zip.zayo.com (64.125.19.95)  16.720 ms  16.601 ms  16.853 ms
11  * 208.185.3.30.IDIA-385485-901-ZYO.zip.zayo.com (208.185.3.30)  17.956 ms  46.733 ms
12  * * *
13  * * *
14  * * *
15  * * *
16  * * *
17  * * *
18  * * *
19  * * *
20  * * *
21  * * *
22  * * *
23  * * *
24  * * *
25  * * *
26  * * *
27  * * *
28  * * *
29  * * *
30  * * *

Summary

• No packet loss or latency within Comcast’s own network.

• Loss begins after the Zayo hand-off near hop 11.

• Same pattern appears on multiple traces to nba2k.com and prod.live-services.2k.com.

• The behavior is consistent across days and reproduces 100 % of the time.

Could a moderator please escalate this to the regional network engineering/NOC team for review of the Comcast–Zayo peering route in Chicago?
This appears to be a mid-network issue affecting multiple gamers in the area, not a local wiring or equipment fault.