Texas is an area that has been having routing issues. There's been complaints in various forums about it (including TWC's own forums). You may be on a different gateway than you were before, ultimately changing your pathing to your game server. This has happened to us in Florence, SC---they've got us running all the way to Summerville now (like 95 miles away or something... 1.5-2hr drive depending on which way you go). We used to go to either Columbia or Myrtle Beach depending on which side of town we were in. That simple change in our first hop has been shown to inject lag spikes of up to 1 second or more during times of heavy load or really foul weather--when that combines with screwiness at the Canadian border as well, it makes the game unplayable until the congestion subsides or they put us on a different route.
Really wish they would just give Florence it's own localized gateway... been running cable internet in this town for almost 20 years (1M/256k Beta was in 1996). They've made their share of money off of us... time for them to invest in some decent @#$@#$ hardware.
Code:
C:\Windows\System32>tracert 199.91.189.25
Tracing route to 199.91.189.25 over a maximum of 30 hops
1 1 ms <1 ms <1 ms LPTSRV [10.10.100.1]
2 49 ms 23 ms 253 ms cpe-098-025-064-001.sc.res.rr.com [98.25.64.1]
3 28 ms 11 ms 15 ms cpe-024-031-198-005.sc.res.rr.com [24.31.198.5]
4 25 ms 26 ms 28 ms xe-7-0-0.rlghncpop-rtr1.southeast.rr.com [24.93.64.40]
5 43 ms 30 ms 32 ms 107.14.19.44
6 31 ms 32 ms 34 ms ae1.pr1.dca10.tbone.rr.com [107.14.17.202]
7 31 ms 31 ms 32 ms ix-17-0.tcore2.AEQ-Ashburn.as6453.net [216.6.87.149]
8 71 ms 54 ms 65 ms if-2-2.tcore1.AEQ-Ashburn.as6453.net [216.6.87.2]
9 60 ms 55 ms 57 ms 64.86.85.1
10 54 ms 54 ms 57 ms if-10-2.tcore1.TTT-Toronto.as6453.net [64.86.32.33]
11 53 ms 53 ms 54 ms if-9-9.tcore1.TNK-Toronto.as6453.net [64.86.33.25]
12 55 ms 64 ms 55 ms if-7-2.tcore1.W6C-Montreal.as6453.net [66.198.96.61]
13 60 ms 52 ms 54 ms 66.198.96.50
14 55 ms 52 ms 57 ms 192.34.76.2
15 54 ms 57 ms 56 ms 199.91.189.234
16 51 ms 54 ms 56 ms 199.91.189.25
Trace complete.
Just look at that lovely response time from the Summerville gateway (98.25.64.1).... 23ms to 253ms. That's .023 to .253 seconds just at that first hop. Wreaks havoc for DNS lookups sometimes (which my PS3 REALLY does not like). It isn't always like that... just got lucky and caught it on the first trace. I can ping it 100 times and only see 6 or 7 break the 100ms most the time.... but that is the freaking gateway, not a router halfway across the country. Under heavy traffic times, it will even time-out some. It's the first hop on the other side of my modem, and SHOULD be the fastest and most reliable one I get past my local network....but it's worse than the hops to Raleigh, NC and Ashburn, VA,... or even Montreal for that matter..