Why game latency fluctuates aggressively during day?

Question

I play World of Warcraft (uses TCP) from India, on a server located in France. I get 180-200ms in-game past midnight which is quite comfortable for me, and unfortunately the best I can get due to the distance. During daytime however, latency is anywhere between 400-2k ms even though a ping via cmdprompt still shows ~200ms at the same time. Traceroute :

    C:\Users\Ace>tracert 37.187.172.200

Tracing route to ns372348.ip-37-187-172.eu [37.187.172.200]
over a maximum of 30 hops:

  [snip]
  3     *       16 ms     *     1.1.1.1
  4    30 ms    25 ms    29 ms  4.231.88.202.asianet.co.in [202.88.231.4]
  5    73 ms    73 ms    73 ms  125.19.22.85
  6   176 ms   178 ms   181 ms  182.79.222.169
  7     *        *        *     Request timed out.
  8   208 ms   194 ms   186 ms  be11-1188.rbx-g2-a9.fr.eu [91.121.128.88]
  9   194 ms   219 ms   217 ms  be100-1120.fra-5-a9.de.eu [37.187.232.96]
 10   229 ms   203 ms   204 ms  be1-1171.sbg-g2-a9.fr.eu [37.187.232.94]
 11   205 ms   214 ms   210 ms  vl20.sbg-g2-a75.fr.eu [178.33.103.203]
 12   190 ms   215 ms   223 ms  be50-7.sbg-4b-a9.fr.eu [188.165.9.76]
 13   205 ms   206 ms   203 ms  ns372348.ip-37-187-172.eu [37.187.172.200]

Trace complete.

Pathping :

C:\Users\Ace>pathping 37.187.172.200

Tracing route to ns372348.ip-37-187-172.eu [37.187.172.200]
over a maximum of 30 hops:
  [snip]
  3     *     1.1.1.1
  4  4.231.88.202.asianet.co.in [202.88.231.4]
  5  125.19.22.85
  6     *        *        *
Computing statistics for 125 seconds...
            Source to Here   This Node/Link
Hop  RTT    Lost/Sent = Pct  Lost/Sent = Pct  Address
  [snip]
  3   13ms     0/ 100 =  0%     0/ 100 =  0%  1.1.1.1
                                2/ 100 =  2%   |
  4   13ms     2/ 100 =  2%     0/ 100 =  0%  4.231.88.202.asianet.co.in [202.88.231.4]
                                1/ 100 =  1%   |
  5   75ms     3/ 100 =  3%     0/ 100 =  0%  125.19.22.85

Trace complete.

The issues I see here are the packet losses, and the long-winded route my connection goes through. Also perhaps the difference in TCP vs ICMP latencies? Please advice if these are what causes the huge lag I face in-game, and if so, what I (or my ISP) can do about it. I'm still very new to all this, so kindly explain in detail. Thank you!

PS: I've read this post prior to writing mine and while it was informative, I was unable to find an actual solution to the problem.

Answer 1

The problem could be network congestion. India is 3.5 hours ahead of France. Midnight in India would be about 9 PM in France, which is when people are already starting to go to bed. 2 PM in India is about 11 AM in France, which is when people are at work and using their computers.

Answer 2

Like Moshe mentioned, you're connecting during a peak bandwidth time for your ISP.

It looks like ACT broadband is a fast and affordable ISP in India.

http://www.techverse.net/top-5-ultra-fast-download-speed-and-affordable-internet-service-providers-in-india/

For a much faster connection up to 1GB/s, check out Startup Village: https://www.quora.com/What-is-the-fastest-Internet-speed-in-India

If you're using Wifi, either move the router/PC closer to each other, or try a hard-wire ethernet connection.

For info about your connection to your ISP, do an ookla internet speed test