Packet loss on server hosted by your-server.de

For a while now, me and one of my buddies (lets say "buddy 1") have had packet loss when connecting to a specific server, while "buddy 2" never has packet loss in the same game. Today we connected to this server twice and had packet loss both times., while "buddy 2" had no issues.

Another time, I used my phones hotspot and didn't have packet loss on this server, while "buddy 1" was affected by it. So it is obviously caused by a network issue. However: pinging the server directly never gives any of us any lost packets. Traceroutes show that the internal routing at hetzner.com is always a bit different, but we can't find a common hop that seems to cause the issue.

Playing with these ISPs gave packet loss on the server:

• Telekom Deutschland
• Wingo (Fiber)

While playing the game with these ISPs didn't give packtet loss:

• Kabel Deutschland
• Swisscom (LTE)

This is the IP of the server in question: 148.251.75.175 (static.175.75.251.148.clients.your-server.de)

Here are some traceroutes of clients that either do, or do not experience packet loss when playing on this server.

Telekom Deutschland (is affected by packet loss)

  1    <1 ms    <1 ms    <1 ms  [redacted]
  2     9 ms     8 ms    8 ms  p50928109.dip0.t-ipconnect.de [80.146.129.9]
  3     *        *        *     Request timed out.
  4     *        *        *     Request timed out.
  5     *        *        *     Request timed out.
  6     *        *        *     Request timed out.
  7    19 ms    18 ms    18 ms  ex9k2.dc11.fsn1.hetzner.com [213.239.229.10]
  8    19 ms    18 ms    17 ms  static.175.75.251.148.clients.your-server.de [148.251.75.175]

Wingo (is affected by packet loss)

  1    <1 ms    <1 ms    <1 ms  [redacted]
  2    <1 ms    <1 ms    <1 ms  [redacted]
  3     4 ms     3 ms     5 ms  138.187.22.41
  4     2 ms     2 ms     2 ms  172.25.17.84
  5     2 ms     2 ms     2 ms  178.238.168.45.ipv4.net.wingo.ch [178.238.168.45]
  6     2 ms     2 ms     2 ms  i79zhb-015-ae5.bb.ip-plus.net [193.5.122.0]
  7    30 ms     3 ms     2 ms  i79tix-025-ae11.bb.ip-plus.net [138.187.130.38]
  8     7 ms     7 ms     *     100ge0-36.core2.zrh3.he.net [184.104.193.133]
  9     6 ms     7 ms     7 ms  100ge8-1.core1.zrh2.he.net [72.52.92.129]
 10     *        *     2950 ms  100ge0-66.core3.fra1.he.net [184.105.65.30]
 11     *       10 ms    10 ms  decix2-gw.hetzner.com [80.81.193.164]
 12    25 ms    12 ms    12 ms  core24.fsn1.hetzner.com [213.239.203.150]
 13    12 ms    12 ms    13 ms  ex9k2.dc11.fsn1.hetzner.com [213.239.229.14]
 14    12 ms    12 ms    12 ms  static.175.75.251.148.clients.your-server.de [148.251.75.175]

Kabel Deutschland (is not affected by packet loss)

  1    <1 ms    <1 ms    <1 ms  [redacted]
  2    13 ms     9 ms    10 ms  ip4d1665fe.dynamic.kabel-deutschland.de [77.22.101.254]
  3    10 ms    10 ms     9 ms  83-169-175-206-isp.superkabel.de [83.169.175.206]
  4    11 ms    13 ms    13 ms  ip5886c222.static.kabel-deutschland.de [88.134.194.34]
  5    12 ms    12 ms     9 ms  145.254.3.136
  6     *        *        *     Request timed out.
  7     *        *        *     Request timed out.
  8    16 ms    20 ms    16 ms  static.213-133-113-9.clients.your-server.de [213.133.113.9]
  9     *       23 ms    21 ms  core24.fsn1.hetzner.com [213.239.229.78]
 10    22 ms    22 ms    21 ms  ex9k2.dc11.fsn1.hetzner.com [213.239.229.14]
 11    21 ms    19 ms    31 ms  static.175.75.251.148.clients.your-server.de [148.251.75.175]

Swisscom (LTE) (is not affected by packet loss)

  1     2 ms     1 ms     1 ms  [redacted]
  2     *        *        *     Request timed out.
  3     *        *        *     Request timed out.
  4     *        *        *     Request timed out.
  5     *        *        *     Request timed out.
  6     *        *        *     Request timed out.
  7     *        *        *     Request timed out.
  8    27 ms    46 ms    30 ms  i69lss-015-ae2.bb.ip-plus.net [193.134.95.230]
  9    34 ms    26 ms    27 ms  i68gem-015-ae1.bb.ip-plus.net [138.187.130.162]
 10    91 ms     *       37 ms  e0-33.core2.gva1.he.net [184.104.203.61]
 11     *       49 ms    38 ms  port-channel6.core2.zrh3.he.net [184.104.203.57]
 12    27 ms    42 ms    77 ms  100ge8-1.core1.zrh2.he.net [72.52.92.129]
 13     *        *     2722 ms  100ge0-66.core3.fra1.he.net [184.105.65.30]
 14     *       30 ms    74 ms  decix2-gw.hetzner.com [80.81.193.164]
 15     *        *        *     Request timed out.
 16    43 ms    42 ms    44 ms  ex9k2.dc11.fsn1.hetzner.com [213.239.229.10]
 17    39 ms    44 ms    39 ms  static.175.75.251.148.clients.your-server.de [148.251.75.175]

Please remember, pinging 148.251.75.175 never gives any of us any packet loss (even when pinging 10x a second). So while the problem definitely is affected by which network the client is coming from (see "buddy 2" not experiencing packet loss in the same game), the packet loss cannot be reproduced by spamming the IP with icmp ping packets. Any ISP that looks at this will firmly put any blame on whoever is hosting 148.251.75.175.

Desired outcome of this post: EA contacts your-server.de about the server with 148.251.75.175 on Monday, 3 January 2022 (CET) 21:00 to determine the cause of this issue.

I'll be happy to answer any questions that help with troubleshooting this further.