Hello.
Please try to do a traceroute towards one of the servers where you have this issue and post the results. Also is this a community server or official?
https://learn.microsoft.com/en-gb/windows-server/administration/windows-commands/tracert

Offical

Tracing route to 5.62.99.18 over a maximum of 30 hops

1 3 ms 1 ms 3 ms 10.23.192.1

2 4 ms 3 ms 2 ms gw-vlan45.edge1.springside.moda.ask4.net [213.143.11.249]

3 10 ms * * e1.tcw-r1.ask4.net [81.23.62.236]

4 9 ms 8 ms 8 ms core1.manc1.uk.ask4.net [213.143.0.162]

5 14 ms 14 ms 14 ms core1.lond2.uk.ask4.net [213.143.0.176]

6 14 ms 15 ms 14 ms et17-100.r4-lon1-gb.as5405.net [195.66.231.93]

7 30 ms 28 ms 30 ms r3-lon1-gb.as5405.net [94.103.180.19]

8 30 ms 29 ms 29 ms r6-fra1-de.as5405.net [94.103.180.75]

9 30 ms 30 ms 30 ms r6-fra3-de.as5405.net [94.103.180.90]

10 29 ms 30 ms 30 ms r4-fra3-de.as5405.net [94.103.180.55]

11 31 ms 29 ms 30 ms r2-fra3-de.as5405.net [94.103.180.53]

12 29 ms 45 ms 30 ms 45.153.82.19

13 * * * Request timed out.

14 30 ms 30 ms 30 ms 5.62.99.18

Trace complete.

Thank you.
Is this on a particular official server? Can you reliably reproduce this every day with exact same interval of disconnection?