How to increase resistance to Internet channel breaks? Will a VPN tunnel help?

Question

linux

Under the virtual machine in the home network, data transfer failures occur (no more than once every half hour). So I understand, the connection is torn. I observe under mono 3 and 4 versions: the usual transfer of a request to mysql (20 words, the request itself does not take longer than 5 seconds in the worst case, more often < 1c), put data in the rabbitMQ queue (a couple of kb) ... Stupidly repeating requests - not an option, sometimes they are executed (partially or entirely) and repetitions in the database are not needed.
How to diagnose a problem? VM -> host -> router(dlink 300) -> provider -> MySql database
Will any tunnel over it help?
P.S.
There are three servers with a good channel, they perform the same analytical task and send the results to the main server, there has never been such a problem. On a failed utility, mtr gives 10 minutes after pinging in 1 second - 0% lost. sometimes ping to server with base 140ms, sometimes 60ms

Answer 1

IMHO if the other three work fine - then on the server side. It is necessary to configure its network part in the first place. What kind of server - cloud or OS?
VPN won't help - it's a tunnel in an existing channel which is buggy. Hence VPN will be buggy too.