What is MT technical support (https://help.mikrotik.com/servicedesk/servicedesk) for?
I created a request.
They simply refused to fix the problem and forcibly closed the request.
The first step in debugging problems is to get a baseline - so we know where we are. The way to do this is taking out everything that has nothing to do with the problem - a router with minimal configuration.You do have a lot of other configuration on the device.
Any router in real life have some configuration. Your routers are not designed for this? Do they only work with very basic configuration? Why then there is no warning about this on the site?
I fully agree on that, they are very cooperative and ask you to do things to test so they can try to reproduce that in their test environment.Usually Mikrotik support tries very hard to solve problems. Sometimes we don't like what they say - like "it will be fixed in v7" - but they DO answer and try to fix things.
If the next problem solving step can't be done, then it will not go much farther than this. If support asks You to do something, there is a reason. Even that "stupid" question "Is it on?" is a valid one. The number of calls I got, that where just something turned off... even when they say "Of course is on!". No, not always.Paternoot
The way to do this is taking out everything that has nothing to do with the problem - a router with minimal configuration.
I already wrote why this is impossible.
I also tested on RB3011 with simple configuration and sent them the result, but they ignored it for contrived reasons.
Usually Mikrotik support tries very hard to solve problems.
maybe, if the problem is simple and they can solve it. if they cannot solve the problem, they keep it quiet or refuse to admit it.
1) I could setup such a thingOne iperf3 testing, from one PC to another.
to completely reproduce the issue, the following conditions must be met:
1) use GRE+IPsec tunnel, do not use fasttrack
2) minimum one side should be CCR
3) latency should be as much as possible
4) WAN speed should be as much as possible (100Mbps and higher)
5) both PC should be Windows
6) for testing: copy big file via shared folder