I'm the sysadmin for REF035. We have the reflector running at a Datacenter in Seattle WA, located next to switches for all the major internet providers.
Intel running CentOS 7 x64
60 GB NVMe
2 GB Memory
4 TB Bandwidth
When the reflector was moved to the datacenter, we started experiencing issues with those using the OS4s. They experience packet losses from 8% up to 90%. All other hotspots work great, including OS 1s thru 3s. There is something that the OS4s are sending that are causing excessive packet losses on the network. These are from OS4 from all over the country and not to any specific location. I've ran tests with the OS4 and the OS4 Pro on this reflector as well as on REF001, and on REF001, there is no issue.
When I use the SharkLink app on my OS4 pro on REF035, there is no packet losses. I had others try this as well so anyone with an OS4 Pro using SharkLink on REF035, can communicate without packet loss.
When I ran the reflector on a bare metal reflector, using a mikrotik router, I had the same problem, but was able to correct the issue by increasing the receive buffer on the router. In the case of the datacenter, I have no control over the network. This is a commercial network and I find it very interesting that the OS4 and pro are having issues on this reflector running at a datacenter.
So I need your help to try to correct this issue. What can I provide you so that may be able to troubleshoot what is going on with the OS4s. It seems they are doing something different than all the other hotspots out there. The issue is unique to the OS4s only and they should work on any network. It has nothing to do with the local routers they connect to as I tested this by going to another reflector.
I have exported logs from my OS4 Pro on conversations from REF035 and REF001, and they don't tell me much other than there are a lot of dropped/missed packets on REF035. REF001 looks good.
I also did a tcpdump on the gateway port on the server at the datacenter, but I see nothing that stands out. These files are available if you think they will help.
Please let me know. i really want to get this fixed. We have a lot of OS4 owners who are not very happy and have gone back to pi-stars and earlier versions of the Openspots until this is corrected. I have also heard that there are issues on REF055, but have no data to provide. There may be others having problems, but I've not heard anything concrete yet.
Anything you can offer or do to help to get this product to work on any network is appreciated. I'm here to help and if you need anything I can provide, please let me know.
Perry - WB7NIL
REF035/WA7FW/WA7DR DStar System Administrator