I assume that I have an issue with my internet connection but I do not know how to investigate the source of the problem.
Symptoms:
Netflix dropped to low quality stream every few minutes
Today I got disconnected multiple times from live support (remote access like team viewer) always after 1-2 minutes
Regarding the graph of transferred bytes and packets of Interface 1 (this is where my cable modem is attached to) it could be related to the internet connection:
The cable modem is also a router but I changed it to bridge mode. The internet provider says they cannot see an issue and asked me to connect the network directly to the cable modem in router mode which I have tested with Netflix but the issue remained. I had the problem with Netflix on my PS4 and my LG TV until they recently updated the apps (which may have optimized the caching).
Since I do not have this drops in the graph for other installation with a similar setup (e.g. at my parents home) I am asking if this interface graph is reliable? Can you guide me on how I can investigate in this?
I am working with a RB450G (Routerboard FW 3.18 / RouterOS v6.23).
Try and open up a ping to multiple well known hosts/websites on the internet and also a ping to your internal router and your cable modem. Watch those pings for deviations (raises in ms or even drops). Also try to ping your internet gateway address (if your cable modem is in bridge mode and the Routerboard has the IP, it should know this).
From there you should be able to figure out if it’s an internal issue (all pings drop) or maybe an external issue (only the external pings stop, internal one’s continue without a drop).
To double check, after the above tests open some pings on the Routerboard to several hosts and your cable modem (internal and external IP) and do the same on your PC’s. Again this test will show you if you have an internal network problem or an external one.
p.s. If you have a Cisco Docsis cable modem your internal modem IP is most likely http://192.168.178.1/, but it depends on your network provider and how they configured it. If you really can’t find it (Search around on the internet) just ping the gateway behind the modem. If you are able to find the login, it can often provide good information such as connected cable channels, noise and Signal to Noise ratio’s, etc.
