I am hosting 3 VM's limited at 10Mbps all together. Each VM is limited to 1Mbps via proxmox. I have noticed if i have these relays running it kills a 10Gbps fiber optic line. All the way down to 50Mbps or worse depending on what the time of day. Any idea what i can try? I noticed this happen over the past few months maybe its increased usage on the relays not sure. According to TOR relay search the demand has spiked recently. I wondering why/how it could bypass the limits on both proxmox and pfsense.
I am experiencing a similar effect since a few months, often without filling even half of the available bandwidth. Like what Sebastian suggested earlier, I suspect the horrible quality ISP-supplied modem/router. It’s not like the bandwidth is actually used: in fact during the interruptions it falls to a negligible level. The situation is more about packets being dropped or experiencing extremely large processing times (hundreds to thousands msecs).
If your situation is similar and you do not need the router function, does switching to bridge mode help in any way?