Network Traefik on specific port

I recently started collecting metrics to InfluxDB.

I am trying to diagnose a problem with traffic seemingly either not being sent from the sender or received by service behind Traefik. Is there a way through either Traefik metrics or logs to find out if traffic is hitting the server and Traefik?

Long story:
Trying to collect metrics from OpenWRT router through Collectd to Telegraf (Behind Traefik) and through to InfluxDB also behind Traefik. I can't figure out whether the router is not sending the metrics or whether Traefik or Telegraf are not receiving the data.