Network still experiences delays despite sufficient bandwidth.
Network still experiences delays despite sufficient bandwidth.
I understand, that might seem odd but not too surprising—could be a bottleneck... or perhaps it’s not your ISP. I don’t think we have enough details yet to solve this completely. This is the information we really need at the start. Did you reach out to your ISP and ask if they know what’s happening?
I'm receiving 100Mbps download speeds. They said upload and download would match, so I expected around 100 Mbps down. Previously, I got similar performance with another ISP before. Recently, they switched their main provider, which caused the upload and download speeds to become uneven. The YouTube issue didn't exist at that time. It took about 4 to 5 months for the problem to appear. I use a local ISP in my area and chose them for faster support. They provided a fiber connection, which is mostly an ONU converting optical signals to Ethernet. I didn't install their router myself; I haven't connected the ONU directly to my PC because it's too far away and I don't own a laptop.
Download RethinkDNS preferably from F-droid and examine the network logs. Disable any unnecessary connections to prevent accessing unwanted sites, then reconnect your Android device to Wi-Fi. F-droid offers a solid collection of open-source software; Firefox RethinkDNS and VLC are available there. I believe most Android and related network traffic is consuming bandwidth. Reduce that usage and retest. There are over 15 Google-related domains currently active—temporarily block them for testing, including NTP as well. Install Wireshark on a PC to observe detailed network activity and router details. Open the tool, view the network address, and see website names rather than just IP addresses. Consider unplugging the TV or resetting it, then re-enter the Wi-Fi password, and check performance solely on the PC. You might configure a firewall to redirect all default Google DNS queries to an alternative service like a Pi-hole VM or NextDNS. This ensures you retain control even if the TV software prevents network shutdowns. To monitor broader network behavior, set up your own DNS server (such as Pi-hole) or route your network DNS through NextDNS.io, which provides free access to detailed logs.