So ive been losing my hair for about a week trying to sort out the issues im having. Began with ping spikes which led to bandwidth testing and its beginning to look like the new windows update may be at fault. ive changed dns. ive disabled/enabled dns relay. Ive rebooted modem & switch. Ive had a tech out to test signal strength. His netbook plugged directly into the modem got expected and acceptable speeds. I got expected speeds when it was installed a month ago but between then and now who knows what changed and one thing did for sure - an update from 1709 to 1803. I circumvented my switch as a process of elmination. Plugged my pc directly into the modem hoping to see better speeds but nope, still bad. so not modem. not switch. I have 3 pc's unfortunately theyre all on 1803. I cant test on one as its an old laptop with a 100mb ethernet port. The other 2 im testing on and both get inadequate and inconsistent speeds. Since they both did i thought for sure it was the switch. Since that isnt it, the only other factor that ties them together is the OS. Speeds were good before, they are no longer. Just looking for some insight on what my options are? I def dont want to have to reinstall to test my theory. It cant/wont happen on my main pc but even on my backup pc thats a chore id rather not under take for a few hundred mbps. (pains me to say that but with kids, time is at a premium these days lol) Has anyone noticed the same? If so is it something microsoft will eventually address? no idea what to do. On the day of install i was getting ~950/50 today the best i managed after tweaking a buncha settings for throughput was ~700/40 so inconsistent that some are ~300mbps and most are in the 600mbps range of my hardwired gigabit connection. Networking isnt my thing so unsure where to even go beyond what ive done already. Any takers?