OK guys long time no post, this is a 2 part piece, 2 problems, possibly connected... Scroll to the end for the 2 short version questions I havent lived in an area thats had technology for a while, but im in a nicer part of Fiji now and am in charge of a network set up by someone a long time ago. It is a hybrid nasty piece of work laid out over a resort to give most of the guests access to the internet and the 6 top shelf rooms have a smart tv with Plex running on them. The network is the following... - 3g unwired modem (yep... blistering speed for around 150 devices) - PC running windows 10 with Antamedia installed, ICS enabled (DHCP disabled) across the 2 NIC's both static IPs etc - TP-Link TL-WDR4300 Router running DD-WRT v24-sp2 DHCP enabled NAT disabled - PC running windows 10 and Plex media server connected to router - 2 TP-Link wa7210n and 1 wa5210g in access point mode from the router - 2 TP-Link wa7210n in Bridge with AP mode connected to 2 of the access points, 1 to extend over the pool area to other rooms that have a router turned access point in each one daisy chained along from the Bridge and have a TV wirelessly connected in each room. The second to reach out to the staff areas. All fixed devices have static IPs outside of the DHCP range and using an I.P scanner and common sense can find no IP conflicts, the 3g modem and antamedia PC's WAN side NIC being on a different subnet. I can easily be missing a DNS or NAT issue somewhere, but I think its all ok, the internet DOES work, websites load, but files corrupt easily, previewing my own post one of the images displayed all greens and purples... All access point security is WPA2 AES and bgn 20mhz, except the bridges, they are n only and 40mhz. Click to view full size! The purpose of Antamedia is purely to throttle guests speeds to 25KB/s down and 16KB/s up and have a data cap of 250MB per day per MAC address (which no one reaches because of speed), chosen by the director. I would do away with it as DD-WRT im pretty sure has this option but the Director was some I.T wiz back in the day and loves this absolute pile of a program, so no budge there, it has the ability to charge people for use and redirect to social media for "likes" in exchange for use, he doesnt want this utilised (read idiot) The main problem I am trying to solve is small and random corruption of internet data of all kinds on any PC in the network except the one running Antamedia (direct connection to modem). The plex server is a very short link but experiences the same issues as a laptop connected out the back on the staff access point. Almost all downloads, .zip .exe .jpg etc will fail during download (network error) or complete, but then not unzip correctly, not run, or for jpg's, which will happen on a web page or after download will be scrambled or grey for most of the image. No PC's can complete windows updates or anything of the sort. One thing that works is P2P which Antamedia squashes anyway with timeout settings and the like, but there is a whitelist that staff MACs are added to so ive downloaded torrents with success which brought my line of thinking to protocol error. I've tried lots of different things and can provide info on each tactic but right now am looking for guidance from the beginning and fresh ideas so even the most basic suggestions are welcome so I can see that im not insane, yet. Im now looking at Internet connection sharing as the culprit for some sort of checksum type fault? (or something along the lines I have no real idea about this, thats where you guys come in!). 2nd problem. So with this network design in mind some problems internally arise too as you can imagine. This is not internet related ( I don't think) but surprisingly when all devices feels like working You can stream 1080p mp4 files via plex to the furthest room in the network ~239 no problem, then other days the tvs wont connect to the server at all. This is very sporadic and the guests either dont complain about this too much or its rare so I dont get a real feel for failure rates here, on a pre-checkin room inspection plex will generally work. On the main PC running Antamedia there is Pinginfo view running to show if AP's need to be hard reset (we run from generators so power swap overs sometimes jam them up) look at these failure rates Click to view full size! Wireless channels for all devices are separated appropriately. I understand that pings aren't the be all and end all of network health and with so many devices behind that bridge it may not have time to answer the ping but the wired access point it connects to, 252, is always ready to say hello. Im probably missing something here too. As in the ping info pic there is a device at ~202, this is an access point in my room connected by cable to AP ~201, same setup as ~231 to ~234 and I have smb shares with the Plex server to watch movies and tv on a pc with Kodi, 90% of the time it works, the other 10% i would put down to the ~201 AP needing a hard reset. Would this ping failure hinder the network performance in any real world way? I can stream a file to the PC in my room and watch the ping failure climb across ~201 and ~202 but the video will play regardless. All network transfers are fine and will complete, not very fast, from my PC to the Plex server, when transferring around 200MB of files ill see 2-3MB/s, but no errors to speak of. So this is as much info as I can think of for now, ive been tinkering with this network for months, it has come a long way and it works, as in the guests can post selfies on facebook, i've even seen some using skype, apparently well enough. While I have access to the office network, with a separate, identical modem, get no corruption and slightly better speeds, the guests will complain the very second the network has a hiccup (we are 6 hours away from the mainland in the beautiful Yasawas, stare at the damn ocean!), so the higher powers arent too concerned about file corruption of images and zip files as long as the social media apps load so I am getting no more support on the matter. I just want to figure it out as peace of mind and a bit of learning. Im the manager/dive instructor of the Dive centre attached to the resort and find myself thinking of new things to try while underwater. It took me ages to type this and almost decided to wipe the lot with 2 simple questions posed as - Can Internet connection sharing cause data corruption? - Is a ping failure rate of 50% going to cause real world network issues for streaming videos? Now you have info to play with though. Thanks for reading guys and girls!