So I could still do a last test : connect an external switch to the WAN port and add another device (other than my ISP device) to ensure that it's not a conflict between those 2 devices (hell why ?). I also changed the cable between routers (Linksys and ISP) without more luck. I put back the previous router (with ping to 1s after a while) and that one has definitely no issue with packet loss and so, it's not the ISP router which is failing as it works with my old router. But, I still see packet drop when pinging the ISP router (so, physically out of WAN). I also (surprisingly) found that the LAN and the WAN ip have no issue at ping (not like the Linksys stock firmware) and so, I think the problem is a bit "less worst" on DD-WRT that on the Linksys firmware. Ok, I flashed DD-WRT yesterday but unfortunately, the problem persist and I still see 10s of dropping packet and so, about 3% packet loss on longer run. That's why I first suspected that the stock firmware was having issue, I also found others having the same problem and heard to flash to DD-WRT to "avoid that unstability". With the Linksys firmware, both IP of the router (LAN and WAN) were having different behavior, I mean that the LAN ip was OK and no packet drop the but WAN ip has packet drop. I discovered that there were connection dropped and so, I started to play with ping on machine connected to wire and Wifi and it appears that Wifi and wire are OK to connect from LAN to LAN but once you have to go through the WAN port (to connect to the router of my ISP), than there is a high rate of packet drop and connection seems to be stuck for 10s or more. So I bought a brand new WRT3200ACM on Amazon and upgraded to latest Linksys and just used it with stock firmware. Note that I also tested reboot each day but it can fail in less than a day so. But no packet drop (and I'm testing it again now as the Linksys is just horrible). fork of a fork and it's not better, still laggy after a while. There is no more support at DD-WRT for that router and I finally flashed a. Several years ago, I bought a Asus RT-AC66U which was supposed to be good but at the end, it was the first release and has 1 core and after a while, it become laggy and ping to 1s. Posted: Mon 9:29 Post subject: WAN packets drop WRT3200ACM
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