I’m having some serious speed issues with my Deco M9 plus.
Until recently I had a 100/100mbit internet line, and all was fine. The Deco app speed check confirmed speeds of 90/90 to 100/100mbit, and I was measuring this speed also on my desktop PC over LAN and on several wireless devices (iPhone 8, iPad, labtop PC).
Now my internet was upgraded to 500/500mbit (this is at least what am now paying for). Running test on the Deco app I consistently get over 600/600mbit test results. BUT… everywhere else I test, I remain at approx. 90/90mbit, and this applies for both LAN and WiFi!!
When I plug in my desktop PC directly to the modem, I get approx. 600/600 over LAN (using a 15m Cat6e cable). When I add the Deco over LAN, and no other devices, no switch or anything else, the LAN speed is reduced to approx. 90/90 (adding a 1m Cat7 cable). This is using the same test engine running on the desktop PC. What is going on here??
I tried taking one of my other Deco’s, resetting it, re-adding to the Deco network and setting this as main Deco. But all with the same poor result.
I’ve not bothered trying to troubleshoot the wireless connection yet, as resolving my LAN speeds has prio.