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Forum Discussion
R7800 poor WAN download upload rate when a client is connected at 100Mbps
Latest stock firmware. Just found out a new unpleasant discovery. WAN slowdown bug when there is simultaneous LAN traffic with 100Mbps device involved in the LAN traffic. I have 3 devices connected...
What Firmware version is currently loaded?
What is the Mfr and model# of the Internet Service Providers modem/ONT the NG router is connected too?
Tried installing a non managed Gb LAN switch in between the router and these devices?
What CAT# Lan cable are you using? CAT6 is recommended.
Is QoS, Armor, or Traffic Meter enabled on the router?
Has a factory reset and setup from scratch been performed since last FW update?
Something I don't see with mine:
Though my 3 Dish network Joeys are connected behind switches...
R7800 Firmware Version 1.0.2.90
I've tried with non managed Gb LAN switch but as long as there are devices connected at 100Mbps and they transfer over LAN the WAN speeds drop dramatically.
None of the QoS, Armor, or Traffic Meter are enabled on the router.
Factory reset and setup from scratch doesn't make any difference.
I stress that WAN speeds drop occur only when there are 2 or more devices connected at 100Mbps that transfer data over LAN (I use iperf3 here to reproduce/trigger the WAN bug) and you perform WAN speed test at the same time from desktop PC connected at 1Gbps that takes part in LAN transfers too (around 200-300 Mbps LAN traffic to both 100Mbps clients). Sometimes WAN speed is still decent but there are LAN speed drops.
This doesn't happen if all the devices are 1Gbps. Only happens with two or more 100Mbps devices connected taking part in simultaneous WAN and LAN traffic.
I'd be curious if Voxels 3rd party FW does the same thing.
What is the brand of model of the switched you tested with?
What CAT# cables are you using?
What is the Mfr and model# of the Internet Service Providers modem/ONT the NG router is connected too?
Yep, the bug is present in stock, Voxels and OpenWRT firmwares.
The cables are OK because noname cheap router for 20 bucks doesn't have this issue with all the tests repeated using the same network setup and environment.