ASUS TUF AX5400 reduces data speed limits
ASUS TUF AX5400 reduces data speed limits
Hi everyone! I'm facing some problems with my ASUS AX5400 router setup. The configuration is using two routers, one from the ISP which is necessary due to the IPTV output on a port—this router isn't sharing its port details. The other is an ASUS TUF AX5400, giving me more control over customization and security at home. I'm on a 1Gbps plan. When my PC connects directly to the ISP router via a cat6 cable, speeds drop to around 930-950 Mbps. On the ASUS router, speeds are lower—720-730 Mbps—especially when no other devices are connected except the IPTV STB on the ISP side. After turning it off and back on, I get about 900 Mbps, which is still decent but gradually decreasing until around 720-730 Mbps. The device feels cool but doesn't warm up much, and adding a laptop cooler pad didn't help. Any suggestions? P.S. I just realized I posted in the wrong section; I thought I was in "Networking" but it wasn't visible until now. Can someone move it? Edited April 26, 2022 by Veliyan – wrong section
I’m trying to figure out what’s happening between the tuff and the company device. Also, is there a static IP configured for them? I think it’s more about performance than heat. When the company device acts as a router, you can reach close to 1GB—quite impressive. The term “up to” usually means anything below that, which often ends up being around half or less. If it’s mainly used as a modem, this might be the issue. It could be that the tuff isn’t performing well. I’m not sure, but I’d like to check the packet transfer between them and see if there are any rejection problems.
You can verify the packet transfer loss by comparing speeds under different conditions. Run a speed test on your PC using the same setup as before—connect to the ISP LAN and then switch to the TUF network. Check if the download/upload rates match or exceed the expected performance. If the TUF consistently delivers lower speeds, especially when idle, it may indicate overheating or hardware limitations. Review the config page for any changes after restarting both devices, and monitor temperatures to ensure the unit stays cool during operation.
I don’t necessarily think it’s better or worse. It just means the ISP understands its quirks and features and knows how to optimize performance. Are you referring to using the Tuff instead of the company one? Or connecting the Tuff through the WAN port with a network behind it?
The TUF is linked to one of the ISP router's ports through its WAN port. This setup allows me to maintain a network within the network. I use both devices because I’m unsure how to run IPTV and I value the features TUF offers, along with control over my internal network. I’ve noted two possible configurations: ISP Router -> MyPC at 930 Mbps and ISP Router -> TUF -> MyPC at 730 Mbps. It appears I’m losing about 200 Mbps during transmission.
Well if the ISP’s router is linked to their port, the ISP shouldn’t be causing any issues. You’re essentially treating it as a modem. Any lag must originate higher up the line. I’m not sure how to inspect packets to confirm they’re being discarded. Someone else here—other than me—should know, or the solution likely exists online. I understand it’s possible, though. It might be limited only by your router’s capabilities (which honestly seems pretty slow, but they’re known for combining things quickly). There are two main factors: packet speed and how often packets need to be discarded or resent. If your router isn’t the bottleneck, the problem probably lies elsewhere. If packets are dropping, the real question is why they’re being dropped. Edited April 27, 2022 by Bombastinator
Here’s a rephrased version of your text:
If you’re looking for guidance, the key term to explore is “packet sniffing.” This explanation comes from a commercial source aiming to promote a product. On the site you mentioned, free packet sniffing tools are available. One method involves using an outdated router that broadcasts all data and then filters it at the destination. While this approach is slower and has drawbacks, these older devices have become costly due to their widespread use. You might be able to activate a router in promiscuous mode, which would eliminate the need for any additional purchases.