I am using a Netgear DGN3500B with Lede 17.01.4 behind my cable router over LAN. All in all it works quite well but there is an issue with the Wi-Fi download speed. I have a 200/10 Mbit/s connection but only getting max. 25 Mbit/s download speed over Wi-Fi whereas the upload is constant at 10 MBit/s. Sometimes down speed also drops below the 10 Mbit/s of the upload one and recovers again to about 20 Mbit/s. When I connect my PC via LAN with the router, I get the full 200 Mbit/s. And everytime I restart the router, the download speed starts about 40 Mbit/s and then decreases within 30 sec to about 20 Mbit/s.
Additionally the kernel log is full of "eth0: tx ring full".
I didn`t install SQM or changed anything important else. Just deactived DHCP for the LAN interface, so my devices get their IP addresses from my main router.
Another thing I noticed, is that LuCI cannot connect to the internet although I set the gateway address showing to my main router.
I hope you found a solution for the above problem. If not, see if adding your main router's IP address at the Use custom DNS servers field helps your LEDE device connect to the internet. I see no DNS in your LAN network configuration.
I also un-checked the This is the only DHCP in the local network option.
I have a Netgear DGN3500 (not B) as a 2nd router, LEDE couldn't connect to the internet, with the above settings it's OK.
Hi @vasilis74,
Thank you for your answer. You`re right.
I was missing the DNS server, although I already had un-checked the This is the only DHCP in the local network option . Now LuCI is able to connect to the internet.
But the problem with low download speeds are still there. Do you have these, too?
Common issue are not checking WMM (which will result in 802.11n routers falling back to 802.11g speeds), and setting channels to "auto" instead of channels 1, 6, and 11 (no overlapping) for 2.4 Ghz. If you are in the US, start with channel 153 for 5 Ghz.
Oh, you´re right. After reading your previous answer twice I set the channels manually to 1, 6 or 11, but still no improvements. I finally let it at 6.
No, because I´m using the Netgear to expand my Wi-Fi Network. But the cable router is on channel 1 and so there shouldn`t be that much interference between both routers.
You probably know already, but in any case I want to remind you that you don't have to use the 1st router at bridged mode, when you want to add a 2nd router to extend your network, so I think you don't have to purchase a range extender.
I have set my 1st modem/router at PPPoA 8/35 VC/MUX. It's IP (I changed the default) is 192.168.1.222, DHCP (also custom) 192.168.1.21 to 192.168.1.221. So I leave the ...1 to ...20 IPs range for static IPs. I left the default 192.168.1.1 IP at the LEDE (2nd) router and did the changes I mentioned above: about only DHCP and custom DNS.
I set the same SSID and WPA2 key at both routers, the only difference is the different channel (5 or more channels higher each other, 1 and 6 or 3 and 8 or 3 and 11 etc).
All the above are for ADSL2+, I don't know about cable ISPs and how bridged setup works there.
I absolutely did the same. Setting the same SSID and key so my devices think that there's just one WiFi network.
I'm just wondering why the wifi speed over the Netgear router is so slow, because setting up the same with another router, which runs with original firmware, in my network provides the full bandwith over WiFi.
So the setting is:
Cable router with integrated modem provides Wi-Fi and LAN network
-> Netgear router with LEDE connected via LAN to the cable router provides Wi-Fi network with same SSID and key at 20 MBit/s
-> other router connected via LAN to the cable router provides Wi-Fi network with same SSID and key at full bandwith
The other router is in LAN bridge mode.
Following the manual would set the Netgear router up as Wi-Fi bridge, but I want it via LAN so relayd shouldn't be necessary (correct me if I'm wrong).
So just setting up the same SSID and key, the right IPv4 address, gateway and DNS server in the LAN interface (like in posts #1 and #2) to work with the LAN network provided by the cable router, disable its DHCP and enable the Bridge interfaces (creates a bridge over specified interface(s)) option with ticked with Switch VLAN: "eth0.1" and Wireless network, should be the right way to expand the WiFi network, shouldn't it?
Same settings on my LEDE Netgear DGN3500. I forgot to say that at the WAN and WAN6 Interfaces, at the Advanced Settings I unticked the Bring up on boot boxes and disabled them.
But about the speed...
I did some more speed tests and the results are different than with the previous Android-app I used.
Next screenshot is the previous app, Speedcheck Pro. 2.32Mbps was my 1st (original firmware) router, 2.46Mbps was the 2nd (LEDE) router. The speed test server is probably at the other side of the Atlantic ocean, so the results were inaccurate.
The newer speed tests are with a server at my town, the results are closer to the speed that my 1st router says that is synchronized, which is:
DSL
Line rate - upstream: 1020 Kbps
Line rate - downstream: 14567 Kbps
Therefore testing inside the WLAN the LEDE router is faster, testing with an Internet server through WiFi the LEDE router is slower, probably because LEDE is 2nd and there is inserted the 1st router... on not for that, because:
I don' t know why and I have not tested yet WiFi speed with another original firmware router I have connected in my LAN, I will do it.
I was wrong at the 4th post saying that I had not lower speed with LEDE's WiFi.
I have not yet tested LEDE (Netgear DGN3500) as modem/router, as 1st router, maybe the next days I will and send the results.
This is a WiFi speed test with an Internet server in my town, using as 2nd a router with its original firmware, connected to the same 1st modem/router.
This is a WiFi speed test between the 2nd original firmware router and my Android phone, without an Internet server.
So the the fact that this is also connected as 2nd router gives a lower speed, although the clean WiFi speed is high. This makes me think that every router is 2nd gives lower WiFi speed.
Te next screenshot is a speed test with an Internet server in my town, using my Android prone and the LEDE Netgear DGN3500 annexA, connected as modem/router without any other modem.
The speed is even better than the 1st original firmware modem/router, so for once again the reason for low speeds seems to be the connection of routers as 2nd.
I am not an expert or professional, therefore there could be factors I cannot think about, giving inaccurate results.