Extender is your problem most likely then if WiFi is intermittent near it, and you're getting good speeds via ethernet.
Most people don't understand that if the Extender isn't receiving a good signal then anything connected to it is not going to get good WiFi. If you can hook something up to the hardwired network to broadcast, then go with an access point. The other thing to do is to make sure that the channel of all your AP's is the same, and on something that is less polluted in your wireless environment. Typically you would choose 1, 6, or 11 because they are the only 3 non-overlapping channels on the 2.4Ghz spectrum. The other thing to try would be to switch over to the 5Ghz radio, because less appliances and other electronics use that frequency, the only downside is that the 2.4Ghz will give you a longer range, but the 5Ghz will be faster.
Never go with an extender unless you absolutely have to... Make sure your AP's aren't too close together as well, and if the distance between your wireless router and any other AP's or routers set into AP-mode is reasonable, make sure the radio on all of them is on. Use a better AP (802.11ac support) if you need good range, and only use an extender if you can put it in a spot that always gets good WiFi and is close enough to get WiFi over to a location that doesn't have good WiFi and also has no hardwired network jacks (RJ-45).
Hi.
Rotuer to extender edimax is 2.5 meters.
And my laptop from edimax extender is 12 meters.
router is netgear dgn2200v2
edimax is 300 m extender
and I didn't understand what you said in second paragraph.
If that's help:
I connected to router manager and some data:
Channel 8
Mode Up to 300Mbps
uses
Schedule and uses ntp server
there is also upnp enabled.. (idk what it is)
also in router log i see:
[Service blocked: ICMP_echo_req] from source HIDE_IP.
Firewall: packet drop. (hide ip), Protocol ICMP, Message type 3.
router&extender security - WPA2-PSK
-GooonE
If you have a wireless router, why would you need the extender if it's only 2.5 meters away? With radios that close together as well it's probably doing more harm than any good when it comes to zero-handoff.
Also channel 8 seems an odd number. UPnP enabled is fine, it's common.
If you need a long cable, you can easily make your own, just make sure that you terminate to T568A or T568B on both ends and that they match (no crossovers). Additionally you can get Cat6 (shielded) for speed, just make sure that you're not using Cat5 RJ45 modular plugs on a Cat6 cable if you do that, and in all cases, that the run is no longer than ~100meters (the limit). I would also recommend that you do not use the EZ-thru plugs because if you don't terminate them to a certain quality they can easily cause troubles on a network or they may short and not work. You only need to make a cable once if done properly and you'll get the quality too, so why not do it right? :)
I have all kinds of category cable, a crimper, and a network certifier, so I'll typically just build my own, especially since I know the majority of the junk you buy from the store is stranded plastic, non-shielded junk for the most part. I have shielded ends and the whole works.
If you want the wireless over hardwired, and the router isn't an 802.11ac, you can disable the radio on the router and get an 802.11ac access point for good coverage, and make sure that you connect to the 2.4Ghz SSID for distance. If you can't get an access point, you can put the router into bridge mode and use a wireless router that is an 802.11ac, and go that way, or just make sure that nothing but the secondary router is plugged into the first.
Lastly, there ARE sources of interference for WiFi. Such things include water, concrete, metal, and other invisible interference like microwaves, or if you have any baby monitors, those will also deplete your wireless coverage.
I personally find this NirSoft tool a great one when checking radio signal strength and settings:
WirelessNetView - Wireless Network Monitoring Software
I can see what channels other radios are set to, in addition to signal data.