[操作疑難] iCable & Router WiFi 問題 (求高手解答)

danhaywoodchan

小弟早兩日砌左新電腦
skylake i5-6500 & Gigabyte H170n WiFi (wireless card 係intel 8260)

以前用舊電腦個陣, 所有野work well, 舊電腦, iphone ipad 全部都連到WiFi 上到網
Router 係 2009 年買既WR841N v3

買左新電腦之後, reset 過router, 係連到WiFi, speed test 都正常 (50mb 寬頻 有47mb download speed), 亦到係上到網, 但係唔知點解係download 唔到野, e.g. download Smart Security from ESET, 個speed 一開始百幾even 幾百, 但係十幾秒之後就會變成幾KB, 甚至零, 然後不停向十幾KB 到 0 B 呢個range 遊走...............但係如果我用LAN線連去ROUTER再連去MODEM 就完全無問題

iphone ipad (iphone 6 & ipad mini 1) 仲衰, 連到個WiFi, 頭幾秒上網好快, 但係之後就完全上唔到, 點reset 個router 都係咁..........

之後借左FD 部 notebook 黎試, 部notebook 行N 無AC, 連到WiFi 上到網download 野 仲好快.........

我搞左幾日都唔知發生咩事, 有冇高手可以幫手解答下?!

謝謝

passerby

你個 router 都已經有咁耐歷史，硬件有問題係唔出奇。

30624700

回覆 1# danhaywoodchan

Problem is on the Intel wifi card.

Intel 8260 is a very buggy wifi adapter, try install latest driver from Intel.
https://downloadcenter.intel.com ... nd-Wireless-AC-8260

Avoid using Bluetooth and USB 3.0 device when wifi is connecting, as it will cause interference to 2.4g wifi signal.

See peoples complaints on intel adapter.
http://www.mobile01.com/topicdet ... p;t=3707564&p=6

danhaywoodchan

but my WiFi adapter 8260 but not 7260 and I dont encounter the problem of frequent disconnection. I just feel annoyed but the problem of downloading and the access failure with iPhone and iPad.

Anyway, thank you so much for your assistance!!!

30624700

回覆 4# danhaywoodchan

When download speed drops to zero, the connection is probably disconnected or freezed, its trying to reconnect at the background but you don't see it.

BTW, did you connect external antenna to the card, the signal improves a lot with antenna fitted.

danhaywoodchan

回覆 5# 30624700

Oh I got the concept
The WiFi card is provided by Gigabyte in the motherboard package, it also offer an external antenna.

But it seems the router is problematic as well as iPhone and iPad can't access the internet through the router >.<

30624700

回覆 6# danhaywoodchan

Its better to set a fixed channel on the router, choose from 1, 6 or 11, do not use auto.

For wifi advance setting, I use 20 Mhz (not 20/40 or auto) as its much stable (less inteference).
Always turn WMM on.
Use WPA2 personal (AES) as encryption.

danhaywoodchan

回覆 7# 30624700

I have applied such settings but still the WiFi only works for computers but not for any portable devices.......jeez

madmacuser

我唔係高手，不過既然你嘅連線問題係幾日前自從有新電腦後reset router 後出現，咁似乎問題源於設定 rather than 硬件/router

30624700

回覆 8# danhaywoodchan

When you reset the router, you probably have also reset the ssid, and maybe encryption method as well.
However, the Iphone/Ipad is still using the old profile (stored in the device) to connect to the router, this may cause the device unable to connect (or strange behavior, if encryption method has changed).

That's why your friend's laptop can connect to router (internet) cause it recognized a new router and created a new profile.

The solutions:
On the Iphone/Ipad, find out your connection profile, long press and choose "forget this network settings", turn off the wifi, turn wifi on and search your router, once its connecting it will prompt for the WPA key, enter the key and its done.
Perform the same process on every device.