Khc phc li khi laptop bt Wi-Fi yu(24h) - Nu laptop ca bn bt sng Wi-Fi chp chn hay m Firefox hoc Internet Explorer lun b ng hnh th nn kim tra li card Wi-Fi hay cc trnh duyt trong my.

iu kh chu nht vi nhngngi dng laptop l truy cp Internet chp chn, my khng kt ni c Wi-Fi hay sng rt yu. Mt du hiu na l m Firefox hoc Internet Explorer lun b ng hnh. Vo Yahoo Messenger cng chng c nt trong khi nhng chic my bn cnh vn lt nt m m.Kim tra card Wi-Fi

Vic u tin d thc hin nht l tho card Wi-Fi ra v lp vo mt my khc kim tra. Trng hp, my vn khng truy cp Internet c, c th li do card khng chun. Card i c vi chun a, b, cng l nguyn nhn khin my bt sng yu hoc khng bt c Wi-Fi nhiu ni dng h thng pht sng c chun cao.Ngoi ra cn c yu t khch quan nh thit k cu to khe t card ca mt s dng my c s cch ly vi vic tip nhn sng Wi-Fi. th, bn hy chn v tr ngi gn ngay cc b tip sng (Access point) hoc Router xem my c bt sng tt hay khng. Cng c kh nng, "cc" Access point pht sng yu, hoc chn a ch Mac. h thng hot ng an ton hn, ch nhng thit b ni mng c s ng k Mac nht nh mi c quyn truy cp vo h thng. Danh sch a ch Mac cc thit b ni mng khng dy s dng trong h thng mng c khai bo thng qua phn mm qun tr AccessPoint. Trong Windows XP hay 2000, th tc xc nh a ch Mac ca thit b mng nh sau: Nhn chut vo Start->Run, nhp vo dng lnh cmd ri nhn phm OK.Trong ca s DOS ca tin ch cmd, nhp vo dng lnh ipconfig /all (lu gia ipconfig v /all c khongtrng phn cch) ri nhn phm Enter. Sau du ':' ca dng thng bo PhysicalAddress chnh l a ch MAC ca thit b mng. Vi Windows 98/Me ch cn nhp cu lnh winipconfig vo trong ca s ca lnh Run, a ch MAC s nm trn dng thng bo c nhn 'Adapter Address'. Do vy, bn cng nn kim tra thm a ch Mac ng k li. V d nhin khng loi tr kh nng card hng.Li trnh duyt

Ngc li, trng hp sau khi cho card vo laptop khc v hot ng tt th nguyn nhn c th l do mt s chng trnh truy cp mng trn my ca bn ang c vn .Bn c th xc nh li my qua cc bc nh sau: Ci li bn Windows thng, khng ci bt k phn mm no lin quan n mng. Sau th vo li Internet. Nu n th c th do li my phn mm virus vi firewall. G b cc phn mm ny v ci t li my lm vic vi nt d dng hn.D laptop c bt sng c hay khng, bn cng nn kim tra li cc trnh duyt Internet. Nn th c FireFoxv Internet Explorer so snh, trnh duyt no khng vo mng c th c th g b v ci t li.Chn mua card Wi-Fi Hin trn th trng c 2loi card mng: loi lp ngoi (USB) v loi lp trong (PCI). Bn cn xem cu hnh phn cng (khe cm, cng giao tip) trn laptop chn loi card thch hp.

Thng thng, loi lp ngoi ni vi my tnh thng qua cng USB nn tho rp rt thun tin, thch hp vi nhiu loi my tnh khc nhau t my tnh bn n laptop, li trnh c hin tng nhiu in t do cc thit b lp trong my tnh gy ra.Nhng ngc li, cng rt d b hin tng bt sng chp chn khi u tip xc vi USB trc trc hoc li lng.Ring loi loi lp trong giao tip vi my tnh qua khe cm PCI trn bo mch ch. Th tc lp rp, ci t phn mm cng tng t nh khi chng ta lp card m thanh, card mng, card iu khin a cng... nn mang tnh thm m cao. Cc nhn hiu card Wi-Fi c a dng hin nay c cht lng tt l Dlink vlinksys vi gi dao ng t 15 - 20 USD.Ngy nay khng ch c cc qun cafe mi lp t Wi-Fi m nhu cu s dng mng khng dy gia nh cng tng ln rt ng k. Nu bn c nhu cu s dng Wi-Fi ti gia th mt trong nhng yu t quan trng my khng gp phi hin tng mt sng hoc bt sng chp chn l nn b tr cc b tip sng (AP) nhng v tr trn cao, trnh b che khut bi cc vt cn.Cc cn anten ca AP cn dng thng gc 90 . Nu s dng chun khng dy 802.11b v 802.11g th cn ch b tr cc AP nm xa cc thit b pht sng in t c khong tn s trng vi tn s ca AP (2,4GHz) nh l vi ba, in thoi 'm bng con', u thu pht Bluetooth... h thng cho cht lng tn hiu tt nht, nn di chuyn, b tr AP th nghim nhiu a im khc nhau trc khi t c nh ti mt ni.