IPhone 3G: Wireless adapter problem
Hi there,
since two days I have problems connecting my iPhone to my wireless network. We have two iPhones and severals other devices in our home network and every device is still working, except this one iPhone.
Is there any chance that the wireless adapter in the iPhone breaks without anything happening, like I didn't drop the phone or something like that. It's just the wireless not working anymore, the network is detected but once I enter the password, it says it cannot connect. Even turning the encryption off doesn't help. The other iPhone still works perfectly.
Has anyone an idea how I can verify that the hardware itself is still working properly?
Thanks and regards,
Seb
Seb S. wrote:
Has anyone an idea how I can verify that the hardware itself is still working properly?
How to verify iPhone hardware is working: http://support.apple.com/kb/HT1650
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Unternehmenslösung gesucht X1 20A8 mit Microsoft Wireless Display Adapter Probleme
1 Business Case
Im Unternehmen kommen ThinkPad-Systeme der Baureihen Lenovo X1 Carbon, T440 und Yoga zum Einsatz. Die Kompaktbauform der X1 und Yoga-Baureihen machen es schwierig diese zur Präsentationszwecke geschäftlich an bestehende Präsentationsgeräte (Beamer) weiter zu benutzen. Dieses ist begründet durch folgende Gerätebeschränkungen: a.) Fehlende VGA-Adapter b.) Niedrige Bildschirmauflösung 1024x768 (XGA) oder 1280x1024 (WXGA).
All o.g. Notebooks der aktuellen Baureihe erreichen inzwischen eine Auflösung in Höhe von 1920x1080 (Full-HD), der X1 übertrifft mit eine Auflösung von 2560 x 1440 sogar den Full-HD-Standard.
2 Marktlage
Notebooks ab der INTEL-Haswell Chipbaureihe (Bj 2014 und neuer) und Windows 8.1 vorausgesetzt, unterstützen alle samt Miracast ab Werk.
Bei Miracast handelt es sich um eine auf dem HDMI-Kabelstandard basierte Kabellose Video- und Tonübertragungsart bis maximal Full-HD.
Neben Microsoft mit Windows 8.1 unterstütz auch Google den Miracast-Standard, dieses erlaubt im optimalen Fall zusätzlich die Verwendung von Android Smartphones/Tablets ab Version 4.2.1 die Benutzung von Miracast vorbereitete Präsentationsgeräte.
Miracast Technology setzt auf einen Zusammenspiel von Grafikkarten- und Wireless-LAN-Treiber. Die Wireless-LAN-Übertragung erfolgt im Peer-Peer-Verfahren zum Präsentationsempänger. Diese Verbindung entsteht parallel zu einer eventuell bereits bestehende Wireless-LAN-Router-Verbindung in das Firmennetz / Heimnetzwerk oder Öffentliches Internet.
Intel WIDI (Intel Vorgängerstandard) wird durch Miracast ersetzt. aussagen zur folge soll Miracast weiterhin mit WIDI-Empfänger zusammen spielen können.
Während lichtstarke Full-HD-Beamer im Geschäftsumfeld weiterhin eine Investition in Höhe von € 3.500 oder mehr erfordern. So gibt es bereits großflächige TV-Präsentationsgeräte mit 55 und 60" (140 cm - 150 cm) für unterhalb von € 1.000. Die zweite Gattung reicht für die optimale Versorgung von Besprechungsräume bis ca. 10 Personen.
3 Ziel
Bereitstellung einer zuverlässigen Unternehmenslösung auf Basis von Lenovo Notebooks, Windows 8.1, Miracast Empfänger welches:
Die Benutzung von TV-Geräte für kleine Besprechungsräume bis 10 Personen ermöglicht. - Aufrüstung vorhanden, mit HDMI-Schnittstelle versehene, Präsentationsgeräte für den drahtlosen Miracast-Empfang.
Darstellung einer PowerPoint-Präsentation sowie abspielen von Präsentations-Filme bis zur einer Auflösung in höher von Full HD mit 1910 x 1080, für die Rückwärtskompatibilität aber auch weniger und somit 1024 x 768 und 1280 x 1024.
Obwohl Miracast eine Tonübertragung von bis zu 5:1 unterstütz, so wird eine 2-Kanal-Stereoton als ausreichend angesehen.
Der Microsoft Wireless Display Adapter ist hat eine späten Martkeinritt und ist seit Sept 2014 auf den USA am Markt. In Deutschland ist dieser ab 01. Februar 2015 im deutschen Microsoft Store zu beziehen. Presseberichte zu folge gibt es keine Probleme.
4 Problembeschreibung
Dieser Thread beschäftigt sich allein mit eine Miracast Verbindungskombination bestehend aus:
Lenovo X1 Carbon Type 20A8 - Bios GRET43WW (1.20), Windows 8.1 Professional 64-bit - Build 9200
an
Microsoft Wireless Display Adapter - MicroosoftDisplayAdapter_C8 - deutsche Lieferung aus dem Microsoft Store mit Lieferdatum 2.2.2015
Aktuell ist ein Verbindungsaufbau mit Video- / Tonübertragung zwischen beiden Geräte nicht möglich.
4.1 Verhalten beim Verbindungsaufbau
Verbindungsaufbau wird initiiert
über Charms-Bar -> Geräte -> Projiziern -> Mit einer anderen Anzeige Verbinden – Auswahl der Gerät „MicrosoftDisplayAdapter_C8“
Verbindungaufbau beginnt
Computername erscheint am externen Bildschirm mit Meldung "Verbindung wird aufgebaut"
Miracast-Treiber werden korrekt und vollständig übertragen auf X1, diese kann betrachtet werden unter unter Charms-Bar -> Einstellungen -> PC-Einstellungen -> PC und Geräte -> Geräte
Nach einiger Zeit erscheint eine Abbruchmeldung.
3. Lösungsverlauf bisher…
3.1 Review Intel/ Miracast compatibility list unter http://supportkb.intel.com/wireless/wireless-display/templates/selfservice/intelwidi/#portal/1026/ar...
Intel Core i7-4600U Haswell CPU 2.10 Ghz - OK
Intel Wireless Adapter - Intel® Dual Band Wireless-N 7260 - OK
Intel HD Graphics Adapter - OK
3.2 Used Intel Driver Update Utility and updated
a.) Intel HD Grahics Driver for Windows 8.1 from 10.18.10.2960 to 15.36.14.64.4080
b.) Intel PROSet /Wireless Software and Drivers from 17.13.2.2 to 17.13.11.5
c.) Intel PROSet/Wireless Software for Bluetooth from 17.13.2.2 to 17.1.1411.01
3.3 Enable Logging
Um Miracast-Logging zu ermöglichen und zu aktivieren ist es erforderlich das ein Paarung zwischen PC und Miracast-Empfänger bereits erfolgt sind. Bei meinem Szenario war dieses der Fall.
Öffnen des Programm Regedit
Navigation zum Registry-Key [HKEY_LOCAL_MACHINE\Software\Intel Corporation\Intel WiDi]
Erstellung eines neuen 32bit DWORD Key namens "LogEnable" d.Wert setzen auf 1
Folgender Ordner auf der lokalen Festplatte erzeugen C:\Temp
Nach dem start einer Intel® WiDi/Miracast* Sitzung wird eine Logdatei erzeugt Bei mir C:\Temp\WiDiWinNext.20150207.143059.wdl
Die Logdatei ist kryptisch, und dient lediglich den Intel-Support.
4. Zusatz wissen.
a. Netgear Push2TV (PTV3000)
Test von Mitte 2014 – Zuverlässig im Verbindungsaufbau. Probleme bei Bildpropotionen wenn Auflösung niedriger Full-HD.
b LG-Systeme – Lenovo X1 läuft erfolgreich gegen folgende Miracast-Empfänger.
LG PF80G LED Beamer – Miracast integrierter ab Lichtschwacher 1000 Lumen Full-HD Home Beamer für < € 1000
LG55LB700V Full-HD TV – Mediamarktgerät mit integrierten Miracast-Empfänger
Geräteauslieferungen aus 4. Quartal 2014 – Test aus Januar 2015 - Verbindungsaufbau ist zuverlässig. Bild und Ton ist gut. Mauszeiger ist verzögert.
c. TVPeCee HDMI-Stick MMS-895mira+ Android basiert mit Miracast und iOS-Mirroring Kauf aus Nov. 2014, Test aus Dezember 2014.
Von 3 getestete Lenovo X1 läuft ein Gerät einwandfrei, 2 Geräte haben Probleme mit Verbindungsaufbau – Problem verhält sich wie oben beschreiben mit dem Microsoft Wireless Adapter.
d. Miracast Recierver für Windows
Im standard kann Windows 8.1 lediglich per Miracast senden. Der erste Miracast reciever für Windows 8.1 Liefert die Firma Airserver seit Dezember 2014 aus. Bisher war Airserver bekannt für Lösungen auf basis von Apples Airplay. Bisher habe ich hiermit noch keine Erfahrung.
e. Actionic ScreenBeam Pro Business Edition - Eine bisher durch die Firma Microsoft bevorzugte Lösung steht mit einer zweiten Miracast-Gerätegenation in den Startlöcher. Es handelt sich um eine Baureihe mit Enterprise-Unserstützung. Bisher nicht lieferbar.
5. Frage an die Community
Nach meiner bisherigen beaobachtung steckt Miracast (oder der Lenovo X1) noch in den Kinderschuhen.
Es wäre spannend zu erfahren welche Erfahrungen andere Community-Teilnehmer bisher mit dem Thema gemacht haben.also....
ich habe einen Carbon X1 20A7005RGE und bei mir läuft alles anstandslos...
(Netgear Push2TV PTV3000 ,Microsoft Wireless Display Adapter etc..etc..).
melden sie sich bei mir ...ich weiss wo der fehler liegt.....der liegt bei ihnen sprich in den einstellungen..
und das hat überhaupt nichts mit Lenovo X1 oder Microsoft..oder Intel zu tun... etc..
mfg....Semy
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