HELP: Wifi Problems (No IP, Subnet, Router, Etc. Shows Up)

Hello,
I have just recently noticed that there is a problem with my i touch. Ok so this is what happened. Earlier today i tried to look at what was in the appstore like any updates. When i tapped it, it said "Cannot Connect", so i tried to do reconnect with my router. When i tapped the (>) next the the wifi NOTHING is listed meaning no numbers are listed next to ip address, subnet mask, router, or DNS. It is just blank. My friend can connect perfectly with my wifi but when I try to it says " Cannot Connect" as it does with other wifi using apps. Help please!!!!!

Hey thanks for the reply. Yea the resetting network settings did not work. My cable provider (Time Warner Cable)installed their router for me to use. Im not really sure what you mean by encryption method but I can give you my router model. As I said earlier the wifi works with all other devices except mine such as my other touch and my friends touch. I have an Ambit Cable Modem Issued by Time Warner Cable. Let me know if you need more info I'm only 12 and I don't understand a lot of tech. BTW I updated my iPod yesterday to 3.0 firmware and I noticed the problem when it was on 2.2 firmware.

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WiFi only works close to router, DNS fail, Signal Bars present but Safari says no Internet, I've deleted and readded through to reset and full reset, I had no problem with 4.3.2 only 4.3.3 both my iPhone4 and my iPad2. I am now beside router - no problem

Help
WiFi only works close to router, DNS fail, Signal Bars present but Safari says no Internet, I've deleted and re-added through to reset and full reset, I had no problem with 4.3.2 only 4.3.3 both my iPhone4 and my iPad2. I am now beside router - no problem, but go 20 metres and WiFi becomes unstable. Only way to get either to work is disable WiFi either as a Hot Spot or turn it off and use the 3G connection. This worked with 4.3 & 4.3.2 what has gone wrong? I raised it at the Apple Store in Belfast as a problem but was told that there was no problem with Apple but I must have a faulty router - yeah - that's a lot of faulty routers, my home, my office, my holiday home, Starbucks, my friends house, my son's house. I've tried all the 'fixes'. I think it is a plan to force us to buy Apple Routers

Two ways out, I added two more Belkin Access Points in my house in Spain so that I'm not more than 10Mtrs away, (Reinforced Concrete & solar glass 2010)
I bought 3 Apple Airports, 1 x Extreme and 2 x Express (1 as a hard wired AP, 1 as an extender) for my other house (Brick construction 1930's)
Everthing now works perfectly, as I said 'an apple plot', so either blast them with signal or visit your nearest apple store.
Early beta iOS5 (iPad) is also much inproved in Beta 3, I have not had any problem with 'Lion'
Happy hunting!
john

I have a WiFi home connection. It works on my laptop but has stopped working on my iPad, which I tried resetting but it didn't help. It recognises the SSID but then asks for IP Address, Subnet Mask, Router etc. Any ideas on what to do?.

I have a WiFi home connection. It works on my laptop but has stopped working on my iPad, which I tried resetting but it didn't help. It recognises the SSID but then asks for IP Address, Subnet Mask, Router etc. Any ideas on what to do?.

1. Turn router off for 30 seconds and on again
2. Settings>General>Reset>Reset Network Settings

Really weird WiFi problem with original iPad, please help!!!

Hey everyone so I recently inherited an original iPad from my uncle who stopped using it because of WiFi issues. Unfortunately he didn't do much to try to figure out the problem and there's no warranty on it but I'd really like to fix it!
The problem is that it doesn't display nearly any available networks under the WiFi settings, but it DOES seem to show and connect to unsecured networks (and works really well...I'm in a hotel typing on it right now). But at home, in the hotel room, at my uncles place, etc...no networks show up. Also I can't connect to them if I enter manually.
So far I've tried a hard reset, fully restoring, resetting network settings, and resetting all settings...I would take it to Apple but there's no warranty
Any ideas of how I can fix this potentially?
Thanks!

Look at iOS Troubleshooting Wi-Fi networks and connections http://support.apple.com/kb/TS1398
iPad: Issues connecting to Wi-Fi networks http://support.apple.com/kb/ts3304
iOS: Recommended settings for Wi-Fi routers and access points http://support.apple.com/kb/HT4199
Additional things to try.
Try this first. Turn Off your iPad. Then turn Off (disconnect power cord) the wireless router & then back On. Now boot your iPad. Hopefully it will see the WiFi.
Go to Settings>Wi-Fi and turn Off. Then while at Settings>Wi-Fi, turn back On and chose a Network.
Change the channel on your wireless router. Instructions at http://macintoshhowto.com/advanced/how-to-get-a-good-range-on-your-wireless-netw ork.html
Another thing to try - Go into your router security settings and change from WEP to WPA with AES.
How to Quickly Fix iPad 3 Wi-Fi Reception Problems
http://osxdaily.com/2012/03/21/fix-new-ipad-3-wi-fi-reception-problems/
If none of the above suggestions work, look at this link.
iPad Wi-Fi Problems: Comprehensive List of Fixes
http://appletoolbox.com/2010/04/ipad-wi-fi-problems-comprehensive-list-of-fixes/
Fix iPad Wifi Connection and Signal Issues http://www.youtube.com/watch?v=uwWtIG5jUxE
~~~~~~~~~~~~~~~
If any of the above solutions work, please post back what solved your problem. It will help others with the same problem.
 Cheers, Tom

10.10.3 slow, wifi problem etc...

I am running a Mac Mini 2011, 2ghz 17, 8 gigs of ram and 1tb. I had Yosemite installed and was working fine, no problems until 10.10.3
1. Wifi - slow, un responsive
2. Applications - slow to open and unresponsive at times
3. iTunes - trying to watch playback on trailers, and they buffer (wifi problem)
4. Photos - just not a fan but maybe it will grow on me
I don't typically complain, but this is getting a bit frustrating as this is my main computer. Other are my work laptops running windows. Also, since I watch a lot of content via the net etc. and pretty much everything is at a dead stop. I have yet to really check every application or function but assume they will perform the same.
I have reset my network a few time, cleared out some old files and some restarts on the machine itself. Last resort will be to wipe it clean and try a new install. Any other suggestions before I take this route?
Thanks

Linc,
I ran a few applications and started looking at the logs. There is one common theme. This is what I found. The Raid failure to me is confusing. I have 2 500gig drives but its setup as 1TB, no raid configuration. Let me know your thoughts on this. I figured, this may be what is causing all the other problems.
4/14/15 9:41:14.000 PM kernel[0]: AppleRAID::completeRAIDRequest - error 0xe00002ca detected for set "MAC Drive" (1D2FB168-5C0E-4039-8D77-BABE16945986), member 3B52124F-D6D1-4201-8B12-67088DAC36BB, set byte offset = 872893317120.
4/14/15 9:41:14.000 PM kernel[0]: disk2: I/O error.
4/14/15 9:41:14.059 PM cloudd[264]: read failed on path:"/Users/Pictures/Photos Library.photoslibrary/private/com.apple.cloudphotosd/CloudSync.noindex/Engine/f ilecache/AW2/cplAW2cWT2PxzWixMKuuNMTHJ8CJ3sH.jpeg", ino:0, offset:0x0, size:2228224, error:"Reading the reader failed for an unspecified reason"
4/14/15 9:41:15.276 PM MDCrashReportTool[635]: 635:6819840|CrashReportCopierAFC.m:-[CrashReportCopierAFC copyAndProcessRemotePath:usingConnection:]| ERROR: Could not remove remote path at ./DiagnosticLogs/security.log.20150410T121837Z.gz
4/14/15 9:41:15.313 PM cloudd[264]: Error registering MMCS item 35567 at /Users/USER/Pictures/*/cplAW2cWT2PxzWixMKuuNMTHJ8CJ3sH.jpeg: Error Domain=com.apple.mmcs Code=18 "Unable to calculate signature." UserInfo=0x7f9270eaba00 {NSDescription=Unable to calculate signature., NSLocalizedDescription=Unable to calculate signature.}
4/14/15 9:41:15.315 PM cloudd[264]: Failed to register MMCS item <CKDMMCSItem: 0x7f9270e96ad0; itemID=35567, recordKey=resOriginalRes, path="/Users/USER/Pictures/*/cplAW2cWT2PxzWixMKuuNMTHJ8CJ3sH.jpeg", error=<CKError 0x7f92709bc110: "Unknown Error" (2022/18); Retry after 3.0 seconds>> for operation 18437304-E86D-4068-8182-2E8CB09E225E: <CKError 0x7f92709bc110: "Unknown Error" (2022/18); Retry after 3.0 seconds>
4/14/15 9:41:15.568 PM MDCrashReportTool[635]: 635:6819840|CrashReportCopierAFC.m:-[CrashReportCopierAFC copyAndProcessRemotePath:usingConnection:]| ERROR: Could not remove remote path at ./DiagnosticLogs/security.log.20150411T142443Z.gz
4/14/15 9:41:15.725 PM MDCrashReportTool[635]: 635:6819840|CrashReportCopierAFC.m:-[CrashReportCopierAFC copyAndProcessRemotePath:usingConnection:]| ERROR: Could not remove remote path at ./DiagnosticLogs/security.log.20150412T050601Z.gz
4/14/15 9:41:15.922 PM MDCrashReportTool[635]: 635:6819840|CrashReportCopierAFC.m:-[CrashReportCopierAFC copyAndProcessRemotePath:usingConnection:]| ERROR: Could not remove remote path at ./DiagnosticLogs/security.log.20150413T171832Z
4/14/15 9:41:16.102 PM MDCrashReportTool[635]: 635:6819840|CrashReportCopierAFC.m:-[CrashReportCopierAFC copyAndProcessRemotePath:usingConnection:]| ERROR: Could not remove remote path at ./DiagnosticLogs/security.log.20150414T125100Z
4/14/15 9:41:20.595 PM cloudd[264]: Stream 0x7f9270e0c140 is sending an event before being opened
4/14/15 9:41:34.000 PM kernel[0]: AppleRAID::completeRAIDRequest - error 0xe00002ca detected for set "MAC Drive" (1D2FB168-5C0E-4039-8D77-BABE16945986), member 3B52124F-D6D1-4201-8B12-67088DAC36BB, set byte offset = 872893317120.
4/14/15 9:41:34.000 PM kernel[0]: disk2: I/O error.
4/14/15 9:41:34.803 PM cloudd[264]: read failed on path:"/Users/Pictures/Photos Library.photoslibrary/private/com.apple.cloudphotosd/CloudSync.noindex/Engine/f ilecache/AW2/cplAW2cWT2PxzWixMKuuNMTHJ8CJ3sH.jpeg", ino:0, offset:0x0, size:2228224, error:"Reading the reader failed for an unspecified reason"
4/14/15 9:41:35.758 PM cloudd[264]: Error registering MMCS item 35588 at /Users/USER/Pictures/*/cplAW2cWT2PxzWixMKuuNMTHJ8CJ3sH.jpeg: Error Domain=com.apple.mmcs Code=18 "Unable to calculate signature." UserInfo=0x7f9270a66690 {NSDescription=Unable to calculate signature., NSLocalizedDescription=Unable to calculate signature.}
4/14/15 9:41:35.760 PM cloudd[264]: Failed to register MMCS item <CKDMMCSItem: 0x7f9270eb28e0; itemID=35588, recordKey=resOriginalRes, path="/Users/USER/Pictures/*/cplAW2cWT2PxzWixMKuuNMTHJ8CJ3sH.jpeg", error=<CKError 0x7f9270a90a90: "Unknown Error" (2022/18); Retry after 3.0 seconds>> for operation CF27AABF-8661-4682-A39F-3449C7A6D723: <CKError 0x7f9270a90a90: "Unknown Error" (2022/18); Retry after 3.0 seconds>
4/14/15 9:41:55.000 PM kernel[0]: AppleRAID::completeRAIDRequest - error 0xe00002ca detected for set "MAC Drive" (1D2FB168-5C0E-4039-8D77-BABE16945986), member 3B52124F-D6D1-4201-8B12-67088DAC36BB, set byte offset = 872893317120.
4/14/15 9:41:55.000 PM kernel[0]: disk2: I/O error.
Thank you for your help or advise.

My wifi network connection is not working, will read "unable to join". Am able to access as a guest. When I hit the blue arrow on the right hand side of my network there is no information e.g ip address, subnet mask, etc. This info is in my guest area.

My network has not been working today. When I click on it it says "unable to access nhe network". My guest network will work. When I hit the blue arrow on the right hand side of my network there is no information in the IP address, subnet mask, router, etc. There is information in my guest section when I checked. I have unplugged and replugged my router and turned my Wifi button of and off, started and restarted my Ipod as per internet suggestions. Would anyone know how to get my network reactivated. I am nervous to hit reset network settings in case I lose all my music and icons, etc. added since I got my Ipod. Thank you for any assistance

Do other devices now connect?
Did the iPod connect before?
What encryption/security is the router using?
Try:
- Reset the iOS device. Nothing will be lost
Reset iOS device: Hold down the On/Off button and the Home button at the same time for at
least ten seconds, until the Apple logo appears.
- Power off and then back on the router
- Reset network settings: Settings>General>Reset>Reset Network Settings
- iOS: Troubleshooting Wi-Fi networks and connections
- iOS: Recommended settings for Wi-Fi routers and access points
- Restore from backup. See:
iOS: How to back up
- Restore to factory settings/new iOS device.
- Make an appointment at the Genius Bar of an Apple store.
Apple Retail Store - Genius Bar

WiFi problems after changing from WEP to WPA on Actiontec router

I need some help/advice--I've searched the forums but am not seeing my exact problem described so decided to describe it to see if the community can help me figure out what to do now. The situation is this: After recently learning about the insecurity of WEP "security" I decided to change the security settings on our Fios router (an Actiontec MI424WR, Rev C). I first tried to change the settings to WPA2, but then my husband's elderly Dell laptop could not connect, so I changed them to WPA. At first everything seemed fine--we could connect to the internet from our computers (my MacBook Pro, his Dell, and various devices--phones, kindle, iPad).
But we soon noticed some strange problems that I was never able to resolve:
I could never get either of two Airport Expresses to connect to the network, even after repeated tries (with hard resets in between)
Within an hour or two after rebooting the router, I was no longer able to connect wirelessly to a NAS device that is connected to the router via an ethernet cable--I could no longer even see it in the Mac finder. I could see it in Windows Explorer from the Dell but could not connect.
Similarly, I lost contact with a Sonos bridge unit that is also connected to the router via an ethernet cable. In this case the loss of contact was sporadic--various devices that connect over WiFi to the bridge could sometimes see it, sometimes not.
Resetting the router would temporarily restore wireless access to the devices hardwired to the router, but I would always lose the NAS device completely after an hour or two and the Sonos bridge sporadically. The computers and devices, however, had no problems connecting to the router itself and from there to the internet.
I finally gave up and returned the security to WEP, and now everything is fine: the Airport Expresses connect, the NAS remains available, and the connection to the Sonos bridge over WiFi is robust (the Sonosnet mesh, if anyone is wondering, was never affected).
I can't understand why switching to WPA caused such problems, but it clearly did, since switching back to WEP eliminated them completely. The simplest explanation is that there is some problem with the wifi portion of the rev C router that only becomes apparent in certain circumstances, though it seems weird that both wired peripherals and wireless airport expresses were affected.
Whatever the causes of the problem, now I'm back to wondering how to improve the security of my network. Should I:
See if I can convince Verizon to replace the modem with a newer version? We have had this one for more than 4 years, since we first got fios.
Just go ahead and purchase the most recent version of the Actiontec router (rev G)? It's only about $115--worth it to me if I can use WPA with it.
Buy our own wireless router, perhaps an Airport Extreme, and turn off the wireless on the Actiontec.
Thanks in advance for any help. This is driving me crazy, and I really don't like feeling as if the network is vulnerable, especially given how extensively we use it.
Becky

This doesn't sound too uncommon. I had similar issues in the past with some networks I've worked with that were resolved by moving the router actually to WPA2 or by updating the firmware. The ActionTec MI424WR Rev. F, G, and I require the use of WPA2 since they have Wireless N radios in them so WPA wouldn't be of much use. My old Linksys WRT54GX also had similar issues, but that was a result of the Wireless Radio dying along with a mix of newer hardware not playing nice with the old, no-longer-supported firmware. I retired that router, only to bring it back into service as a Wired router at a friend's home (shutting off Wireless and setting up another as an AP) which replaced an old BEFSX41 which didn't have enough power to handle his Cable connection.
Besides a few software bugs at play somewhere, there isn't much that could cause the wireless to slowly stop working like that. I would suggest moving back to WPA2. For the older Dell laptop if it's running Windows XP, make sure at least Service Pack 3 is installed if it hasn't been getting updated. Also, check for updated drivers for the Wireless card since they may be needed as well. A bit of searching on the Wireless card should also indicate whether or not it supports WPA2 encryption. Anything from the mid-2000s should support it.
========
The first to bring me 1Gbps Fiber for $30/m wins!

My ipod 4G won't connect to my wifi at home with new router. Says "unable to connect" and won't give me any other options. Have tried resetting network connections. Help.

My ipod 4G won't connect to my wifi at home with new router. Says "unable to connect" and won't give me any other options. Have tried resetting network connections. I don't want to lose anything. I have tried turning everything off and back on again. Desktop and laptop are working fine. Sometimes it turns on suddenly and I can use it for like 20 mins but then shuts off again. Same thing is happening with my dad's iphone, Help.

Does the iOS device connect to other networks?
Does the iOS device see the network?
Any error messages?
Do other devices now connect?
Did the iOS device connect before?
Try the following to rule out a software problem:
- Reset the iOS device. Nothing will be lost
Reset iOS device: Hold down the On/Off button and the Home button at the same time for at
least ten seconds, until the Apple logo appears.
- Power off and then back on your router
.- Reset network settings: Settings>General>Reset>Reset Network Settings
- iOS: Troubleshooting Wi-Fi networks and connections
- Wi-Fi: Unable to connect to an 802.11n Wi-Fi network
- iOS: Recommended settings for Wi-Fi routers and access points
- Restore from backup. See:
iOS: How to back up
- Restore to factory settings/new iOS device.
If still problem and it does not connect to any networks make an appointment at the Genius Bar of an Apple store since it appears you have a hardware problem.
Apple Retail Store - Genius Bar

HELP!!!!! WiFi problems

(I'm pretty sure I won't get any answers as usual but where else can I ask for help -.-) I'm having major Wifi problems and my router's warrenty expired in 2004 O_O But my computer has a good reception from the router like windows says Excellent Quality to Very Good Quality... But, with my iPhone, it barely detects our home network and contantly disconnects, I've tried getting as close as to having my iPhone touch both attennas of my router and my iPhone sometimes doesn't even detect our home network as it's touching the network router itself! lol can someone help me please... our computers work fine with this router it's my iPhone that keeps easily detecting other networks other than our own which is the closest and weird because the other ones aren't in our house...

Dear Saberunna,
I am experiencing the same problem and i believe alot of people are. I am dying to fix the problem but at this moment i don't know how.
If anyone out there knows how to solve the problem please let us know!!!!
thankx

I bought apple iPad on this July , it's been only two months but now I'm getting a problem like no wifi it's greyed out sometimes and showing no wifi... Please help I'm frustrated on this , did they provided me a fault device ??

I bought apple iPad on this July , it's been only two months but now I'm getting a problem like no wifi it's greyed out sometimes and showing no wifi... Please help I'm frustrated on this , did they provided me a fault device ??

See:
iOS: Wi-Fi or Bluetooth settings grayed out or dim
It is frequently a hardware problem and an appointment at the Genius Bar of an Apple store is in order.

Hi, I'm on my iPhone wifi problem by disabling my WiFi does not deal kindly help me

Hi, I'm on my iPhone wifi problem by disabling my WiFi does not deal kindly help me

Hi 481525018,
Welcome to the Support Communities!
The article below may be able to help you troubleshoot your Wi-Fi issue.
iOS: Troubleshooting Wi-Fi networks and connections
http://support.apple.com/kb/TS1398?viewlocale=en_US
Cheers,
- Judy

IPhone 4s wifi problem, I tried all the posibilities to fix the wifi, but still same. Please help to fix the 4s wifi. thanks

iPhone 4s Wifi problem, After using the device of 7 month. wifi is not working. BEFORE WAS WORKING FINE and now wifi is not able to identify. I tried all the possibilities to fix the wifi, such as resetting network, restart the phone, restore from iTune and setup as new phone, but the problem remain same. turning on the wifi can't recognise any network. any other idiea to fix the wifi of iPhone. Thanks

Hello Mohunkrisna,
Welcome to the Apple Support Communities. If you are having issues with the your iPhone not connecting to Wi-Fi networks, the following will provide some assistance. Now you have done most of the troubleshooting, but there are a few more steps to try in the article.
iOS: Troubleshooting Wi-Fi networks and connections
http://support.apple.com/kb/ts1398
Regards,
-Norm G.

Pls help me.i have a problem with WRT54G wireless router.

Dear all, Now i got face some problem with WRT54G wireless router.The problem is after i connect to the internet...the wireless will automatic drop..is that any ppl here got face this and got any solution to solve it...?thanks for sharing..

hi...logon to router's setup page and try changing channel to 11, go to advanced wireless settings, try changing transmission rate to 54Mbps, beacon interval to 50, fragmentation and RTS threshold to 2304, also try upgrading latest firmwar on the router...check whether it maks any difference or not and let me know.

Hi, I'm Having A Wifi Problem On My iPhone 4, It Won't Find Any Networks.. Please Help!!

Hi, I'm Having A Wifi Problem On My iPhone 4, It Won't Find Any Network

hey herb honcho,
try this article
http://support.apple.com/kb/TS1398?viewlocale=en_US

Strange wifi problem on a brand-new MacBook Pro

Hey there, I'm new here. Desperation has got the better of me, and I hope I can get some advice.
So, last sunday I bought a brand new 13" MacBookPro with 2.8g i7 processor and 10.7.2 OS (I can't update to 10.7.4 because System Update tells me the download has been tampered with or corrupted after I waited 2 hours for it to finish, but I'm trying a direct download from the website). Here's the exact product: http://www.amazon.com/Apple-MacBook-MD314LL-13-3-Inch-VERSION/dp/B005CWIZ4O/ref= sr_1_5?ie=UTF8&qid=1340301247&sr=8-5&keywords=macbook+pro+13
Everything is all perfect except for a strange wifi problem. Note that the wifi does not turn-on or off, it doesn't disconnect after 'sleep', it doesn't get less speed, it doesn't constantly leave a preferred connection (once I chose my home wifi it always connects to it no problem). The wifi bar is always full. What is wrong is that the internet is kinda 'glitchy'. The best metaphor I can think of is that it's like a car that has to be pushed down the road before the engine can start. Please, bear with me because this is kinda hard to explain and I'm not good at tech lingos.
One of the symptoms is browsing can get really slow and inconsistent, almost as if the wifi gets turned off in the middle of browsing. For example: if I look something up on Google and then open 5 new tabs, probably only 2 or 3 of those tabs will eventually load while the other two will not get past the long 'http:.......google.....etc etc' address and will eventually show one of those 'error loading page because there's no Internet connection' notice. This happens a lot. Sometimes I have to refresh/retry loading a page a couple of times before it finally loads, then usually everything will get back to normal and I will be able to open multiple tabs with no problem, but in a couple of minutes I would try to open another site and the problem will start again.
So I tried to see how it does with downloading using iGetter. Fortunately I also have a Macbook (white-plastic casing one) and my brother has an old 2006 MacbookPro so I can compare. With those two older Apples iGetter starts receiving data in less than 8 seconds after I click Start, while my brand-new Macbook Pro can take up to 15-20 seconds, sometimes it doesn't even start at all and I have to re-click the start button. But once the download actually starts (on my new MacBook Pro), it downloads like normal, it doesn't stop and the speed is also as good as I can get. Strange huh? Hence, like a car that has to be pushed before the engine starts.
I also tried 'speed testing' from a website with all 3 laptops. On my old MacBook and my brother's MacBook pro, once I click 'begin test' it takes only a couple of seconds of 'ping' before the download/upload speed measurements start, but with my new MacBook Pro (just like with iGetter) it takes up to almost a minute before the measurements start, sometimes it won't start at all and I have to re-start the test.
Well, thanks for reading. And hope you can help me shed some light into this. Because it is really preventing me from really enjoying my new MacBook Pro. And if this is most likely a hardware problem, I'd better get back to the store and try to get it replace or something while it's only been 5 days. *cheers*

Hey guys.. Thanks for the replies. Unfortunately, I bought the MacBook in Indonesia where there are no such thing as an AppleCare. The only option is to leave the Apple product to one of the 'Authorized Apple care centre' and have whoever do whatever to it without guarantee of success. As for returning it and getting a brand new one, I also don't know if there is such a deal here, but that's actually a good idea, will try to go to the store tomorrow. Although, I'm worried that the problem might be with OSX Lion or something and getting a new one won't help.
mark75090, I've tried resetting the router when I first noticed te problem, didn't work though. I've checked my new MacBook's wi-fi (option+click wifi bar) and it says 'PHY Mode: 802.11g', so does my MacBook and the old MacBook Pro. I don't know what those mean though, and I don't know whether or not my router is an N., can you tell me more please.. I have tried with the other two turned off, and only the new MacBook using the wi-fi but the problem persists. I have also tried connecting directly to the router, but as I described, the problem is too subtle for me to notice the difference.
Also, if I create a brand new Wi-Fi connection in network preferences and connect to my router through the new Wi-Fi profile, the problem seems to be gone for an hour or so, then it always comes back though. I have also just finally installed 10.7.4, but it doesn't help either.

HELP: Wifi Problems (No IP, Subnet, Router, Etc. Shows Up)

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