Signal strength fluctuation

Hi all,
We are installing a WLC-4402 with 1252 APs connected; they have been working ok; but we have a problem with a Lenovo x61's wireless laptop card; the signal strength of this client fluctuate (up and down) each few seconds (sometimes it gets disconnected even though it is located very close - 20 feet - to the AP); has anyone experienced the same problem?

Check to see if you have any co-channel interference of some sort. You should see the "signal strength" meter flunctuate here and there. It's the wifi card that is negotiating best signal. If you see the signal drop to like 5.5mbps 2 mbps, usually it is noise around the area.

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Slow signal strength fluctuation and up/down client link

I have completed installation and configuration system which consist WLC5508(HA),MSE and WCS (all soft are last version). APs - 1252 a/b/g/n. But have problem, some clients have a slow signal strength fluctuation and up/down client link per 1hour or 30minuts. I see that this occur, when client change AP, but I can't understand why because client are not roam, they on the one point during all time (laptop on the table for test).

Signal strength measurement is not an industry standard measurement, although dB and mw conversions are a defined standard in the aspect that 100mw is always 20dB not every client card software defines an RSSI of -67dB to be excellent.
So the validation of signal strength can vary widely in the client card software between brands and even between models, or between software releases. So there are a number of factors that play into this also keep in mind that each client cards driver software has it's own roaming behavior, that varies as widely as its depiction of the signal strength values.
Additionaly power save functions and the antenna type in the device can all affect the perceived signal strength and roaming behavior.
So the flux your seeing could be a result of the any of the following items or something else
network design: meaning possibly there is insufficent coverage and the flux you are seeing is actually multipath.
Client Card: Some client cards just don't perform well and have sub-standard components that impact performance
Driver Software: some driver software is just bad, it has poor algorithims, poor logic, etc.
Bad antenna: the antenna in the device could be of poor quality or defective.
Hope this helps...
Please rate helpful posts.

Mid 2010 iMac Wifi signal strength issue

I am having issues maintaining a robust Wifi signal on my 21.5 inch 2010 iMac with 10.6.5 installed.
my symptoms are very similar to what is described in this post:
http://discussions.apple.com/thread.jspa?threadID=2596933&tstart=0
in addition to that I am experiencing the following symptoms:
can't print to HP wireless printer
remote app for iphone doesn't find the iMac
mobile mouse remote app doesn't find the iMac
can't ping the iMac from Windows laptops on the same subnet or from the router itself
accumulation of send and receive errors in Network Utility
these symptoms occur after the machine has been connected to wifi for 30 minutes or so. Turning off Airport and turning it back on temporarily fixes the issue. the Mac firewall is turned off.
as reported in the post mentioned above, signal strength for my Windows laptops and other devices is consistently -25 but the iMac signal strength fluctuates wildly.
One more troubleshooting step that I have taken is to install Windows 7 on a boot camp partition to rule out the iMac hardware and physical location as the issue. While booted into Windows the iMac did not exhibit any of the above symptoms and held a steady -25 strength signal.
Lastly I am using a TrendNet Wireless N Access Point but have also tried an Apple Extreme and Express (both N). I've tried 2.4Ghz and 5Ghz on various channels. I've even tried dialing down to G mode.
I've read other posts about DNS settings, Static instead of DHCP addressing, etc. and none of these has solved this issue.
Thoughts anybody? TIA

Update concerning additional troubleshooting steps that I have taken.
1) did a clean install of OS 10.6.3 onto an external drive and managed to replicate the issue....so that rules out apps, preference files, etc.
2) managed to get a little bit more stability by setting up an Airport Express in 5Ghz mode with Interference Robustness turned on and the multicast rate set at 9Mbps....of course ios devices don't do 5Ghz so I still have to run another AP...so not an acceptable solution.
What else do I need to do to prove that it's a Mac OS software issue?

IPhone 5s call signal strength is 3 bars and my calls are breaking up?

I switched from an iPhone 4s to an iPhone 5s and now my iPhone signal strength is 3 bars and my calls are breaking up? what gives?
I live on top of a hill in a major metropolitan city and my carrier has always been Verizon and my call signal strength has always been 5 bars and occassionally on a cloudy rainy day I had 4 bars. Since upgrading to the 5s my call signal strength at my home has never gone past 3 bars even when Wi-Fi is connected. When W-Fi is turned off and LTE service kicks in, the call signal strength flutters between 2-3 bars and if I am on a call, the person on the other end is telling me I am breaking up. This has never happened with my iPhone 4, my iPhone 4s. Is anyone else noticing signal problems?

I am also having the same exact issue. I had an iPhone 4S with Sprint servince and always had at least 4 bars of service (4 dots after iOS7 upgrade) and I am now fluctuating between 1 and 2 dots on my new iPhone 5S. I am also having people I am on the phone with tell me that I sound like I'm in a tunnel and or that I am breaking up. I am also hearing the breakup of voice service even when speaking to someone on a landline. I took my first iPhone 5S back to the store and traded it in for a new one and am having the same exact problem with this new 5S phone. I was told by the salesman at the store that the problem was due to the 5S is using different towers than the 4S and that the new towers for the 5S were still being implemented. Do I know this to be true or necesarily believe this? No. Do I hope it's true or that Apple will come up with a fix for this problem in the very, very near future? Yes. Apple, what is going on with my service? It's obvious that it's happening to users from all of the major American networks.

Why does the wireless signal strength rise/fall on my Mac?

About two months ago, the wireless signal strength (from an Airport Express wireless router) on one of my Macs began to fluctuate. This machine is an adjacent bedroom from the router and has never experienced this problem until recently.
My other Mac sits two feet from the router and is fine.
I have moved the router a few feet in every direction with no change; have rebooted the Time Warner modem and router twice.
Every trick I know has failed to make a difference.
Any thoughts?
Mac in question: OS 10.6.8
OK Mac 10.9.2
Router is two years old.

Hi ....
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Your Mac has been infected with the flashback trojan. The fix is relatively easy.
Installing this update Java for Mac OS X 10.6 Update 8 will remove the flashback variants.
Restart your Mac after the update is installed.

The 5.1 update is causing my WiFi signal to fluctuate between 2 and 3 bars

The 5.1 update is causing my WiFi signal to fluctuate between 2 and 3 bars. I am 15 foot from my router, and never had this problem. I have a 4s phone. Anyone else having this problem?

The wifi signal strength indicator was one of the changes according to the list:
http://en.wikipedia.org/wiki/IPhone_OS_version_history
If your actual connection speed is about the same, I wouldn't worry too much about the indicator.

E2500 - Weak signal that fluctuates from weak to nonexistant

This router is really easy to set up but requires a ton of tweaking to get any sort of decent performance out of.
Even with these tweaks the signal is very weak. My old WRT54G had a stronger 2.4ghz signal than the E2500 produces.
Sitting one room away from the router and the signal is very weak. Forget being across the house. The WRT54G could cover almost the entire house with a network connection wirelessly, this thing can barely get a signal outside the room it sits in (same room the WRT54G was in).
What's great about it: Easy to set up
What's not so great: Weak signal that fluctuates from weak to nonexistant
This product has...
Unreliable connection
Short range
slow connection
About me...
Technology guru
Gamer
No, I would not recommend this to a friend.
I use it in...:Large home

The performance of your new router depends on various factors apart from the router itself. The wireless devices in your network, are they wireless G or wireless N devices? If they're wireless G devices, you won't really see any difference, and in fact any N devices in your network would also suffer because of that. Apart from that, placement of the router also matters.
Avoid keeping the router in a corner or under the table or something like that. Ideally you'd want to keep it at a higher location. The signal always travels better from a higher location to a lower location. Apart from this, you can also change channels on the router. Typically, wireless interference can cause poor signal strength and speed. Changing channels helps alleviate this problem to some extent. I'd suggest trying channels 1, 3, 6 or 9. You'll have to try each and observe which channel gives you the best performance. Every network environment is different, so what works for one network may not necessarily work for another. Please let me know if you need any further help with this.

Strange signal strength values reported by Airport Utility

I am finding some strange signal strength values displayed by the Airport Utility (under the "Advanced" tab):
Client Signal Noise Rate Type
1 -24 -95 54 802.11b/g iPod Touch
2 -59 -90 130 802.11b/g/n MacBook Pro
3 -24 -95 54 802.11b/g Dell laptop
4 -24 -95 117 802.11b/g/n Airport Express
The four wireless devices are all approximately the same distance (about 4 metres) from my base station (another Airport Express).
What seems odd is that:
- Three of the devices show EXACTLY the same signal strength (-24 dBm signal, -95 dBm noise). The graphs are dead straight lines with no wiggles. If I move the iPod away, for example, to a distance of 10 metres, the figures remain at exactly -24/-95.
- The MacBook Pro values behave in a much more reasonable way. The graph has small random fluctuations (and an occasional large peak). If I move the MacBook further away, the signal level drops, as you would expect.
I should be interested to know why the values displayed by Airport Utility make sense for the MacBook, but appear to be nonsense for the other three devices.

The signal strength values now behave as expected. This was probably a result of a Mac OS X update or Airport firmware update. So, I am marking this issue as answered.

Battery , time , signal strength bar is not getting displayed in home screen , these will be displayed only when i click on any app. Can u let me know the setting change ?

Battery , time , signal strength bar is not getting displayed in home screen , these will be displayed only when i click on any app. Can u let me know the setting change ?

Did you check the Zoom setting?
Have you tried a reset (reboot)? Hold HOME and SLEEP until an Apple logo appears.
If it isn't Zoom and a reboot doesn't help try Settings/General/Reset - Reset all settings

Does the Note 4 have better signal strength than the Note 3?

I have a note 3 that continually drops calls and bounces from 4 bars to 1 bar over the course of time with the phone being stationary. I believe my problems started with the last software update (as documented in numerous forums) but both Verizon and Samsung give no credibility to problems raised on internet forums. The people on these forums apparently "lack technical expertise" was my take on their explanation.
So far they, Verizon, is following exactly the same course of action to try to correct my issues as other folks have stated they tried with tech support. Replacement of the SIM card did nothing. Software reflash is next followed by a factory reset with no additional apps allowed to download to the phone.
I have not looked at a Note 4 nor do I know anyone that has one so I am reaching out for information. What is the Note 4 running for software and if you owned a Note 3 previously did you experience signal strength issues where you felt you shouldn't have? If you had, or have, weak signal strength were you able to compare it to another android phone on the same carrier to see if the problem was specific to you phone?
I understand the bars are not the best indication of signal strength but they are a quick indication. Under the mobile networks I usually have -100+ dBm and 30 +asu. If it is a software caused problem neither Verizon or Samsung knows anything about it which is good news because they should be able to correct it. I have my doubts the people on the forums are the crackpots they make them out to be. I suggested they are people like me who are desperate for help with a problem Verizon gave up on.
If the Note 4 is better I know what to ask for when they hit the end of the road with me. That will happen software and reset wise in the next week then I am off to "getting someone else's problem phone" sent to me for a swap. Last time they tried this the junk phone they sent didn't even recognize the sim card!
Thanks for any facts you can provide about your experience with the Note 3 and Note 4 as related to signal strength in both areas with strong and marginal service.

I have an iPhone 6 on Sprint for work and it stinks, I don't like the service or the phone. Had an iPhone 5s prior and although I didn't care for it it was still better than the 6.
I had a software reflash done at Best Buy and a factory reset at Wireless world. Reflash went smooth but I should have done the factory reset myself or had Best Buy do it. It will take me days to get the phone back to where I had it. Kies software from Samsung does backup the phone but you lose all the changes you have made to the Home screens and some other apps need attention to get them functional.
Signal strength remains the same but need to use it for a few days to know if it still drops calls and breaks up. If it does next on the list is running in safe mode for a few days to see if an app is causing it. If the problem still persists I have the choice of replacing it with insurance, money out of my pocket. Sending it to Samsung for testing and repair (if necessary), or having Verizon send a replacement refurbished phone. Probably will go with the refurbished phone and hang on to mine for a few days as well. If the refurb isn't any better I will return it and then send mine to Samsung.
According to Wireless World the insurance company will pay me for my phone if I trade it in before a year is up. May get up to 50% of full retail. Not sure what to trade it in for if I go that route.

Iphone in Great Britian discovers Apple tech problem - Signal Strength -

November 25, 2007
Signal trouble: British iPhone mystery
Is O2’s network to blame, or Apple’s (AAPL) iPhone?
That’s the question posed by more than a few British iPhone owners who purchased the device in the past two weeks and have been struggling ever since to get decent telephone reception on it.
The problem surfaced two days after the phone went on sale in the U.K. when “Matlock” in Derbyshire started a discussion thread on Apple’s support board entitled “UK 02 (poor signal strength/reception problems)”:
My iphone can barely pick up even the slightest signal, although on occasion can pick up 3 ars, only for it to drop out again. I have two other 02 phones, a Sony Erricson and a Nokia n95 with no reception problems at all. Is anyone experiencing same problem with their iphone, I would like to hear from you. (link)
Two weeks later, Matlock’s query has received more than 100 replies (and 3,723 pageviews), most of them registering similar complaints. Some users found that reinstalling the software made a difference. When others returned their phones for new ones, the problem went away (although some reported that the new phones were no better).
Definitive U.K. sales figures are not available, but O2 reported that it sold “tens of thousands” of iPhones the first weekend it was available.
Several posters on the Apple discussion board volunteered that unlike the complainants, they were getting great reception on their iPhones. And many owners with signal problems expressed pleasure with how well the device performed its other functions.
But unlike American iPhone owners, who tend to blame any reception headaches on AT&T’s (T) cellular network, the assumption in the U.K. seems to be that the signal problem is Apple’s. The impression is reinforced by O2, which has been referring callers directly to the manufacturer.
One clue is that many British iPhone owners can, like Matlock, compare the signal strength on their iPhone with other cellphones using the same network (one user even posted photos showing the phones side by side). Another is that the indicator on the iPhone tends to jump to five bars as soon as it is placed in the charging dock, which suggests that the problem is battery related. As user Richard Catledge points out:
It says in the manual that phone signal is adjusted to the minimum power when not in use, just enough to detect the incoming pings, then it will power up to get the best quality call. It is digital, so as long as the signal power is strong enough to reconstruct at the other end, more power is pointless. I suspect this is what you are seeing, or a slightly flakey implementation.
Meanwhile, the consensus on the discussion board is that unhappy owners should let Apple know. Writes one user who posts as ::…SAM…::,
The only way to get anything done about it is if people that have poor signal problems is to take your phone back and get it replaced. The more phones they get back, the sooner they will do something to fix the problem. Emails and complaints are fine, they can be put in a folder, high handset return numbers cant be so easy to hide under the rug.
Thanks to InformationWeek’s Alexander Wolfe for the link. See his report here.
Filed

Interesting post. My previous phone was an 02 XDA Exec, a smart phone based upon a common handset (forget which one), but the smart phone before that was the same. They all had one thing in common - poor reception.
tbh, I think its an inherent problem with smart phones. However, with my iPhone I haven't noticed anything out of the ordinary really. Its better than the XDA, at least the iPhone doesn't drop out completely!
But compare it to a normal handset and the normal handset will normally have a much better reception strength.

I updated to IOS 5 and now my signal strength drops sometimes clear to zero when I open an app.

I updated my Iphone 4 with the IOS 5 operating system. When I use an application, including the phone app, my signal strength bars will drop from 4 or 5 bars to 1 bar and sometimes to no bars and searching for a signal. When I exit the app the bars return tto what they were before. I have an AT&T plan that operates in Mexico which is where I am now. In Mexico it operates on the TelCell network. Before updating the op system I had no problems with the signal strength dropping when I used an app.

Hello timfromharris,
Have you gone to your date and time settings and verified that "set automatically" has been checked?
If you don't know where to go, it's Settings -> General -> Date and Time.
Good luck!
Brendon

BT Vision box signal strength indicator

Just received the latest black BT Vision box replacing an older version. Old version worked really well, good picture. New one using same leads and aerial point pixellates at times horribly. The signal quality indicator usually indicates 100% and is green in colour. The signal strength indicator varies: sometimes is shows over 70dBuV and is red, other times it is around 64dBuV and is orange and occasionally it is around 56dBuV an is green. What should it be? It pixellates even when the indicator is green. I had a big new roof aerial fitted a few years ago and there is a booster/distributor box in the roof - currently running just two tv's off it, although rarely at the same time.
Why does the new box not work when the old one did? What do I need to do to cure this? Is the signal too strong or too weak?! Any ideas out there?
Thanks, Graham

Thanks for the feedback. I have tried splitting the aerial with a passive splitter - perhaps marginally better but difficult to say. Even tried splitting again to the point where the signal was showing weak. The strength indicator seems to have a colour coding, starting off red with a weak signal, going orange, then green, then as the signal is stronger it goes orange again and back to red when too strong. I have hit the green optimum region and gone either side of it. Pixellation is always there. Reading all the posts on here about this, I am coming to the conclusion that I am not going to be able to fix this.
I may ask BT to reinstate the old box, it worked perfectly - I only asked for a replacement so that I can have BT Sports and the option of Sky sports. I will just have to stream BT sport to my laptop if I want it. I am a little disappointed about this though.

Signal strength finder via black bt vision box

I have recently changed from sky (could be a big mistake) and have had constant troubles ever since.
The latest is I am getting pixelation on all tv channels.
Looking at the online "help" I have checked the aerial connections (all good), Aerial (brand new £50) and pointed in the correct direction. The next item was to use the handy signal strength checker as per BT's instructions.
However these do not appear to match what appears on screen.
You can check your Freeview signal using your Vision+ box, but please be aware that checking your signal will interrupt any recordings that are in progress. You only need to check the signal of one channel in a multiplex to know what signal you'll be getting for the whole multiplex.
How to check your signal:
Press the BT Vision button on your remote control.
DID THIS
Scroll across to Settings.
SCROLL ACROSS GOES TO TV SO I SCROLLED DOWN.
NO "SETTINGS" PAGE SO WENT TO "HELP & SETTINGS"
Select TV Settings.
DID THIS
Select the DTT Signal Strength page.
NO "DTT SIGNAL STRENGTH" PAGE THE ONLY OPTIONS ARE 1/sCAN FOR CHANNELS, 2/ CHANNEL MANAGEMENT, 3/ TV SHAPE.
The minimum signal strength and quality you need for a good picture is:
Signal Strength - 55%
Signal Quality -70%
Am I going mad ?
Can anyone help please?
Solved!
Go to Solution.

There is good news and bad news. The good news is that you are not going mad. The bad news is that you have a new version of the software which unfortunately doesn't include a signal strength tool.
Does your TV have a Freeview tuner? If so, try using signal strength on that.
Your signal could be too weak or too strong. If it's too weak you may be able to use a booster. If it's too strong you can use an attenuator.

My iPod touch 4th gen. Keeps giving me the error message "cannot connect to the app store when I sign in. I can open the app store and browse it but I can't download anything. I have full signal strength with my wi-fi and safari is working perfect.

My iPod touch 4th gen. Keeps giving me the error message "cannot connect to the app store when I sign in. I can open the app store and browse it but I can't download anything. I have full signal strength with my wi-fi and safari is working perfect. I turned it off and restarted it 3 times now. I have an iPad 2 and the app store works flawlessly with it. What is going on?

Same here on my lpad2. Can access the web just fine from browsers but cannot install new apps or updates in appl store. Seeing a few others reporting same issue tonight so likely an apple server issue and staff will notice it in network monitors and fix it...sometime this weekend.
Rob

Signal strength fluctuation

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