Connecting iphone to printer?

Hi, iv got a lexmark printer, i have connected my laptop and works well using Wi-Fi now i would like to connect mp iphone.iv downloaded a lexmark app from the app store it asked to search for printer but can't find anything, any ideas

Set up a new iPhone 4S but no network connection?

I've just got a new iPhone 4S and I've set it all up but my phone doesn't have network connection when it should have as all my family are on the same network and they all have connection.

Is there anything I should have done?

I remember on my old iPhone I had to insert my number somewhere but I couldn't remember where? Can anybody help me with this?

What wireless router should I buy?

I'm in the market for a new wireless router, but all those acronyms scare me a little. =/ Up until now, I had been using my MacBook Pro to create a Wi-Fi network by sharing my ethernet connection, but that has become too cumbersome to keep doing. I've read a few guides on buying routers, but none of them are bold enough to recommend specific hardware instead of just general technologies. I have a good feel of what I want it to be able to do, so that should help decide which is best.

• it needs to handle reasonable internet speeds: we get a steady 10-15 Mbps from our ISP and might upgrade sometime in the future. It doesn't need to be blistering fast, but it should at least handle HD streaming without hiccups.
• it needs to be able to handle several devices all at once. My parents both have an iPhone and an iPad each (yes, we have too many iProducts in one household), and we have about 4 more laptops that'll be connected as well. It's unlikely we'll all be using the internet intensively at the same time, but it would be nice if the router at least could handle 5-10 devices simultaneously without randomly dropping the connection from time to time.
• it needs a pretty good range. Our house is slightly large, with thick floors and walls. It should manage maximum output within a three floor range and up to around a 10-155m radius, and something more reasonable up to a 30-400m radius. We live in the city, but it's not too crowded with wireless networks (about 10 are reachable at any given point in space), so interference shouldn't be a huge issue.
• I'd like to have it connect to our wireless printer (being able to set up Google Cloud print would be really cool) and an external hard drive as well for hosting and sharing files between devices.
• lastly, I'd like to have the option of tinkering it and installing something like OpenWrt [https://openwrt.org/] on it.

I'm not sure how much something like this would cost. I'm fairly certain that $40 might not cut it, and I guess I can afford something up to a hundred and something (say, $150).

Why is my internet not working

Okay guys I new help, I have no idea what to do anymore. I have a netgear WPN824.It says I'm connected to the Internet but when I try to go to any site, it says "DNS look up failed" I tried everything to completely resetting netgear to unplugging, wait 30 sec. Then plugging t back in. Nothing.

The thing I noticed though, is that it keeps on giving my the wrong ip address. Like before when it use to work, it would be 192.168.1.X but now it says it's 192.168.16.X, and when it changes to the wrong one, my Internet goes down with it, and i checked that the internet protocol version 4 is set to get ip address automatically, but it still happens. And when I restart my computer. It gives my the right ip address, then after 5 min. It changes to the wrong one. And this is not only on my desktop. My iPhone and laptop also get te wrong ip,

Any help guys? I'll give you 10 points if you can resolve this issue! Thanks

P.S i'm sorry, its actually my DNS server that is changing, my ip is fine. Ex. My ipv4 address is 192.168.16.X instead of 192.168.1.X

Best waterproof iPhone case?

My family are taking a trip to orlando and I want to get a waterproof case for mine (4s), just so I can keep it safe in my pocket on water rides. Are there any good ones with a wrist strap and even the ability to take pictures too?

How to sync music to my iPhone without deleting what is already on it?

I added songs ripped from CD's to my iTunes music library at my other house and now I need to sync to my phone without deleting what is already on it. Most of the solutions I have seen involve selecting manually manage music in the device options but when I do that it tells me that it is synced with another iTunes library, and in order to select this option it makes me sync from this computer (which would delete what I have now). I want to do this as soon as possible and therefore can't go onto the first computer at my other house.

My iPhone 4 won't let me download anything?

I've keep trying to dowload an app but It goes to my screen, says "waiting… " for 5 seconds, then just disappears. I've turned off my phone and it still does it… Please help!