sounds like a latency problem to me.......try to increase midi buffers

I opened a project I recorded a few months ago. Went to an audio track on that older recording and started to record with metronome. Metronome is right on. No problem with latency. And yet with any new recent project, even when I record a few measures with the metronome, when I play back, the metronome is now not in sync to what I just recorded. I did A/B the old recording preferences with the new and everything looks the same. I'm now going to record a drum sequence on the first track and see if I can work with that rather than the metronome. Can't figure it out. Thanks everyone for suggestions.  

For recording, 9.0ms is fine.
 
Once you've finished tracking and start adding cpu & memory hogging fx, you'll probably need to increase the latency which isn't a problem when you're done with tracking.

But hold on, That adjustment should have nothing to do with tracks syncing up?  And not only that, That is a preference stting and loading another project would not have changed your preferences. Maybe what was happening is you were recording while having input echo on so somehow playing along to latency, but that still is a bit confusing.  
And the latency slider is not available in ASIO mode, You make that adjustment with your audio interface control panel, So something is still not set up right here. I think your using the wrong timing master , not in ASIO mode and your system has very noticeable latency which you are monitoring. 

I agree with Johnny - making the latency faster would solve your problem with delay between the keyboard and sound coming from sonar, but it should not affect the metronome.
 
WASAPI drivers for the UA25 might be an issue.  you said ASIO drivers didn't work, but you didn't say why.  ASIO the Roland UA25 should have solid ASIO drivers which work correctly and they would be the preferred ones to use which could be causing your other issues.
 
I would suggest you download the latest drivers for the UA25 from Roland, install them, then change to ASIO driver mode and see if that doesn't solve thing.s

Thanks for the input. The WASAPI driver mode seems to put things back to where they were and so I'm content. What's the difference between WASAPI and ASIO? I have the latest drivers installed from Roland. When I tried to apply ASIO it comes up that I'm missing Output devices and to reassign. Then when I look in preferences-devices- then input/output drivers section is empty. It seems to mess things up. I'm not sure how to correct. That being said, when I go back to WASAPI driver mode, everything seems ok. If it's not broke, why fix it? Feedback pls? And thanks...

And re reading your answer..  the message about the output devices , that happens when you have used a different audio interface and change sometimes. Say if the old one used a different naming system ?? Anyhow I'm thinking what I would do is 
1- Go to the Roland Website and double check that you have the most up to date driver that matches your OS ( 64 bit etc)  Make sure you always use the same USB port you used to install the drivers. 
2- If it's possible, I've not familiar with WASAPI, un install it completely. 
     This might involve disabling your on board audio. You can always re enable again. 
     If you have a nvida video card then the HD driver needs to be disabled. read  post # 56
http://forum.cakewalk.com...osted-m3074655-p2.aspx
     If you have asio4all nuke 101% completly,  this is truth, don't listen to others...
     If you have any Creative driver nuke them too... more truth... 
3- Open Windows Audio devices and set the Roland as the default audio device. 
4- Open Sonar / Preferences/ Audio and set to ASIO, re start Sonar.  
You should now see the Roland as your ASIO device and as your timing master  (the root of your issue)
If you get the re assign outputs, then do that, check your master is set to the Roland 1/2 for each project as you re open them. Once set those projects will work forever. I've had mine reset when I open old projects created with another interface, this is normal.  
 
 

dotonemanband
I've gone through the steps. I've only used the UA-25 with this present computer so there hasn't been another audio interface. In my windows audio devices the UA-25 is the default in/out. I'm not sure how to uninstall the WASAPI. When I change over to ASIO in Pref/Audio/Playback&Recording, and then restart Sonar, I first get a notice that (before Sonar opens) ... there are no audio devices/go to edit/pref/choose a different driver. So I open Sonar and ASIO is showing but no sound. In edit/pref/driversetting/ the playback and recording timing master section is blank. This is where I'm uncertain of how to correct this. Thanks JohnnyV for your assistance so far.

there's almost always another "audio interface" - unless you bought a motherboard without a "soundcard" then your computer DOES have another "audio interface."  as far as windows and sonar are concerned, it does not matter if the soundcard is just a chip on the motherboard or a UA-25 or a $10,000 Digidesign desk.  they're ALL soundcards with inputs and outputs.
 
but I also stress again, and Johnny did as well:

1- Go to the Roland Website and double check that you have the most up to date driver that matches your OS ( 64 bit etc)  Make sure you always use the same USB port you used to install the drivers. 

Also, when I edit/audio/devices, there is nothing showing to reassign ...

My computer is set to automatically update windows. There was even an update today. But that hasn't changed anything. The playback/recording timing masters are still blank. Any other suggestions to get ASIO my default driver mode? I went to this site ... http://www.cakewalk.com/Support/Knowledge-Base/Audio-Hardware-Setup-Guide?audioMake=Roland&audioModel=UA-25EX&product=SONAR+3+Producer but not sure when it says go to "options-audio-advanced" Still working on it ...