First off, your issue is not MLO related, except to the degree that MLO 
uses an ip address instead of doing name resolution (which would have other 
issues on home networks). 

Here is how a machine gets an address.

Every network card has a unique, factory assigned machine address - a MAC. 
Your machine boots up and broadcasts on the network "hi, I am MAC x, and I 
need an IP address. Last time, someone gave me 192.168.0.100 (for 
example).". The dhcp server hears this, looks up MAC address x in its table 
of assigned addresses, and responds " hi x, use 192.168.0.100 for period z."

Period z is a configuration option, and is typically a few weeks.  You want 
it long enough to allow for a dhcp server failure without all your 
addresses expiring, and short enough to be able to change the network 
addressing scheme without having to wait months for stragglers to ask for a 
new address. Which brings me to...

When your machine gets to 50% of period z, it will ask again for an address 
agian. Your dhcp server, which is likely your router, will answer with the 
same one it gave before - because it is keeping records, and assigning the 
same addreseses to the same MAC's will lessen problems like the one you are 
having.  

So what will change the address?  Anything that:
1. Changes the MAC on your machine - such as a new network card. 
2.  Anything that makes the server lose its records, such as resetting it 
(the router), or maybe, depending on the model, rebooting it (though I 
doubt a reboot would do it). 
3. The ip address getting to 100% of z - either because you have done 
something silly like setting the lease time (z) in seconds instead of days, 
or because your machine was off for weeks.  Setting the lease time short 
may do it because the router or your pc is too busy to negotiate the 
address in time. If the address expires, it might get a new one, depending 
on the dhcp implementation and whether or not another machine grabbed the 
now free address while is was expired. 
4. Someone going into the dhcp server and deleting the record.  This might 
be done if someone else hardcoded the same ip address on their machine, and 
the administrator deleted your reservation from the server to fix the 
conflict without having to find real culprit (the nitwit who assigned 
himself a fixed address in a range served by a dhcp server.). 

Solution:. Create an address reservation in the router's configuration for 
your PC's MAC address - or do not reset your router.  Alternative, assign a 
fixed address to your machine on your machine, being careful  to ensure it 
is not an address managed by the router (this solution is not practical or 
smart unless you have a tiny network or a huge IT budget).  Or, lastly, ask 
MLO to use dns names instead of ip addresses for wireless sync - but then 
you will be posting about your iPod touch being unable to find your windows 
pc, or something like that. I would assume that Andre chose his poison. 

Once again, none of this has much to do with MLO, but I hope it helps

On Thursday, 1 November 2012 10:34:26 UTC-4, Beau Williams wrote:
>
> Over the last couple of years or so, I've incurred a strange issue with my 
> Wi-Fi sync; the sync works normally for months, then suddenly doesn't 
> work.  When I dig into it, I discover that the IP address on my laptop has 
> changed (meaning that my tablet can no longer find it).  I've had to 
> unpair, pair to the new IP, then re-sync.  Of course, this is a bit of a 
> bother, but one time, I had not realized that my sync settings were 
> backward, and I ended up having to rebuild my entire outline from memory.
>
> Anyway, there is no pattern to this issue that I can identify, nor does it 
> appear to be related to any event(s) as far as I can tell.  So, I have NO 
> idea what's going on or how to address it.  (It just happened again...a few 
> minutes before writing this message.)
>
> Does this sound familiar to anyone...if so, how did you fix it?
>

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