I think I'm having a similar issue, but with printer connectivity across the network.

Its weird, but we have two networked HP laser printers at home. Up until three days ago, they worked fine. But now they aren't. I can ping them just fine from the router interface, comes back solid. The two wired computers in our house both see the printers fine (one mac G5 os10.4, one DIY win XP sp3) but our two laptops (Powerbook G4 10.4, Macbook Pro 10.5.6) can't see the printers over the wireless network. It's really weird! If I turn on printer sharing on the G5, then the Powerbook can see the printers. The MBP cannot.

Both printers are network enabled. Everything is plugged directly into the router, no other switches or hubs.

We have FIOS, but our router is a Verizon MI424WR router. I will say our wifi connectivity is not that consistent, but if I'm sitting right next to the router it's ok.

Any ideas?

Our network looks like this:

Verizon MI424WR router
-Ethernet port 1: Win XP PC
-Ethernet port 2: G5 Tower
-Ethernet port 3: HP 2605dn printer
-Ethernet port 4: HP 4700 printer
-Wireless: Wii (works like a champ!)
-Wireless: Mac Book Pro
-Wireless: Powerbook G4

I think I am having a similar issue. Mine is with printers though. We have FIOS with a Verizon MI424WR router. Our wireless connectivity isn't that bad, not super.

Up until three days ago, we had two HP Laser printers networked that worked just fine. We could print from our two wireless connected laptops no problem. Now, we can't. I tried to re-load the printer on my machine, and the printers aren't even detected

From the router interface, I can ping away at the two printers and get successful results. But I cannot detect them from the either laptop System Preferences.

Our network is:
Verizon MI424WR router
- Ethernet Port 1: Win XP PC
- Ethernet Port 2: Mac G5 Tower OS 10.4
- Ethernet Port 3: HP 2605dn Printer
- Ehternet Port 4: HP 4700 printer
- Wireless: Wii (works just fine!)
- Wireless: Mac Book Pro OS 10.5.6
- Wireless: Powerbook G4 OS 10.4

Everything is plugged directly into the router, no switches.

If I turn on printer sharing on the G5, the Powerbook can see them, but not the MBP. It's weird. I'm clueless. Well, that's normally the case...

You might get better help if you post a separte thread
 

You might get better help if you post a separate thread since this one is mostly about self assigned IPs and wireless reliability.

---That said I'm easy....

You indicate that the wireless is just OK. Does it drop? Is it weak? You primarily have a wired network. If I remember correctly the Default Ip of the Action Tec router is 192.168.0.1.
-Is everything assigned an address in that Lan via DHCP or Manual, e.g. The computers/printers would all be 192.168.0.x 192.168.0.2, 3 etc.
-What are the addresses of the Printers? Are the printers defined with this address as Printers on the wireless Macs?

You will find it more reliable to either give the printers manual and permanent addresses on the Lan or reserve the address on the router. I would recommend the former. Generally you can do this from the printers panel or from HP configuration software on a wired computer.

***I would start with the Obvious can the wireless mac computers ping the printer and router? Is the that printer address how the printer is defined in your printer set up on the Macs. Either way you might want to start also by deleting the printers from the wireless Macs that are having the issue and re-add them. For clarity please update the info you provided to include Ips and whether they are manual or DHCP.

I thought about starting a new thread, but I guess this wasn't quite that similar!! And sorry about the double post. I didn't realize my first one was being "moderated"!

Thanks for the answers... here's some more info:
First, resetting the router (turning it off) has made everything work for the time being. I suspect the problems will reappear though.

Everything is DHCP.

The printers addresses are dynamic... but I am using bonjour to connect to them? On my MBP w/ 10.5.6 I can also (now post-router reset) see them also by HP IP protocol. I assume though that If I go this route I'll need to assign the printers a static IP?

Okay. I think I can manage that!

I have to admit, I know how to ping something on a PC, but I don't know how on a mac :D I've only been using them for a year or so... I assume it's through terminal? (The googles will provide me with a tutorial I'm sure!)

And I have deleted the macs, which was horrifying, because I couldn't see them to add them. Well at least until I reset the router. Then I was able to add them back!

Okay, my homework is:
- assign static IP to each printer via the printer control panel
- ping each printer's IP from the wireless computers

Thanks. This has been very helpful information.

Yes you can pint from Terminal:) Only differences are if you want continuous or to control packet size which is not relevant for your issue.

Indeed static or reserved will make things better. DHCP is great but when not everyone knows where you have moved to it makes for grief.

Almost 4 years later and I was having the problem again. My setting was still on Auto. I changed it to 54, then changed it back to Auto again. Problem solved again. Here is another reference link: http://forums.verizon.com/t5/FiOS-In...nly/td-p/10483