![]() The HP "expert'" suggestions were of no help. It took me over 15 hours of effort before I found thirst_strong's and was successfull. It appears that some event causes the printer to default to the SigmaplusEOL1 network name and the only way to undo it is to reconnect using this default network name and then change the network name back to what it originally was.Before proceeding, make sure to write down your router wireless settings. Hope this helps for those with C4780 or similar. Unfortunately, HP "partially" sunset the Mac support for previous models. Now the printer is working on my wi-fi network without USB connection. Click on +, the HP printer should also say Bonjour as “Kind”.Click + to add printer…should see a listing for the network printer – click on it. On MacOSX, go to System Preferences > Printers & Scanners.Go back to router setup and put back original SSID and WEP settings. ![]() Configure settings exactly as what it was originally before (SSID and WEP password). In printer’s portal site, go to Network tab > Connections > Wireless (802.11) > Wireless Setup.In General Information section, type in printer’s URL on web browser. On printer, you should see the signal bar now.From the details, go to the router settings and rename SSID to the default printer’s SSID (e.g. On printer, Print Network Configuration page.On printer, go to Scan > Wireless Menu > Wireless Settings > Restore Network Settings.(Please note: this was done on MacOSX 10.9) There seems to be a flaw in the design or software of the printer that forces it to change to some default network and there is no install wizard that works with Mac OS wrote: I has no such luck with the basic info the HP "experts" provided. Although I had had an initial issue of accessing the printer's portal, I was eventually successful and made the changes. Business PCs, Workstations and Point of Sale SystemsĮr 12 hours of searching and reconfiguring I found your post.Printer Wireless, Networking & Internet.DesignJet, Large Format Printers & Digital Press.Printing Errors or Lights & Stuck Print Jobs.Notebook Hardware and Upgrade Questions.One other thing that happens during this internet problem is that multiple computers in the house display an "IP conflict" message repeatedly, and extremely frequently (as often as every five to ten minutes, and every time a connection to the wireless is made). Why would the printer getting on the network cause the router to not be able to access the internet correctly until it was reset? What can be done to allow the printer to be on the network without breaking the network for all other devices? Router firmware: V1.0.0.22_1.0.17 (Stock, up to date firmware) ![]() It looks to me like this problem is probably a result of a firmware conflict between the printer and the router, but I'm not sure how to fix that problem. The Netgear router has the latest version of the firmware, but the printer/scanner is very old. The only thing that will fix it at that point is to reset the router to factory specs, and unplug the printer so it can't get back onto the network. Any time the printer gets onto the wireless network, the whole network stops connecting to the internet almost completely. We eventually figured out that this happens every time our HP printer gets onto the network. The network connection would stay active and the computer would say it had an internet connection, but you couldn't do anything online except for using Skype. Almost right away, the new router started having exactly the same problems as the old one did on current firmware. A while later, we got a new Netgear router. The only solution to this problem seemed to be resetting the router to factory defaults.Įventually, we solved this problem by just downgrading the router firmware. For example, you couldn't open new pages in the browser, but if Skype was running when the problem happened, you could keep talking to people. Each time this problem would happen, every device in the house would stop being able to make new connections to the internet. Immediately, we started having trouble connecting to the internet. A few months ago, we upgraded our Netgear router's firmware.
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