I was recently sent to an executive's home to work on their wireless printing issues. The exec has an HP e7600 series printer. The printer connects and communicates with the wireless router, and for about 30 seconds, everything is great. After about 30 seconds, however, the printer loses connectivity. There are both a desktop and a laptop, both running Windows 7 with all relevant updates, and neither will talk to the printer for more than approx 30 seconds of when it comes up. Windows doesn't recognize the printer, the printer doesn't recognize the network, and a ping to the printers IP address returns nothing but failed attempts.

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I assumed bad printer, so I disconnected the printer and hooked up their old e7500 series printer. Exact same behavior. The printers not only will not talk to the computers, they also will not get any of the HP cloud print documents (calendars, word searches, those things). The exec has a Time Warner/Spectrum modem with an Asus AC900 router. I haven't tried resetting the router (that's probably next step), but I was wondering if anyone else has any thoughts or suggestions on what could be causing this.Thanks in advance!

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Hello @Jim1506, thank you for your post; we also appreciate the very helpful input provided by the other IT Pros and @The Repairatrooper's tag. See also the feedback from our consultant:#########I am a little bit worried that the wireless print server coulddisappear in the public environment of the hospitals. But it is a goodsolution.As Jbakervt pointed out HP wireless direct and Wi-Fi Direct would be anoptimal solution for you.'

HP wireless direct and Wi-Fi Direct are features that allow your Wi-Ficapable devices (for example: smart phones, tablets, or computers) to make awireless network connection directly to your printer without using a wirelessrouter or access point. You connect to your printer’s HP wireless direct orWi-Fi Direct signal the same way you connect your Wi-Fi capable device to a newwireless network or hotspot.' But as Spartan117458 noted, HP LaserJet Pro 400 Printer M401dn doesn't possesswireless capability, which is incorporated into the HP LaserJet Pro 400 PrinterM401dw.Luckily, the wireless card of the M401dw printer is just plugged into theexisting socket on the M401dn printer's formatter. To answer as many questions as possible at once:The printer does maintain its IP address.

I haven't tried static, I could try that.I need the full function print driver, the exec wants to use the printer to scan as well as print, and he has to do color printing using the HP print software (not for business purposes, but executives.)I will try hard wiring the printer and see if that makes a difference.The wireless network's SSID is broadcasting.I realize now I should have mentioned in my previous post that the printers will answer a ping when they initially power up, but after approx 30 seconds they stop answering. #######Follow please bullet points relevant to your configuration from this post.Mainly:● update firmware on the printers● check and set time of the entire network and all devices● disable WSD and LPR● apply SNMP fix● install Windows 7 SP1 x64 network printer offline patchesKeep SSID broadcasting. There is no reason to hide it.If the Time Warner/Spectrum modem has wireless then disable it.I think you mean Asus AC1900 Dual-Band Wi-Fi Gigabit Router and not AsusAC900 router, which could be Asus USB-AC53 AC900 Dual-Band WiFi USB Adapter(900Mbps AC).I would update router's firmware and disable all unused options.Also set 2.4 GHz band wifi to g and n only.Make sure the router is vertically positioned, all wrapping material has beenremoved (the plastic thin film decreases signal strength by 15-30%) and hasproper cooling.Are you using USB 3.0 port on Asus AC1900? If yes, disable ittemporarily for testing. If not, disable it permanently due to possibleinterference with 2.4 GHz band.' USB 3.0 or SuperSpeed USB.

has a 5 Gbit/s signaling rate. The USB 3.0specification requires USB 3.0 data to be scrambled and it requires spreadspectrum to be applied on the clock.As previously shown in Figure 2-2, the noise from USB 3.0 data spectrum can behigh (in the 2.4–2.5 GHz range).

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This noise can radiate from the USB 3.0connector on a PC platform, the USB 3.0 connector on the peripheral device orthe USB 3.0 cable. If the antenna of a wireless device operating in this bandis placed close to any of the above USB 3.0 radiation channels, it can pick upthe broadband noise. The broadband noise emitted from a USB 3.0 device canaffect the SNR and limit the sensitivity of any wireless receiver whose antennais physically located close to the USB 3.0 device. This may result in a drop inthroughput on the wireless link.'

I haven't been able to wake my computer remotely since I updated to 10.10.4. Even if I downgrade back to 10.10.3 with no other changes it will work again. I have used an app called RemoteBoot previously to wake it from my phone and ipad, but that's no longer working. I have also tried using teamviewer to wake it remotely.

Wake will work if I do it within a few minutes after it goes to sleep. If you wait too long it is as if the system goes into a hibernation mode where the system no longer accepts network packets to wake.

The results are the same in 10.10.5 also.

Sep 22, 2015 11:44 AM