Hello
I have an HP 15-bs0 laptop with Windows 10 1703 and a Brother MFC-J870DW printer. When it wakes up from sleep, the scanner will not work. Windows Fax and Scan says "No scanners detected" I have to reboot the thing to get it going again. Why is this happening, and any way to fix it?
Thanks in advance
I was having the same problem with a Brother Laser Jet and two HP printer scanners. I found that it was my Netgear router. I replaced it and haven't had a problem since. I diagnosed that it was the router by resetting the router and not touching the printers. As soon as the router restarted my documents started printing.
IP address changed.
Depends on the DHCP server in your network that automatically assigns IP addresses, I think for some lease time.
Normally this would be a task for the Router but some devices can also be a DHCP servers.
The usual answer is to use fixed IP addresses for each device.
When I had an HP Printer I looked up what was assigned in the Router(Netgear) and compared that to what the HP Printer was using.
If those two were different the printer would not work. I just used the HP software to change the Printer IP address to correct. That would always work unsurprisingly.
Resetting the Router would also assign a different IP address, assuming it was the DHCP server.
I now have a Canon printer/scanner which seems rather better with getting the assigned IP address.
What did you replace your Netgear router with? But I do not think the router is at fault as I changed mine recently too. Moreover, I have a Windows 8.1 Dell laptop and when I wake it up the Brother scanner works fine. My guess is the Brother device or Windows 10 as the issue. Also my problem is with scanning not printing.
Well I rarely turn off the Brother device so that IP address cannot change, and when I shut it down and back on the IP address is the same as before.
I doubt the Brother device has a DHCP server on it but how can I check that for sure?
I may try using BRAdmin to set a static IP and see if that helps with anything.
Yes this is a good thing to look at and I have done just that so far The Router shows the same IP that the Brother device also has. This may mean the Router is the DHCP server in this case.
I have not come across a time where the IP address did not match but will pay attention for that. And Brother has one called BRAdmin Light or Professional that does the trick.
I want to avoid resetting the router as that will give out a new IP address but like to keep it the same.
I use to have an old Canon inkjet but it broke on me a long time ago so have stayed away from them.
@seskanda I replaced my old Netgear Nighthawk AC1900 WiFi router with a Netgear Nighthawk AC2600 WiFi router. Before I replaced the router I would have to unplug my printers before they would print. Even pinging my printers wouldn't wake them. One day when my printers wouldn't wake I decided to try hitting the reset button on the router. When the router restarted both printers started printing. After successfully trying this a couple of time I decided that it had to be the router. Since replacing the router I haven't had any problems with my printers. I can't say for sure that the router is your problem but it was for me. Outside of hitting the reset button or unplugging and replugging the router in I don't know of any other way to test it.
That is a very similar router to the one you had before. I would of tried to update the firmware on it first. This is fine and well but I’m not having printer problems to begin with. I would look at a way to turn off sleep mode on the printers. Not too many routers even have a reset or on/off button so you lucked out here. Not surprised by anything here. This really does not apply to my issue as I’m able to print wirelessly. And as I stated already the IP address of the Brother device does not change when it is shut off and on again. I almost 100% sure the router is not at fault or else I’d see something to give that away.
It was updated to the latest firmware. In fact the firmware was updated twice after I started having problems. I was always able to print wirelessly. I only had trouble getting the printers to come out of sleep mode. It was expensive but it fixed my problem so I'm happy. If it didn't work I was going to return it to the store.
I see that is good to know. if that is the case then you needed to downgrade rather than upgrade the firmware and that may have fixed this. That means your router worked fine. I do not think the router has any control over sleep mode on a printer. True can be costly but worth it if that solved the issue. Yes I'd have done the same thing too if in your shoes.
I don't think a downgrade to the firmware would have helped. The problem started with a firmware version that had worked trouble free for some time. It was a intermittent problem and my guess is that for whatever reason the router would occasionally stop sending a signal to wake the printers. Did you find a solution for your problem?
Most of the time it is not possible to downgrade the firmware anyhow so no way to be sure. Interesting that means the firmware had nothing to do with the problem itself. The issue I'm having now is also intermittent my understanding is that router simply sends a signal to the printer but cannot wake at all. No do you or someone else know another thing to try?
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