Yes, The Printers are indeed connected to the network, I can see their hostname on the DHCP server leases and I can access their web interface by going to their IP on a browser, It just that when printing from a computer sometimes the printer gets stuck and takes sometimes up to 10 minutes to print it, this behaviour didn't happen with the old router.Just to ask the really obvious question:
You did connect your printers to the network, right?
And the less obvious question:
How are you attempting to connect to your printers, by IP or DNS name? Can you ping the printers by IP their IP address?
Hmmm this might be my issue, the printers have dynamic IPs but the desktop computers arent, I didn't know this could affect communication between devices, still, this doesn't explain my issue with Airprint problem because both my cell phone and printers have dynamic Ip and are both connected wirelessly.Even more obvious question. Still using the factory configuration? have you tried disabling the rules (dunno remember if and what kind of rules it has) and try to connect again? maybe your printers have static IPs and your computer gets an IP from DHCP so there is no connection? Check your IPs and ping the devices one by one to see if you have any connection.
export the config of the router and upload it here (deleting any secrets you have of course) and help us help you
Yes, I am judging the ports based on the activity LED, obviously I tried plugging a computer to it wish did nothing on the ports 2,3,4 but worked fine on port 5. On the interface, I clicked the Cable test button and some of the cable pairs appeared as shorted. I did the Reset in which you have to unplug it, press the button and wait for the USR blinking led. I didn't upgrade the bootloader tho, I'll try doing it to see if it changes something.If you are judging the function of ports 2, 3 & 4 based on the LED's on the top of the router then it is normal for them to be off if nothing is plugged into them.
As others have suggested, your printer issues are probably a function of their current setup rather than something to do with the router.
I would do a reset of the router using the reset button on the Quick Set page or the reset button found at System/Reset Configuration. I've found that my RB951ui-2HnD's need a reset after the upgrade before I can access them using the MAC address in Winbox. I don't understand why this is but I assume it has something to do with the changes involved in v6.41. Did you go to System/Routerboard and upgrade the boot loader after you upgraded to v6.41?
A button reset using the recessed button on the front of the router requires that you remove power, hold the button in, reapply power while continuing to hold the button for 5-6 seconds till the ACT light starts to flash on the front of the router. I wouldn't use this reset method unless you aren't able to access the router by any other means. It is possible to break or damage the button.
# jan/17/2018 11:21:02 by RouterOS 6.41 # software id = J1ID-321U # # model = 951G-2HnD # serial number = 642F066C4E76 /interface bridge add admin-mac=6C:3B:6B:12:F2:5F auto-mac=no comment=defconf name=bridge /interface wireless set [ find default-name=wlan1 ] band=2ghz-b/g/n channel-width=20/40mhz-Ce disabled=no distance=indoors frequency=auto mode=ap-bridge ssid=paneporsa wireless-protocol=802.11 /interface list add comment=defconf name=WAN add comment=defconf name=LAN /interface wireless security-profiles set [ find default=yes ] authentication-types=wpa-psk,wpa2-psk mode=dynamic-keys supplicant-identity=MikroTik /ip pool add name=dhcp ranges=192.168.1.10-192.168.1.254 /ip dhcp-server add address-pool=dhcp disabled=no interface=bridge name=defconf /interface bridge port add bridge=bridge comment=defconf interface=ether2 add bridge=bridge comment=defconf interface=ether3 add bridge=bridge comment=defconf interface=ether4 add bridge=bridge comment=defconf interface=ether5 add bridge=bridge comment=defconf interface=wlan1 /ip neighbor discovery-settings set discover-interface-list=LAN /interface list member add comment=defconf interface=bridge list=LAN add comment=defconf interface=ether1 list=WAN /ip address add address=192.168.1.1/24 comment=defconf interface=ether2 network=192.168.1.0 /ip dhcp-client add comment=defconf dhcp-options=hostname,clientid disabled=no interface=ether1 /ip dhcp-server lease add address=192.168.1.101 client-id=1:0:b:82:9a:5c:a2 comment="PBX Biratesa" mac-address=00:0B:82:9A:5C:A2 server=defconf add address=192.168.1.100 comment="PBX Paneporsa" mac-address=00:0B:82:9A:5E:30 server=defconf /ip dhcp-server network add address=192.168.1.0/24 comment=defconf gateway=192.168.1.1 netmask=24 /ip dns set allow-remote-requests=yes /ip dns static add address=192.168.1.1 name=router.lan /ip firewall filter add action=accept chain=input comment="defconf: accept established,related,untracked" connection-state=established,related,untracked add action=drop chain=input comment="defconf: drop invalid" connection-state=invalid add action=accept chain=input comment="defconf: accept ICMP" protocol=icmp add action=drop chain=input comment="defconf: drop all not coming from LAN" in-interface-list=!LAN add action=accept chain=forward comment="defconf: accept in ipsec policy" ipsec-policy=in,ipsec add action=accept chain=forward comment="defconf: accept out ipsec policy" ipsec-policy=out,ipsec add action=fasttrack-connection chain=forward comment="defconf: fasttrack" connection-state=established,related add action=accept chain=forward comment="defconf: accept established,related, untracked" connection-state=established,related,untracked add action=drop chain=forward comment="defconf: drop invalid" connection-state=invalid add action=drop chain=forward comment="defconf: drop all from WAN not DSTNATed" connection-nat-state=!dstnat connection-state=new in-interface-list=WAN /ip firewall nat add action=masquerade chain=srcnat comment="defconf: masquerade" ipsec-policy=out,none out-interface-list=WAN /ip upnp set enabled=yes /ip upnp interfaces add interface=bridge type=internal add interface=ether1 type=external /system clock set time-zone-name=America/Tegucigalpa /system identity set name=MikroTik-Paneporsa /tool mac-server set allowed-interface-list=LAN /tool mac-server mac-winbox set allowed-interface-list=LAN