topic Re: Cannot print in Wireless

Cannot print

trantriduc1610 — Mon, 11 Aug 2025 08:02:30 GMT

I have the problem like that:
- When I connect the printer Bixolon R310 (BXL/POS) to AP Cisco ( local mode) of WLC2500 and AP Cisco (flex mode) of EWC C9115, I can print normally.
- When I connect printer Bixolon L310 (SLCS,BPL-Z,BPL-C) to AP Cisco ( local mode) of WLC2500 I can print normally, but if I connect to AP Cisco (flex mode) of EWC C9115, I can't print ( but can ping normal)

Re: Cannot print

Mark Elsen — Mon, 11 Aug 2025 08:13:43 GMT

- @trantriduc1610 What error do you get on the client when trying to print ?

Re: Cannot print

trantriduc1610 — Mon, 11 Aug 2025 10:07:52 GMT

No information error in client.
So I check log in the server Linux ( Source reques print):

2025-08-11 14:30:38.909 [Timer] [INFO ] MessageSender - Sending message: routingKey printer-routing-key, message= Message [type=1, no=null, msg=17279]
2025-08-11 14:30:42.563 [Timer] [WARN ] PrintingLabelTask - Could not connect to printer 172.24.23.124:9100

Re: Cannot print

trantriduc1610 — Mon, 11 Aug 2025 10:09:39 GMT

so i don't know if there is any configuration missing or service on EWC?

Re: Cannot print

MHM Cisco World — Mon, 11 Aug 2025 10:15:24 GMT

Printer in flex is reachable by AP ?

Flex the switching is done by AP not tunnel to EWC

MHM

Re: Cannot print

trantriduc1610 — Mon, 11 Aug 2025 10:22:04 GMT

Tks !

I was test again with model L310. If I connect to AP (flex mode from WLC2500) I still cannot print, just can ping.
So if I want to print L310 with connect AP from EWC C9115, I need to do what?

Re: Cannot print

trantriduc1610 — Mon, 11 Aug 2025 10:27:58 GMT

I think the problem is flex mode.
Because when i recheck: connect printer to AP flex mode from WLC2500, I still cannot print, just ping only.

Re: Cannot print

MHM Cisco World — Mon, 11 Aug 2025 10:37:54 GMT

I was test again with model L310. If I connect to AP (flex mode from WLC2500) I still cannot print, just can ping. <<- key here

Ping no print

Do you use any ACL under SVI in SW?

MHM

Re: Cannot print

Mark Elsen — Mon, 11 Aug 2025 10:49:14 GMT

- @trantriduc1610 Check 'printing reachability' from you wireless client using :
nmap -p 9100 -sV --reason 172.24.23.124

Re: Cannot print

Mark Elsen — Mon, 11 Aug 2025 16:31:10 GMT

- @trantriduc1610 I would also advice that you have a test and or try disabling peer-to-peer blocking for the
particular WLAN : (GUI) Configuration > Wireless > WLANs.
Click the WLAN ID of the SSID you want to modify
Go to the Advanced tab.
Locate the P2P Blocking drop-down menu
Select Disabled to turn off P2P blocking
Click Apply to save the changes

Re: Cannot print

trantriduc1610 — Tue, 12 Aug 2025 00:43:14 GMT

Yes, I have ACL in Core switch, but I already permit for this vlan.

Re: Cannot print

MHM Cisco World — Tue, 12 Aug 2025 01:17:13 GMT

Add to this acl

Ip deny deny log

And check log

MHM

Re: Cannot print

trantriduc1610 — Tue, 12 Aug 2025 03:53:45 GMT

Actually, I have already disbaled p2p

Re: Cannot print

Mark Elsen — Tue, 12 Aug 2025 05:43:48 GMT

- @trantriduc1610 Ok, Check 'printing reachability' from you wireless client using :
nmap -p 9100 -sV --reason 172.24.23.124