VMware/Parallels shared printer lag — bridge vs NAT and latency

Joe B.

Reviewed for technical accuracy

Specialities: Windows 11/10, macOS (Sonoma/Ventura/Monterey), Printers, Networking, Office Equipment, Virtualization (VMware/Parallels)

Fix VMware Workstation/Fusion & Parallels printer delay — bridged vs NAT, USB passthrough, IPP/RAW 9100

Technician

Hey! We’ll fix your VM shared printer lag. Tell me your setup: VMware Workstation / VMware Fusion or Parallels Desktop? Host OS and guest OS? And is the printer connected by USB passthrough or shared over the network (IPP/LPR/RAW‑9100)? Also confirm whether the VM uses Bridged, NAT, or Host‑Only networking.

Customer

Parallels Desktop on a Mac (Sonoma). The Windows 11 VM prints to a Brother laser that’s on Wi‑Fi. Since moving to NAT, every job sits “Spooling” for 20–40 seconds. Sometimes the shared printer duplicates after updates.

Technician

Got it. In VMs, NAT printing latency usually comes from DNS relay and translation overhead, mDNS/Bonjour discovery not crossing NAT, or the VM talking to the printer via the host’s print stack (CUPS on macOS) which adds a second spooler. Typical causes:
• NAT vs Bridged: NAT adds extra hops and can block Bonjour/LLMNR used by AirPrint/IPP.
• Two spoolers: Parallels “Share Mac printers with Windows” routes through CUPS → Windows Print Spooler.
• Protocol choice: IPP over TLS can be chatty; RAW‑9100 is faster on stable LANs; SMB shares can be slow with signing.
• Driver mode: GDI/host‑rendered queues are heavy; use vendor PCL/PS driver with bidirectional support off if needed.
Plan: switch to Bridged first, then add printer directly in Windows via TCP/IP RAW 9100 or IPP, remove duplicates, and tune spooler.

Customer

How do I change NAT to Bridged in Parallels and add the printer directly?

Technician

Parallels Desktop — switch to Bridged & add direct TCP/IP:
1) Shut down the VM → Parallels Control Center → ⚙ Settings → Hardware → Network → set Source = Bridged (Default Adapter).
2) In Windows 11, Settings → Bluetooth & devices → Printers & scanners → Add device → Add manually → “Add a printer using TCP/IP address” → enter the printer’s IP → protocol RAW 9100 (or IPP if required).
3) Install the vendor driver (PCL/PS). Disable “Share Mac printers with Windows” in Parallels to avoid double spooling.
4) Test: job should leave Spooling in 1–3 seconds on a healthy LAN.

Customer

What if we must stay on NAT because of a corporate VPN policy?

Technician

Keep NAT but reduce latency:
• Add the printer by IP address (RAW 9100 or LPR) instead of name to avoid NAT DNS delays.
• In Windows, set the port to SNMP status disabled to prevent timeouts. Turn off bidirectional support if status polling is slow.
• Ensure the Parallels/VMware virtual NIC is set to virtio/e1000e (not legacy) and enable Receive Side Scaling in Windows.
• On macOS host, verify the printer is on the same Wi‑Fi band/channel; reduce mDNS chatter by using IPP Everywhere or direct TCP.
• Check MTU (1500 vs 1492), QoS on routers, and minimize packet loss/jitter.

Customer

We also use VMware Workstation on Windows. The VM sees two printers: one “Redirected” via host and one TCP/IP. Jobs sometimes go to the wrong queue and hang.

Technician

VMware Workstation/Fusion tips:
• In VM settings, disable “Share printers with the virtual machine” if you add printers directly over the network.
• Prefer Bridged mode so the VM gets its own IP and talks straight to the device (RAW 9100 is fastest).
• Remove duplicate queues in Windows: Settings → Printers & scanners, keep only the TCP/IP queue. Clear stale WSD or USB ports in Print Server Properties → Ports.
• Update VMware Tools and enable modern virtual NIC (VMXNET3). This reduces printer latency and packet retransmits.

Customer

Some apps (Adobe/QuickBooks) still pause on “Spooling”. Anything else to tune in Windows?

Technician

Windows Print Spooler optimization (inside the VM):
• In printer Properties → Advanced: set Spool print documents and Start printing immediately. Disable rendering on client if using host shares.
• Use vendor PCL/PS driver (avoid GDI “host-based” on VMs).
• Turn off Status notifications and bi‑di if they trigger SNMP delays.
• Ensure the port type is Standard TCP/IP with RAW 9100 (or LPR with queue name) rather than WSD.
• Clear cache: stop spooler, delete contents of %systemroot%\System32\spool\PRINTERS, start service.

Customer

What about USB passthrough? Sometimes the Parallels USB printer pauses or disconnects.

Technician

USB printer in VMs: For stability, prefer network printing over USB passthrough. If USB is required:
• Lock the device to the VM and disable auto‑connect to host.
• Use High Speed (USB 2.0) mode; some printers misbehave on USB 3.0.
• Install the full vendor driver in the guest. Disable sleep/power‑save on the printer to avoid device resets.
• If the VM idles, suspend/resume can break USB; reconnect from the VM menu or switch to IPP/RAW over Ethernet.

Customer

We print from macOS apps into the Windows VM (RDP to a server). Does CUPS add delay?

Technician

Yes—when macOS CUPS renders the job then Windows re‑renders, you get double spooling. Best practice: print directly from each OS to the device using its own queue. For RDP sessions, publish a TCP/IP printer on the server (avoid client‑redirected queues) or use proven solutions like ThinPrint. This eliminates conversion overhead and improves latency and throughput.

Customer

Any network checks to prove it’s latency and not the driver?

Technician

Latency diagnostics:
• From the VM, ping -n 20 PRINTER_IP — look for < 5–10 ms and 0% loss.
• tracert should show 1–2 hops in Bridged mode; many hops implies NAT/VPN path.
• Send a small text job vs a heavy PDF; if only heavy PDFs lag, enable compress print data and reduce image resolution in the driver.
• Check router logs for multicast/mDNS filtering; enable Bonjour across VLANs if using IPP/AirPrint.

Customer

We changed to Bridged and added RAW 9100. Prints are instant now. Anything else to lock this in?

Technician

Summary: For VMware/Parallels shared printer lag, use Bridged networking so the VM talks directly to the device. Add the printer via TCP/IP (RAW 9100 or LPR/IPP), remove shared/redirected duplicates, tune the Windows Print Spooler, and avoid double spooling through CUPS. Need hands‑on help with bridge vs NAT, USB passthrough, IPP, RAW 9100, or driver optimization? Open the chat.

Quick answer: the accepted fix

Accepted fix when VMware/Parallels shared printer is slow: switch VM networking from NAT to Bridged, add the printer directly via Standard TCP/IP (RAW 9100 or IPP), disable host printer sharing to avoid double spooling, and turn off SNMP/bidirectional polling if it delays jobs.

FAQ

Step‑by‑step (Windows guest in VMware/Parallels)

1. Switch VM networking to Bridged (or stay on NAT and add by IP).
2. In Windows, Add printer → TCP/IP → choose RAW 9100 (or LPR/IPP).
3. Install vendor PCL/PS driver; disable SNMP/bidirectional if slow.
4. Remove host‑shared/WSD queues and stale ports; update VMware/Parallels Tools.

Step‑by‑step (macOS host with Parallels)

1. In Parallels, set Network to Bridged (Default Adapter).
2. Disable Share Mac printers with Windows to avoid double spooling.
3. From Windows VM, add the printer by IP address (RAW 9100/IPP).
4. Test with small and large jobs; confirm queue leaves Spooling quickly.

Sources

• Parallels Knowledge Base — Networking & printing
• VMware KB — VM networking modes (Bridged/NAT)
• Microsoft — Windows Print Spooler optimization
• CUPS Documentation — IPP & print paths
• Brother/HP/Canon/Epson — Printer drivers

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