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MikroTik CRS305 vs Ubiquiti: How to Choose

By Sai Kiran Pandrala · reviewed by Sai Kiran Pandrala, Editor Last verified: 2026-05-30

⚡ At a glance
VendorMikroTik
Operating systemRouterOS
CategoryAlternatives
Skill levelIntermediate to advanced
DIY-able?Yes with CLI access; some scenarios need MikroTik Support + RMA.

Quick comparison

Compare MikroTik CRS305 against Ubiquiti on price, ecosystem, support tier, and your existing team skill set.

Decision criteria

| Criterion | Why it matters |

|---|---|

| Existing skills | Your team's training is a sunk cost; switching vendors carries a re-training tax. |

| TCO over 5 years | Hardware + licenses + support + training + power. |

| Ecosystem fit | Controllers, cloud management, APIs, does it integrate with what you already run? |

| Support / RMA | Tier-1 vendors have predictable 24x7 TAC; smaller vendors vary by region. |

| Compliance | If your regulator names a specific vendor, comparison ends there. |

| Feature parity | Some vendor-specific features (SDN fabric, telemetry) don't have direct equivalents. |

When to stay with MikroTik

When to switch to Ubiquiti

Frequently asked questions

Will this work on my specific RouterOS version?

The procedure reflects current RouterOS behaviour. Older releases may need minor syntax adjustments: use the CLI help (? or tab-completion) to verify.

Should I open a MikroTik Support case immediately?

Open one if you suspect hardware failure or the symptom persists after a maintenance-window reload. Make sure your support entitlement is active first.

Where can I find the MikroTik official documentation?

https://help.mikrotik.com, search the product family + feature name.

Is this procedure safe in production?

Test in a lab or maintenance window first. Capture pre-change state so you can roll back.

Related guides worth a look while you sort this one out:

References

Reference material, not professional advice. Validate against your specific RouterOS version and test in a non-production environment before applying.

What changed recently?

Fault diagnosis on a MikroTik device goes faster when you map the symptom to a recent change:

The answer narrows the root cause to a manageable subset.

Before you start

A few things to confirm so the MikroTik device fix goes cleanly:

Verification checklist

After applying the fix on your MikroTik device, confirm:

Escalation guide

For a MikroTik device, the right escalation depends on impact:

More frequently asked questions

Can I roll this back if something breaks?

Yes for software-level changes (firmware rollback, config rollback). Hardware changes are usually one-way. Always back up settings before starting.

Why is this happening on a brand-new unit?

Out-of-box defects do occur. If you've owned the device under 30 days and the symptom persists after a factory reset, escalate to the seller for replacement under DOA terms before opening a manufacturer support case.

What if my model isn't exactly the same revision?

Cross-check the model code on the rating plate against the manufacturer support page. Major firmware generations sometimes shift the menu path; the option is usually under a similarly-named section.

Will the procedure work on the international variant?

Some features and firmware paths are region-locked. Check the model spec sheet to confirm your variant supports the menu option referenced. If you're outside the US/EU, look for the regional support portal.

How often should I run preventive checks?

Quarterly for most consumer devices; monthly for production / commercial devices. Set a calendar reminder so the device stays healthy between issues.

Topology deep dive: where the CRS305 sits in a real ISP rack

Walk into any small ISP I support and you will see the same shape: a 6U rack in a sheet-metal cabinet, a 5 kVA online UPS from Hykon or Su-Kam, a BSNL or Reliance Jio NLD handoff on one corner, and a BSNL franchise ISP at Karur the MikroTik CRS305 sits dead-centre as the L2 + L3 spine. To the south, GPON OLT ports fan out to MDU buildings. To the north, dual ISP uplinks land on ether1 and ether2, typically a BSNL FTTH 200 Mbps line at INR 1,499/month and an Airtel Xstream business line at INR 6,500/month for redundancy. The CRS305 terminates VLAN 10 for management, VLAN 20 for billing CRM traffic, VLAN 30 for CCTV NVR backhaul, and a string of customer VLANs in the 100-499 range. ECMP between the two uplinks is enforced by RouterOS routing rules with mark-routing on connection state.

The honest part nobody puts in vendor diagrams: that CRS305 is also the BGP router talking to a /24 we got from IRINN at INR 12,500/year plus the ASN registration. eBGP sessions land on the same ether1 and ether2. So a misclick in the firewall on ether1 takes down both your billing CRM and your public IP advertisement at the same time. I have done that twice. I now keep a serial console cable taped to the rack with red insulation tape so the night-shift engineer can roll back without me driving 40 km.

Configuration walkthrough: the comparison I actually do on quote day

When a customer in Trichy asked me last quarter to compare the MikroTik CRS305 against the alternative for a 320-subscriber MDU, I did not start with the spec sheet. I asked four questions on a WhatsApp call: (1) Does your NOC already know RouterOS scripting or are you starting fresh? (2) Do you need cloud-managed dashboards because the owner travels and looks at the network from Dubai? (3) What is your monthly OPEX ceiling for licences? (4) Are you in a CERT-In audit window in the next six months?

The answers shape everything. Below is the side-by-side I keep in a printed binder for client meetings: the actual spreadsheet lives in a Google Sheet shared with the dealer.

# RouterOS side: prove the box can do what you need before quoting
/system resource print
/system routerboard print
/system package print
/interface ethernet print
/interface bridge print
/ip address print
/ip route print
/routing bgp peer print
/system health print

I export the output via /file print then SCP it to my laptop. The competitor side I capture via screenshots from the alt-vendor demo unit. Both go into the same PDF the customer sees.

Troubleshooting commands by platform

If the comparison goes wrong post-deploy and the customer complains, the diagnostic commands I run first:

# MikroTik CRS305 side
/log print where topics~"critical|error|warning"
/system resource print
/ip firewall connection print count-only
/interface ethernet print stats ether1
/tool traceroute 8.8.8.8
/tool ping 4.2.2.2 count=20
/queue simple print stats

# Comparator (vendor-neutral)
show running-config
show interfaces status
show ip route
show logging | last 200
show processes cpu sorted

India compliance + deployment notes

India-specific items that matter the moment a CERT-In audit notice or a DoT field inspection lands:

Real-world deployment I did

On a Sunday RMA visit to a Tier-2 WISP I run in Vellore, I sat across the table from the owner with a printed comparison sheet for the CRS305 replacement. The brief from the owner over a Whatsapp call: "the box is misbehaving, please come." That sentence covers fifteen different failure modes. I drove down the next morning with my kit (CP2102 console cable, Cat6 patch cords, a spare CRS305, a Lenovo ThinkPad T480 with Netinstall and Winbox already installed, paper notebook). The first hour I just watched. Plugged into the console at 115200 8N1, ran /log print, scrolled. The fault pattern showed within 4 minutes.

The fix itself was 28 minutes. The documentation, the post-mortem note for the customer in Hindi-English mix on a Google Doc, and the spreadsheet update for the spares list, that took another 90 minutes. Customer paid INR 4,500 for the visit (call-out + diagnostic + onsite fix, no parts). The dealer credit for the cold spare I left as goodwill came back to me as INR 22,800 next month when the customer ordered a second CRS305 for their secondary site in Salem. That is how a Tier-2 ISP business actually works in India. relationships first, invoices after.

Repeat issues to watch for the same week: voltage swings during the BESCOM 6 PM - 9 PM peak; the cheap ferrule-crimped RJ45 connectors that the building electrician installed; and the air-conditioning compressor cycling that puts the rack through a 24-32 C daily swing. Each of those will re-trigger a CRS305 fault if you do not fix the underlying environment.

Extended FAQs from the field

The dealer says my CRS305 support contract is "mandatory", is it really?

MikroTik does not sell tiered support contracts the way Cisco SmartNet or Juniper J-Care does. There is no AMC SKU. What dealers in Nehru Place or SP Road bundle as "support AMC" for INR 4,500 - 12,000/year is their own desk-warranty service. The hardware itself ships with a 1-year MikroTik factory warranty handled via the importer (Hi-Tech or Almiria depending on city). For mission-critical ISP racks I always buy a cold spare instead of paying AMC. A spare CRS305 on the shelf costs the same as 3 years of dealer AMC and gives you a swap in 15 minutes.

How do I prove uptime for SLA reporting to my BFSI customer?

Pipe RouterOS health into Prometheus via the MikroTik exporter (nshttpd/mikrotik-exporter on GitHub), scrape every 30 seconds, render a Grafana dashboard. A typical RBI-aligned SLA needs 99.95% monthly uptime: that is 21 minutes 54 seconds of downtime per 30-day month. Budget your maintenance windows accordingly.

The CFO is asking if we can switch to a cheaper vendor. What is the real TCO over 5 years?

For the CRS305 at GeM INR 24,000 ex-GST + 1x cold spare INR 24,000 + power 18W average = INR 1,890 power/year at INR 12/unit commercial + Grafana monitoring INR 0 (open source) = roughly INR 57,450 over 5 years per active switch. A Cisco Catalyst 1300 series alternative lands closer to INR 1.4 lakh + SmartNet. A TP-Link Omada equivalent is cheaper at INR 14,000 but you lose RouterOS scripting that your NOC already knows. The switching tax is real.

Will RouterOS 7.x break my running config from RouterOS 6.x?

Yes for routing-filter syntax, /tool fetch behaviour, and bridge port settings. I keep a parallel lab with one CRS305 on the current RouterOS 7 stable and one on 6.49.x long-term. Test every customer-touching config in the lab before pushing to production. We had a 47-minute outage in Hubli the day we forgot.

How do I keep the box from being part of a botnet?

The CVE-2018-14847 chr.dll exploit and the more recent CVE-2023-30799 Winbox escalation taught the community a hard lesson. Bind Winbox to a management VRF or to a /32 from your bastion host. Disable www, api, ftp, telnet on WAN. Audit /user print for unexpected names. I run a quarterly script that emails me if any service besides ssh and winbox is listening publicly.