MikroTik Troubleshooting for Small Business

@farooqtahir2013

As an experienced Network and Security Engineer, I am well-versed in troubleshooting and resolving issues similar to what you are currently facing with your MikroTik-based network. Over the course of my decade-long career, I have worked extensively on a variety of network infrastructures, including MikroTik, ensuring I'm familiar with both the common and rare pitfalls that can disrupt network performance. This depth of knowledge allows me to get to the root cause promptly and apply the fix efficiently. One aspect that distinguishes me from other professionals is my ability to proactively identify related configuration weaknesses beyond the main issue at hand. With your permission, not only will I address the immediate problem you mentioned, but I will also clean up any mis-configurations in firewall rules or routing loops, assuring you of a smoother-running connection moving forward. Moreover, my availability within 24 hours combined with quick response time will ensure your network issue is resolved in the shortest time possible. Throughout the process, I welcome open communication and encourage a voice call—allowing you to test endpoints in real-time as I make adjustments to restore stability. My ultimate commitment is delivering your project 100% on time ensuring your users enjoy stable connectivity after the fix. I look forward to working with you on this project and resolving all your network challenges together.

@AZTURK1

Random drops and sudden performance degradation on RouterOS typically stem from connection tracking table exhaustion, fasttrack bypassing issues, bridge loop flaps, or runaway CPU usage caused by unoptimized firewall filter rules. ✅ Isolate root cause via RouterOS logs, interface error counters, CPU profiling, bridge STP states, and connection tracking limits. ✅ Correct misconfigured firewall/NAT rules, routing conflicts, or MTU/MSS clamping, ensuring all configurations persist cleanly across reboots. ✅ Full binary backup and plain-text configuration export (.rsc) saved before touching any settings, with Safe Mode engaged during all live changes. ✅ Detailed diagnostic summary provided alongside the exact export script of applied fixes. ✅ 10+ years production experience | 400+ completed projects | 320+ five-star reviews ✅ Microsoft® Certified: MCSA | MCSE | MCT & cPanel Certified (CWSA-2) Are the drops affecting local LAN communication between endpoints as well, or strictly outbound traffic passing through the NAT gateway? I can deliver this in 1 day for 30 USD and can jump on it right now.

@ExpertNetworkEng

Hello, I’m a Senior Network & Security Engineer with 10+ years of hands-on experience designing, implementing, and migrating enterprise and service-provider networks. I specialize in Network Security, SD-WAN, routing & switching, enterprise wireless, and secure network architecture, helping companies modernize legacy networks, improve reliability, and reduce WAN costs. Core expertise: - Firewalls & Security: FortiGate, Palo Alto, Cisco ASA / Firepower IPsec & SSL VPN, site-to-site, remote access, policy design - Routing & Switching: Cisco ASR/ISR, Catalyst, Nexus, Juniper Routers (M10, MX 960) and SRX 500 (BGP, OSPF, EIGRP, IS-IS, MPLS, VLANs, STP, HSRP/VRRP) Enterprise LAN & campus design - LAN Switching (Multi-Vendor): Cisco, Juniper, Meraki, HP, Aruba, FortiSwitch Access/core design, redundancy, QoS, segmentation - Enterprise Wireless: Cisco WLC & APs, Cisco Meraki Wi-Fi, Ubiquiti, Aruba Wi-Fi, FortiAP Coverage design, roaming, security, troubleshooting - SD-WAN: Fortinet SD-WAN, Cisco SD-WAN (Viptela), Cisco Meraki (hub-and-spoke, MPLS + Internet, segmentation, HA, traffic steering) - Cloud & Hybrid Networking: AWS / Azure / GCP Site-to-site VPN, routing integration - Network Automation: Python Certifications: CCIE Enterprise Cisco Certified Specialist – Enterprise SD-WAN Implementation CCNP Data Center CCNP Security Juniper JNCIA-Junos, JNCIA-Cloud If you share your current setup and goal, I can propose a clear and practical solution. Best regards,

@sohelranaict07

Hello there, I am a CCNA/CCNP trainer and professional network & security expert having more than 12 years’ experience of working with multiple organizations like Bank, NGO, ISP and vendors. Following are the benchmarks I have which might be helpful for employer to get an overview and choose me to serve their requirement. ✅ I have certification of CCNP (R&S), RHCSA, RHCSE and training on CCNP Sec, MTCNA, F5 ASM & LB, Linux System Security, Information Security and Cyber Forensic. ✅ I am a professional CCNA & CCNP (R&S) trainer and have simulated lot of projects in packet tracer and GNS3. ✅ During my job period I mostly worked to design and deploy network & security infrastructure of several companies. ✅ I have good knowledge and experience of working on devices of multiple OEM like Cisco, Juniper, Mikrotik, F5, Sophos, Fortinet, PfSense, SonicWall etc. ✅ I have expertise in Cisco ACI (Data Center Solution), Routing & switching, Firewall (FTD & ASA), wireless, collaboration, WSA, ESA, ISE, F5 Application Security Manager & Load Balancer, Mikrotik BW Manager etc. I will be glad if the above-mentioned criteria make you realize that I am able to meet your requirement then would like to request to have a brief discussion on your project and requirements first after that award me with the work order. I always try to keep my words given to employer and I believe it helps me a lot to deliver my work on time. Thanks with best regards, Rana

@psamkam

Hi I am a network architect with extensive experience working with Mikrotik in ISP, DC and enterprise networks. Please do not hesitate to contact me for assistance. Which RB routers or switches are in your ecosystem and which ROS version 6/7 is running on your equipment? What is the exact behaviour you are experiencing right now, sis it start due to a change, upgrade or randomly? Regards Samson

@naminghn

Hi there, I understand your MikroTik network is experiencing random disconnections and performance issues, and you've ruled out the ISP as the cause. Given the remote access you will provide, I can meticulously diagnose the router and switch configurations to identify the root cause of these problems. Once the issue has been pinpointed, I will document all necessary changes with an export script and ensure the network is stable for all users post-fix. I will stay available for real-time feedback during the troubleshooting session, aiming for a swift resolution today. Regards, Ali

@SuspiciusRacoon

A MikroTik that degrades suddenly after working fine usually has one of four causes, all checkable in the first hour: 1. Router abused from outside. If /ip dns has allow-remote-requests=yes and the input chain does not drop port 53 from the WAN, it becomes an open resolver for DDoS amplification: CPU at 100% and random drops. Same symptom if it was compromised by the Meris botnet: /ip socks enabled and unknown scripts in /system scheduler. 2. Connection tracking table full, usually from one infected host. /ip firewall connection print count-only against the maximum shows it in seconds, and Torch finds the host. 3. Layer 2 loop. A bridge with STP disabled plus a new cable or unmanaged switch creates a broadcast storm that looks exactly like random disconnections. 4. Failing port. Rising fcs-error or rx-align-error in /interface ethernet print stats, and link flaps in the log, point to a cable or duplex mismatch. 25 years running infrastructure: Teraserver, 68 VPS and 20,000+ hosted domains, plus 100+ projects in banking, healthcare and government. Certified Ethical Hacker, which matters if the cause is a compromise. You get a written root cause, a full /export before and after with every command applied, a reboot test, and the config saved. To start: Winbox or SSH access, RouterOS version, and roughly when the problems began. Available the same day, 9 to 21 (UTC-3), with you testing on a call.

@humaira924

I can fix your MikroTik issue today. I have experience with RouterOS, Winbox, firewall rules & routing loops. Plan: 1) Check logs / CPU / interfaces for drops, 2) Pin-point root cause, 3) Fix config and test reboot survival, 4) Clean firewall/routing if needed, 5) Share diagnosis + export script. I can do remote session via Winbox/TeamViewer today same day. Let's get your network stable online again. Thanks, Humaira

@Haryonno

I am Haryono from Indonesia. I have experience with network-related work, and I am confident I can resolve your issue. Thank you.

@markh697

Hi, I can help find what's causing the random drops on your MikroTik network. I'm happy to work over RouterOS terminal/Winbox with you on a voice call so you can test endpoints as I make changes. My plan for the session: 1. Take a full '/export' backup and a binary backup before I change anything. 2. Check the logs, interface error counters, CPU/memory use, and the uptime and reboot history (to spot crashes or watchdog reboots). I'll also look at /tool torch and the connection table for traffic floods or a runaway host. 3. Look for the usual causes: bridge/STP loops or duplex mismatches on the switch side, DHCP/ARP conflicts, a FastTrack or firewall rule that drops established traffic, and MTU/PPPoE problems. 4. Check the RouterOS version and the users/services exposed to the WAN. Older versions have known vulnerabilities, and an unexpected script, scheduler or user account can cause exactly this kind of instability. 5. Fix the root cause, confirm the change survives a reboot, and send you a short diagnosis summary plus the exact commands/exports I applied. To be upfront: I'm new on Freelancer and have no reviews here yet. My background is network configuration and automation (Python/Ansible). Which MikroTik models are you running (router and switches), and which RouterOS version? Thanks, Mark

@nintysix96

Rough numbers above are just placeholders , we'll pin down the actual price once we've had a quick look at the setup. Random drops and degraded performance on a MikroTik network, ISP already ruled out , that points squarely at something in the router or switch config: a routing loop, a bad firewall rule, a bridge misconfiguration, or maybe a spanning-tree issue on the switch side. Our goal is to get every user back on stable, consistent connectivity and leave the config clean enough that the fix holds through reboots and power cycles. Here's how we'd approach this: - Diagnosis: Connect via Winbox and pull a full config export first, then check interface stats, logs, and queues for anything obviously wrong. Traffic graphs and torch will help isolate where packets are going sideways. - Firewall and routing review: Walk through the filter and mangle chains for duplicate or conflicting rules, check the routing table for loops or stale static routes, and confirm NAT masquerade is scoped correctly. - Bridge and switch config: Verify STP/RSTP settings across ports, look for mismatched VLANs or trunk misconfigs that could cause intermittent flooding or drops. - Fix and reboot test: Apply the corrections, export a clean backup, reboot the router, and confirm all users are stable before we sign off. - Deliverables: Hand over a written diagnosis summary plus the full list of commands and scripts applied, so you have a record of exactly what changed. We're comfortable staying on a voice call with you throughout so you can test endpoints in real time as we work , that's actually the fastest way to confirm things are fixed before we wrap up. After a short scope chat we'll put together a written proposal covering the session structure and a firm price. Want to set up a quick call to schedule the session and get remote access sorted beforehand? Best, 96 Studio

@RevS412

The first thing to establish is whether the drops originate at an interface, a Layer-2 loop, DHCP/ARP churn, or the routing/firewall path before changing RouterOS rules. I’d start with a read-only configuration export, interface counters, logs, routes, firewall/NAT state, and affected-client tests. Once the failing path is isolated, I’d apply only the agreed change, test connectivity through a reboot with you, and hand over the root-cause summary plus exact commands. Work starts with the funded diagnostic milestone and a maintenance window so the live network remains controlled.

@mrxlazuardin

I'm using Mikrotik on some projects and at my home and office. I believe I can help you to find the root cause and fix it. Let's have a call dor detailing.

@Sughino86

Hi, I can troubleshoot your MikroTik network remotely and complete the diagnosis and corrective changes in the same scheduled session. I manage RouterOS environments with VLANs, bridges, DHCP, firewall and NAT rules, routing, VPNs, and mixed wired/Wi-Fi networks. I’ll begin with a safe export and backup, then review RouterOS resources and logs, interface error/drop counters, DHCP and ARP tables, routes, bridge/VLAN consistency, loop indicators, firewall behavior, and traffic using Torch or packet capture. I’ll isolate whether the drops come from an L2 loop, address conflict, interface negotiation, overloaded connection tracking, DNS/DHCP, queues, routing, or firewall rules. After identifying the root cause, I’ll apply the minimum necessary change, test stability with you, reboot the router, and verify that the fix survives. You’ll receive a concise diagnosis summary and a step-by-step record of commands or configuration changes. To prepare, please share the MikroTik model, RouterOS version, switch models, a simple topology, and any changes made shortly before the issue began.

@klicak

Hi, I can help troubleshoot the MikroTik network and identify the actual cause of the intermittent connectivity and performance problems. I have hands-on experience administering MikroTik RouterOS networks, including routing, firewall/NAT, VLANs, DHCP/DNS, VPNs, switching, and network troubleshooting. My approach would be: - Review the current RouterOS version, uptime, CPU/memory and interface status - Check logs and interface errors/drops - Review firewall, NAT, connection tracking and routing - Check bridge/VLAN configuration and possible routing loops - Verify DHCP/DNS and gateway behavior - Compare the configuration against the observed connectivity symptoms - Take an export/backup before making changes - Apply only the necessary configuration changes - Reboot/test where appropriate to ensure the fix persists - Document the root cause and all changes/commands performed Because this involves remote administrative access to the router, I would also perform a basic security review, including checking RouterOS version, exposed management services, unexpected users/scripts, and suspicious configuration changes. I can work with you on a voice call while troubleshooting so you can test affected endpoints in real time. I am available to complete the troubleshooting session the same day, depending on the network complexity. Regards, Andri

@luizfernandog3

Olá, posso ajudar a diagnosticar e resolver remotamente o problema da sua rede MikroTik. Tenho experiência prática com MikroTik RouterOS, roteamento, firewall, NAT, DHCP, bridges, VPNs e diagnóstico de redes. Primeiro, vou analisar a configuração atual, os logs e o comportamento da rede para identificar a causa raiz das quedas de conexão ou do problema de desempenho. Somente após o diagnóstico aplicarei as alterações mínimas necessárias. Também posso criar um backup/exportação antes das alterações, validar a rede com você em tempo real e fornecer um breve resumo do problema encontrado e das alterações realizadas. Estou disponível para realizar o diagnóstico remotamente e posso começar assim que o acesso for fornecido.

@matheushprates

Hi! I run Linux servers and support small business networks (routing, firewall, DNS, DHCP and VPN), so random drops with the ISP already ruled out is the kind of problem I like to chase step by step. How I would work, remotely through Winbox or the terminal: 1. Export the current configuration first, as a backup, before touching anything. 2. Check the usual causes of random drops: interface errors and flapping links, duplicate IPs or a second DHCP server, bridge loops and ARP issues, firewall and connection tracking rules dropping valid traffic, CPU and memory under load, and DNS. 3. Fix the root cause, tidy any broken firewall rules or routes, and reboot to confirm the fix survives. 4. Deliver a short diagnosis, the exact commands and the exported changes, and confirm stable connections with your users. Price: USD 30, within 2 days. Question: do the drops hit every device at once, wired and Wi-Fi, or only some of them?

@rahbarworld

I can start immediately and troubleshoot the MikroTik network remotely. I have 6+ years of IT/networking experience and will first review the current configuration, interfaces, firewall/routing and performance symptoms to identify the root cause. I’ll take a backup before making changes, apply the minimum required fix, test connectivity and performance, and verify that the solution survives a reboot. I can work with you remotely today and provide a clear diagnosis summary after the fix.

@aldia301

Halo,Saya siap membantu memecahkan masalah (troubleshooting) dan menstabilkan kembali jaringan MikroTik di bisnis Anda hari ini. Pengalaman saya dalam mengelola jaringan berbasis MikroTik (seperti RT/RW Net) membuat saya terbiasa menghadapi kendala koneksi terputus acak, CPU load tinggi, looping, maupun kesalahan konfigurasi firewall/routing. Rencana langkah kerja saya via Winbox/Terminal remote: Diagnosis & Analisis Akar Masalah: Memeriksa log system, penggunaan resource CPU/RAM, konfigurasi interface, bridge loop/STP, firewall rules, serta tabel routing. Perbaikan & Optimalisasi: Memperbaiki konfigurasi yang salah, menghilangkan loop, serta memastikan semua aturan perbaikan tersimpan dan bertahan setelah perangkat di-reboot. Pengujian & Laporan: Menguji stabilitas koneksi bersama Anda via panggilan suara secara real-time, memberikan ekspor skrip/perintah perubahan, serta merangkum diagnosis akar masalahnya. Saya bersedia langsung memulai sesi dan berkoordinasi via panggilan suara agar perbaikan bisa selesai di hari yang sama. Terima kasih,