Windows Errors? Fix Them Before They Spread
Repair common Windows errors and clear accumulated junk for a smoother, more stable PC - no reinstall needed.Free scan · no reinstallCrashes, No Sound, or Screen Glitches?
Random freezes, missing sound and display glitches usually trace back to one bad driver. Find and replace yours safely.Free scan · under a minuteKeep Comodo Firewall enabled and use Safe Mode, Comodo’s recommended setting for most users. When a connection alert appears, verify the requesting program and choose Treat this application as a Trusted Application only if you trust that specific program. If it is still blocked, check its application rule and the firewall’s global rules; the exact menu path depends on your Comodo product and version.
Use Safe Mode as the everyday setting
In Comodo’s current Internet Security help, the path is Settings > Firewall > Firewall Settings. Leave Enable Firewall on and select Safe Mode. Comodo describes Safe Mode as its default and recommends it for most users because it combines security with a manageable number of alerts. With the relevant safe-application option enabled, Comodo can automatically create allow rules for applications it considers safe; it prompts when a new or unknown program tries to connect. Comodo’s General Firewall Settings help
As an Amazon Associate I earn from qualifying purchases.
Menu labels and locations vary across Comodo product generations. Treat that path as specific to the current Internet Security help, not a guaranteed match for every Comodo Firewall installation.
What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
Approve only the program you have verified
When an alert appears, check the application requesting network access and whether the request fits what you are doing—for example, a browser connecting while you load a page. Do not approve a program just because its filename looks familiar. If you have verified the program and want to allow it, choose Treat this application as a Trusted Application. Comodo says this applies its predefined Trusted Application ruleset, so it is more than simply dismissing or hiding the alert. Comodo’s General Firewall Settings help
#1 Best Overall
- 【Five Gigabit Ports】1 Gigabit WAN Port plus 2 Gigabit WAN/LAN Ports plus 2 Gigabit LAN Port. Up to 3 WAN ports optimize bandwidth usage through one device.
- 【One USB WAN Port】Mobile broadband via 4G/3G modem is supported for WAN backup by connecting to the USB port. For complete list of compatible 4G/3G modems, please visit TP-Link website.
- 【Abundant Security Features】Advanced firewall policies, DoS defense, IP/MAC/URL filtering, speed test and more security functions protect your network and data.
- 【Highly Secure VPN】Supports up to 20× LAN-to-LAN IPsec, 16× OpenVPN, 16× L2TP, and 16× PPTP VPN connections.
- Security - SPI Firewall, VPN Pass through, FTP/H.323/PPTP/SIP/IPsec ALG, DoS Defence, Ping of Death and Local Management. Standards and Protocols IEEE 802.3, 802.3u, 802.3ab, IEEE 802.3x, IEEE 802.1q
Choose a mode that matches how much rule management you want
| Mode | What to expect | Best suited to |
|---|---|---|
| Safe Mode | Can automatically allow applications Comodo considers safe when the relevant option is enabled; prompts about new or unknown applications. | Most users who want protection without managing every connection rule. |
| Custom Ruleset | Uses user-created network rules. Even safe-listed applications can prompt unless specific rules trust them. | Users who want more visibility and are willing to create and maintain rules. |
| Training Mode | Creates allow rules for new applications without alerts. | Advanced users or administrators establishing a trusted baseline—not a quick way to stop alerts. |
These mode descriptions and recommendations come from Comodo’s firewall settings documentation.
If a trusted program is still blocked, inspect its rules
Allowing the application in an alert may not resolve an existing block. A blocked loaded component can also cause the entire application to lose internet access, according to Comodo. Check for a component-related block as well as the program’s own entry.
Rank #2
- Easier-Than-Ever Setup — Convenient and easy router management via web browser or the ASUS ExpertWiFi mobile app through Bluetooth setup.
- VLAN for Added Security —Each of the Ethernet ports can be assigned to one or more VLAN IDs that provides additional security for your business.
- Up to 3 WAN Ethernet Ports – 1 gigabit WAN port and 2 gigabit WAN/LAN ports with load balancing optimize multi-line broadband usage.
- Backup WAN for Stable Connectivity –The USB port can be used as a backup WAN by connecting it to a mobile phone with hotspot to maintain a reliable internet connection.
- Commercial-Grade Network Security and VPN — Secure public WiFi connections with Safe Browsing and VPN features. Enjoy a free-subscription ASUS AiProtection Pro, including robust intrusion prevention system (IPS) features like deep packet inspection (DPI) and virtual patching to block malicious traffic.
Check the application-specific rule
Comodo’s walkthrough for Internet Security v5.9/5.10 documents this path: Firewall > Network Security Policy > Application Rules. Select the program, then edit or remove its rule and confirm the change. This is a version-specific example; newer interfaces may use different labels or locations. Comodo’s v5.9/5.10 firewall setup walkthrough
Check Global Rules too
Comodo consults both application-specific and global rules when deciding whether to allow traffic. The order differs by direction: outbound connections check application rules first, then global rules; inbound connections check global rules first, then application rules. So if the app rule appears to allow the connection, inspect the relevant global rule before changing settings more broadly. Comodo’s Firewall Configuration help
Rank #3
- 【Flexible Port Configuration】1 2.5Gigabit WAN Port + 1 2.5Gigabit WAN/LAN Ports + 4 Gigabit WAN/LAN Port + 1 Gigabit SFP WAN/LAN Port + 1 USB 2.0 Port (Supports USB storage and LTE backup with LTE dongle) provide high-bandwidth aggregation connectivity.
- 【High-Performace Network Capacity】Maximum number of concurrent sessions – 500,000. Maximum number of clients – 1000+.
- 【Cloud Access】Remote Cloud access and Omada app brings centralized cloud management of the whole network from different sites—all controlled from a single interface anywhere, anytime.
- 【Highly Secure VPN】Supports up to 100× LAN-to-LAN IPsec, 66× OpenVPN, 60× L2TP, and 60× PPTP VPN connections.
- 【5 Years Warranty】Backed by our 5-years warranty and free technical support from 6am to 6pm PST Monday to Fridays
Keep useful alerts visible while troubleshooting
Comodo recommends Low alert frequency for most users. Its documentation says alert frequency changes the volume and detail of alerts, not the protection level established by the firewall rules. Hiding pop-ups can make it harder to identify and decide on a connection request, so leave them visible while diagnosing a block. Comodo’s General Firewall Settings help
Quick Recap
Best Value
- 【Flexible Port Configuration】1 Gigabit SFP WAN Port + 1 Gigabit WAN Port + 2 Gigabit WAN/LAN Ports plus1 Gigabit LAN Port. Up to four WAN ports optimize bandwidth usage through one device.
- 【Increased Network Capacity】Maximum number of associated client devices – 150,000. Maximum number of clients – Up to 700.
- 【Integrated into Omada SDN】Omada’s Software Defined Networking (SDN) platform integrates network devices including gateways, access points & switches with multiple control options offered – Omada Hardware controller, Omada Software Controller or Omada cloud-based controller(Contact TP-Link for Cloud-Based Controller Plan Details). Standalone mode also applies.
- 【Cloud Access】Remote Cloud access and Omada app brings centralized cloud management of the whole network from different sites—all controlled from a single interface anywhere, anytime.
- 【SDN Compatibility】For SDN usage, make sure your devices/controllers are either equipped with or can be upgraded to SDN version. SDN controllers work only with SDN Gateways, Access Points & Switches. Non-SDN controllers work only with non-SDN APs. For devices that are compatible with SDN firmware, please visit TP-Link website.
Rank #4
- Compact and Efficient Design: The FortiGate 40F is designed for small to mid-sized businesses and enterprise branch offices, featuring a compact, fanless desktop form factor that ensures quiet operation and minimizes space usage.
- Robust Connectivity Options: Equipped with 5 GE RJ45 ports, including 1 WAN port and 4 internal ports, this model provides essential connectivity and flexibility for various network configurations in a small-scale environment.
- High-Performance Security: Offers up to 1 Gbps IPS throughput and 600 Mbps threat protection throughput, using Fortinet’s purpose-built security processor technology to deliver industry-leading performance and protection for SSL encrypted traffic.
- Advanced Threat Protection: Integrated with Fortinet’s AI-powered FortiGuard Labs, the FortiGate 40F offers comprehensive cybersecurity, identifying and mitigating both known and unknown threats to maintain robust security across your network.
- Simplified Management and Deployment: Features a user-friendly management console that provides comprehensive network automation and visibility, coupled with Zero Touch Integration with Fortinet’s Security Fabric for easy deployment.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
