MikroTik RouterOS ARM Firmware 6.39.3 Download

Posted at November 21, 2024 by PCI-DB Team

MikroTik RouterOS ARM Firmware 6.39.3 Description

What's new in 6.39.3:

- arp - properly update dynamic ARP entries after interface related changes;
- bonding - fixed 802.3ad mode on RB1100AHx4;
- bonding - improved reliability on bonding interface removal;
- console - fixed different command auto complete;
- crs1xx/2xx - fixed 1 Gbps forced mode for several SFP modules;
- crs317 - added L2MTU support;
- crs3xx - improved packet processing in slowpath;
- dhcp - fixed downgrade from RouterOS v6.41 or higher;
- dhcpv4-server - fixed lease renew for DHCP clients that sends renewal with "ciaddr = 0.0.0.0";
- dhcpv6-client - do not run DHCPv6 client when IPv6 package is disabled;
- dhcpv6-client - fixed IA evaluation order;
- dhcpv6-client - require pool name to be unique;
- dhcpv6-server - do not release address of static binding from pool after server removal;
- discovery - fixed timeouts for LLDP neighbours;
- ethernet - fixed occasional broken interface order after reset/first boot;
- ethernet - fixed rare linking problem with forced 10Mbps full-duplex mode;
- export - fixed export for PoE-OUT related settings;
- export - fixed wireless "ssid" and "supplicant-identity" compact export;
- fasttrack - fixed fasttrack over interfaces with dynamic MAC address;
- firewall - fixed bridge "action=log" rules;
- firewall - fixed crash on fasttrack dummy rule manual change attempt;
- firewall - properly remove "address-list" entry after timeout ends;
- firewall - removed unique address list name limit;
- hAP ac lite - removed nonexistent "wlan-led";
- hotspot - improved user statistics collection process;
- hotspot - require "dns-name" to contain "." symbol under Hotspot Server Profile configuration;
- ike1 - fixed initiator ID comparison to NAT-OA;
- interface - improved interface state change handling when multiple interfaces are affected at the same time;
- ipsec - do not deduct "dst-address" from "sa-dst-address" for "/0" policies;
- ipv6 - fixed IPv6 address request from pool;
- metarouter - fixed display of bogus error message on startup;
- ntp-client - properly start NTP client after reboot if manual server IP is not configured;
- ovpn - added support for "push-continuation";
- ovpn - added support for topology subnet for IP mode;
- ovpn - fixed duplicate default gateway presence when receiving extra routes;
- ovpn - improved performance when receiving too many options;
- ping - fixed ping getting stuck (after several thousands of ping attempts);
- ppp - fixed non-standart PAP or CHAP packet handling;
- pppoe-client - fixed incorrectly formed PADT packet;
- pppoe-client - fixed wrong MRU detection over VLAN interfaces;
- proxy - fixed rare program crash after closing client connection;
- quickset - fixed incorrect VPN address value on arm and tilera;
- rb1100ahx4 - fixed HW acceleration fragmented packet decryption when fragment is smaller than 64 bytes;
- rb1100ahx4 - fixed startup problems (requires additional reboot after upgrade);
- rb2011 - fixed possible LCD blinking along with ethernet LED;
- rb3011 - fixed packet passthrough on switch2 while booting;
- rb922 - restored missing wireless interface on some boards;
- safe-mode - fixed session handling when Safe Mode is used on multiple sessions at the same time;
- sfp - fixed invalid temperature readings when ambient temperature is below 0C;
- sfp - fixed OPTON module DDM information readings;
- sfp - fixed temperature readings for various SFP modules;
- sniffer - do not skip L2 packets when "all" interface mode was used;
- snmp - fixed "/caps-man registration-table" uptime values;
- snmp - fixed "/system license" parameters for CHR;
- snmp - fixed "/system resource cpu print oid";
- snmp - fixed crash on interface table get;
- ssh - do not execute command if it starts with "-" symbol;
- supout - fixed IPv6 firewall section;
- switch - fixed multicast forwarding on CRS326;
- tile - fixed copying large amount of text over serial console;
- tile - improved reliability on MPLS package processing;
- traffic-flow - fixed reboots when IPv6 address has been set as target address without active IPv6 package;
- trafficgen - fixed "lost-ratio" showing incorrect statistics after multiple sequences;
- userman - do not send disconnect request for user when "simultaneous session limit reached";
- userman - fixed "limitation" and "profile-limitation" update;
- userman - fixed CoA packet processing after changes in "/tool user-manager router" configuration;
- userman - lookup language files also in "/flash" directory;
- vlan - do not allow VLAN MTU to be higher than L2MTU;
- vlan - do not delete existing VLAN interface on "failure: already have such vlan";
- webfig - allow to unset "rate-limit" for DHCP leases;
- webfig - fixed wireless "scan-list" parameter not being saved after applying changes;
- webfig - improved reliability of login process;
- winbox - added possibility to define "comment" for "/routing bgp network" entries;
- winbox - added support for certificate CRL list;
- winbox - do not show LCD menu for devices which does not have it;
- winbox - fixed ARP table update after entry changes state to incomplete;
- winbox - hide "level" and "tunnel" parameters for IPSec policy templates;
- winbox - hide FAN speed if it is 0RPM;
- winbox - make IPSec policies table an ordered list;
- winbox - properly show "dhcp-server" warnings;
- winbox - show "/interface wireless cap print" warnings;
- winbox - show "/system health" only on boards that have health monitoring;
- winbox - show "D" flag under "/interface mesh port" menu;
- wireless - added "etsi1" and "russia3" regulatory domain information;
- wireless - fixed compatibility with "AR5212" wireless chips;
- wireless - improved WPA2 key exchange reliability;
- wireless - updated "china", "norway" and "new-zealand" regulatory domain information;

About Router Firmware:

Before you consider downloading this firmware, go to the system information page of the router and make sure that the currently installed version isn't either newer or matching this release.

Due to the large variety of router models and different methods for upgrading the device, it is highly recommended that you read and, above all, understand the installation steps before you apply the new firmware, even if you are a power user.

In theory, these steps shouldn't be much of a hassle for anyone, because manufacturers try to make them as easy as possible, even if they don't always succeed. Basically, you must upload the new firmware to the router through its administration page and allow it to upgrade.

If you install a new version, you can expect increased security levels, different vulnerability issues to be resolved, improved overall performance and transfer speeds, enhanced compatibility with other devices, added support for newly developed technologies, as well as several other changes.

If you're looking for certain safety measures, remember that it would be best if you perform the upload using an Ethernet cable rather than a wireless connection, which can be interrupted easily. Also, make sure you don't power off the router or use its buttons during the installation, if you wish avoid any malfunctions.

If this firmware meets your current needs, get the desired version and apply it to your router unit; if not, check with our website as often as possible so that you don't miss the update that will improve your device.

  It is highly recommended to always use the most recent driver version available.

Try to set a system restore point before installing a device driver. This will help if you installed an incorrect or mismatched driver. Problems can arise when your hardware device is too old or not supported any longer.

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