Hello,
I just got a 951G router and I configured it for simple routing and browsing. Unfortunately, the users behind the router cant seem to browse and connect that email clients successfully.
I however enabled web proxy and users are now able to browse the internet. However, they are unable to browse https websites and still unable to connect their email clients.
I have reset the router several times and gone with a base config (no config), starting config from scratch but still no luck.
Any ideas or has anyone had such a problem before as i am running out of my mind here? This isnt the first router I would configure and I have loads in different client locations with pretty much the same config. The only difference is that this is the first time I will be configuring a wireless Mikrotik router.
Any help at this stage will be very much appreciated please.
Regards,
Femi
It sounds like you either dont have a route or nat rule setup. Web proxy doesn’t proxy HTTPS , so its falling back to the default route / nat which doesn’t work (hence why you enabled web proxy)
Can you post your config?
Hello,
I figured out the problem, it had something to do with the MTU settings attached to the WAN interface. The ISP advised us to use 1400 which I already did, but needed to make slight changes with the tcp-adjust settings. Below is what I had on a previously used Cisco router:
interface FastEthernet4
description WAN_FW_OUTSIDE$ETH-WAN$$FW_OUTSIDE$
ip address x.x.x.x. y.y.y.y.
ip verify unicast reverse-path
no ip redirects
no ip unreachables
no ip proxy-arp
ip mtu 1400
ip nat outside
ip virtual-reassembly
ip tcp adjust-mss 1380
duplex auto
speed auto
!
Here’s the line item I had to key in to the 951G:
/ ip firewall mangle add chain=forward protocol=tcp tcp-flags=syn tcp-mss=!0-1380 action=change-mss new-mss=1380
Regards,
Femi