Slow channel switching Magenta TV on E60iUGS

RouterOS
1

Hello,

I have a Samsung Smart TV with the Magenta TV application. I have two MikroTiks – an old RouterBOARD 750G r3 with RouterOS 6.49.8 on which everything works fine, and a new E60iUGS with RouterOS 7.22.1 on which channel switching takes approximately 6 seconds.

The TV is connected via LAN cable. Magenta TV uses unicast HTTPS streaming, not multicast.

From firewall logs I found that TCP handshake to Magenta TV streaming servers (213.81.153.x port 444) takes up to 2 minutes – TV sends SYN but ACK arrives after a very long time.

What I have tried:

  • FastTrack

  • MSS clamping

  • proxy-arp on bridge1

  • protocol-mode=none on bridge1

  • hw offload disabled on bridge ports

  • add-arp=no on DHCP server

  • DNS 1.1.1.1 and 8.8.8.8

Nothing helped. Does anyone have experience with a similar problem?

Thank you

2

Any DNS issues maybe?

3

Yes.

https://jdebp.uk/FGA/questions-with-yes-or-no-answers.html

Now, maybe you should ask the real question AND provide your current configuration, instructions here:
Forum rules - #5 by gigabyte091

4 
# 2026-04-12 20:12:18 by RouterOS 7.22
# software id = **ELIDED**
# 
# model = E60iUGS
# serial number = xxxxxxxxx

/interface bridge
add ageing-time=10m arp=proxy-arp name=bridge1 protocol-mode=none
/interface ethernet
set \[ find default-name=ether1 \] comment="P\\F8ipojen\\ED k internetu" name=
1_Wan_Internet
set \[ find default-name=ether2 \] name=2_Lan
set \[ find default-name=ether3 \] name=3_Lan
set \[ find default-name=ether4 \] name=4_Lan
set \[ find default-name=ether5 \] name=5_Lan
set \[ find default-name=sfp1 \] disabled=yes
/interface wireguard
add comment="VPN_WireGuard_Mart\\EDnek" listen-port=13238 mtu=1420 name=
WireGuard_Pekarna
/ip pool
add name=DHCP ranges=192.168.88.10-192.168.88.99
/ip dhcp-server
add address-pool=DHCP interface=bridge1 lease-time=3d name=server-DHCP
/system logging action
set 0 memory-lines=20000
/interface bridge port
add bridge=bridge1 hw=no interface=2_Lan
add bridge=bridge1 interface=3_Lan
add bridge=bridge1 interface=4_Lan
add bridge=bridge1 interface=5_Lan
/ip address
add address=192.168.88.1/24 interface=bridge1 network=192.168.88.0
add address=xxxxxxxxxxx/30 interface=1_Wan_Internet network=xxxxxxxxxxxxxx
/ip dhcp-server lease
add address=192.168.88.23 client-id=1:0:17:c8:95:51:5d comment=
"Tisk\\E1rna Kyocera pod TV" mac-address=00:17:C8:95:51:5D server=
server-DHCP
add address=192.168.88.89 client-id=1:8:bf:b8:71:5e:89 comment=PC1
mac-address=08:BF:B8:71:5E:89 server=server-DHCP
add address=192.168.88.14 client-id=1:0:1:a8:8:3e:78 comment="Voip Telefon"
mac-address=00:01:A8:08:3E:78 server=server-DHCP
add address=192.168.88.21 client-id=1:8:bf:b8:71:60:7 comment=PC2
mac-address=08:BF:B8:71:60:07 server=server-DHCP
add address=192.168.88.29 client-id=1:d4:f0:c9:e:8e:3 comment=
"Tisk\\E1rna Kyocera u okna" mac-address=D4:F0:C9:0E:8E:03 server=
server-DHCP
add address=192.168.88.11 mac-address=78:20:51:23:5C:B3 server=server-DHCP
add address=192.168.88.12 mac-address=78:20:51:23:4A:AB server=server-DHCP
add address=192.168.88.10 mac-address=78:20:51:39:E3:FD server=server-DHCP
add address=192.168.88.26 mac-address=78:20:51:23:5A:05 server=server-DHCP
add address=192.168.88.15 client-id=1:7c:77:16:95:e9:82 comment=
"NAS 326 Ulo\\9Ei\\9At\\EC" mac-address=7C:77:16:95:E9:82 server=server-DHCP
add address=192.168.88.88 client-id=1:d0:50:99:2e:8e:df comment=
"PC4\_\\DA\\E8etn\\ED" mac-address=D0:50:99:2E:8E:DF server=server-DHCP
add address=192.168.88.17 client-id=1:fc:3:9f:aa:fa:cf comment=
"TV Samsung Byt" mac-address=FC:03:9F:AA:FA:CF server=server-DHCP
add address=192.168.88.16 comment=Kamera mac-address=70:3A:2D:1E:B3:8E
server=server-DHCP
/ip dhcp-server network
add address=192.168.88.0/24 gateway=192.168.88.1
/ip dns
set allow-remote-requests=yes servers=1.1.1.1,8.8.8.8
/ip firewall filter
add action=log chain=forward connection-state=new disabled=yes log-prefix=
SAMSUNG-TV src-address=192.168.88.17
add action=accept chain=input comment="accept established,related"
connection-state=established,related
add action=accept chain=forward comment="accept established,related"
connection-state=established,related
add action=accept chain=input dst-port=8291 in-interface=bridge1 protocol=tcp
add action=accept chain=input comment="Povolen\\ED Firemn\\ED WireGuard VPN"
dst-port=13238 protocol=udp
add action=accept chain=input comment=
"Povolen\\ED ping z vnit\\F8n\\ED s\\EDt\\EC" in-interface=bridge1 protocol=
icmp
add action=accept chain=input dst-address=10.210.0.1 src-address=
192.168.88.0/24
add action=accept chain=input in-interface=WireGuard_Pekarna
add action=accept chain=input comment="NTP Server - \\C8AS na Mikrotiku"
protocol=udp src-address=217.31.202.100
add action=accept chain=forward dst-port=5002 protocol=tcp
add action=drop chain=input comment="Zahodit v\\9Ae ostatn\\ED"
/ip firewall mangle
add action=change-mss chain=forward new-mss=clamp-to-pmtu protocol=tcp
tcp-flags=syn
add action=change-mss chain=postrouting new-mss=clamp-to-pmtu out-interface=
1_Wan_Internet protocol=tcp tcp-flags=syn
/ip firewall nat
add action=masquerade chain=srcnat out-interface=1_Wan_Internet
add action=dst-nat chain=dstnat comment="Opis z p\\F9vodn\\EDho Mikrotiku"
dst-address=xxxxxxxxxx dst-port=5002 protocol=tcp to-addresses=
192.168.88.89 to-ports=5002
add action=dst-nat chain=dstnat comment="Opis z p\\F9vodn\\EDho Miktoriku"
dst-address=xxxxxxxxxx dst-port=8292 in-interface=1_Wan_Internet
protocol=tcp to-ports=8291
/ip route
add disabled=no distance=1 dst-address=0.0.0.0/0 gateway=xxxxxxxxxxx
routing-table=main scope=30 target-scope=10
add disabled=no distance=1 dst-address=192.168.100.0/24 gateway=
WireGuard_Pekarna routing-table=main scope=30 target-scope=10
/ip service
set ftp disabled=yes
set ssh disabled=yes
set telnet disabled=yes
set www disabled=yes
set reverse-proxy disabled=yes
set api disabled=yes
set api-ssl disabled=yes
/system clock
set time-zone-name=Europe/Prague
/system identity
set name=MikroTik_Pekarna
/system ntp client
set enabled=yes
/system ntp client servers
add address=217.31.202.100
/tool sniffer
set file-limit=20480KiB
5

What is the 6.x configuration? What are the differences?

6

The E60iugs (new hex S) has been reported as having some issues when using ether1 as WAN.
Some of these have been resolved or mitigated in newish (post 7.20 or so) Ros, but I wouldn't be too surprised if some other still need to be fixed.
An experiment to do Is to take another port out of the bridge and configure It as WAN (disabling ether1), if you don't have an unused port, exchange the settings of the
port connected to the slowest device with those of ether1.

7

Thanks everyone for your help — I'm now testing a different MikroTik, the RB760iGS. I'll let you know whether it works correctly with Magenta TV.

8

Edit... I assumed that the RB760iGS was the original (both RB750Gr3 and RB760iGS are based on the same SoC, the MT7621).

I thought your original topic post said the RB760iGS (edit it was RB750Gr3) worked (although with 6.49.8)

I assume your test will be to see if the RB760iGS works with Magenta TV with 7.22.1

On thing you may want to try, is to force the E60iUGS to use the mac address that the RB760iGS was using, as that can affect the dynamic ip you receive from your ISP.

I know nothing about Magenta TV, but if if is subscription based, they may do something to prevent multiple "instances" running concurrently, and it may be tied to the ip global ip address and lease the TV gets. But this is pure conjecture. Just something that may be "different" between the RB760iGS and any other router (as each will have their own unique default mac address).

It would be easy to test the hypothesis. Reconnect the working RB750Gr3, and verify that Magenta TV still works. Then change the mac address (for example the default one from the E60iUGS), reobtain a dhcp lease (which will probably now be a different global ip address), and then see if Magenta TV works (with the original RB750Gr3) the only difference being the mac address, and therefor the global ip address obtained with dhcp).

See this if you don't know how to set the mac address. How to change a MAC address

9

Oh, I see your original was Hex (RB750Gr3). I will edit the previous reply.

10

That's probably not the cause, since the internet provider is a local ISP and has nothing to do with Magenta TV. What I did last was swap out the router for a RB760iGS model, v7.20.8, and it now works fine — Magenta TV switches channels within a second. I hope this helps someone who's struggling with the same issue like I was, because I spent two days of my life on this. Thanks to everyone for your advice. Have a nice day.