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Can't access Slack chat app

I am using Archer C2300 router with Virgin Hub 3.0 in modem mode. I use the Slack chat app for work and this isn't working. I have tried connecting via ethernet directly to the Hub3 in modem mode, and have the same problem. So this doesn't appear to be an issue with the router. Any ideas?

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Re: Can't access Slack chat app

Log onto your VM account and look in the "My apps" section and see if "childsafe" is on. If so switch it off - it often blocks chat sites, gambling sites, etc.

--------------------
John
--------------------

My services: HD TV on VIP (+ Sky Sports & Movies & BT sport), x3 V6 boxes (1 wired 2 WiFi,) SH2 in modem mode with Airport Extreme Router. On VIVID200, Talk Anytime Phone, x2 Mobile SIM only iPhones.
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Re: Can't access Slack chat app

I'm having a similar problem with my Archer MR600 router connected to a Virgin 3 hub in modem mode.

My Android Slack app cannot send messages, only receive. Slack support tell me that my ISP (Virgin) is blocking 3.10.95.11 for slack[dot]com and 35.176.156.206 for edgeapi[dot]slack[dot]com

Switching off Child Safe does NOT fix this.

 

 

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Alessandro Volta
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Re: Can't access Slack chat app

Can you ping and run a tracert to the sites?


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Re: Can't access Slack chat app

Hi uswitchnow,

 

Thanks for posting and sorry to hear you're having some issues accessing certain websites. 

 

Can you confirm if you're able to access them with our hub in router mode?

 

Alex_Rm

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Re: Can't access Slack chat app

Sure:

C:\Users\my_user>ping 3.10.95.11

Pinging 3.10.95.11 with 32 bytes of data:
Request timed out.

Ping statistics for 3.10.95.11:
    Packets: Sent = 1, Received = 0, Lost = 1 (100% loss),
Control-C
^C
C:\Users\my_user>ping 35.176.156.206

Pinging 35.176.156.206 with 32 bytes of data:
Request timed out.

Ping statistics for 35.176.156.206:
    Packets: Sent = 1, Received = 0, Lost = 1 (100% loss),
Control-C

C:\Users\my_user>tracert 3.10.95.11

Tracing route to ec2-3-10-95-11.eu-west-2.compute.amazonaws.com [3.10.95.11]
over a maximum of 30 hops:

  1     2 ms     1 ms     2 ms  192.168.1.1
  2     *        *        *     Request timed out.
  3    16 ms    16 ms    14 ms  nrth-core-2a-xe-825-0.network.virginmedia.net [62.253.128.105]
  4     *        *        *     Request timed out.
  5    24 ms    16 ms    15 ms  brhm-ic-3-ae0-0.network.virginmedia.net [62.253.174.126]
  6    31 ms    25 ms    21 ms  99.83.64.24
  7     *        *        *     Request timed out.
  8     *        *        *     Request timed out.
  9     *        *        *     Request timed out.
 10     *        *        *     Request timed out.
 11  ^C

C:\Users\my_user>tracert 35.176.156.206

Tracing route to ec2-35-176-156-206.eu-west-2.compute.amazonaws.com [35.176.156.206]
over a maximum of 30 hops:

  1     4 ms     2 ms     3 ms  192.168.1.1
  2     *        *        *     Request timed out.
  3    14 ms    15 ms    17 ms  nrth-core-2a-xe-825-0.network.virginmedia.net [62.253.128.105]
  4     *        *        *     Request timed out.
  5    17 ms    17 ms    16 ms  brhm-ic-3-ae0-0.network.virginmedia.net [62.253.174.126]
  6    22 ms    20 ms    18 ms  99.83.64.24
  7     *        *        *     Request timed out.
  8     *        *        *     Request timed out.
  9     *        *        *     Request timed out.
 10     *        *        *     Request timed out.
 11  ^C
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Re: Can't access Slack chat app

Hi uswitchnow,

Thanks for using the forums to get this issue looked into, I am sorry about this perplexing problem. 

Can I ask when you try to go onto the website/app, does it come up with a pop-up that states something like "don't think this should be blocked? Fill in this form"? If so please use the form.

Thanks,

Megan_L

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Re: Can't access Slack chat app

No, Slack (the Android messaging app I use for work) just times out when I try to send a message. It receives messages fine. Slack technical support have already diagnosed the problem as ISP-blocked IP addresses above.

Thanks
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Re: Can't access Slack chat app

Does it work if you change your DNS?


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Re: Can't access Slack chat app

Changing DNS settings in my Archer router (to 8.8.4.4 and 8.8.8.8) didn't appear to help - I switched them back.

Note: the problem does go away if I switch on a VPN on my phone.
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