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google.com is on and off and some time not accessible at all

Since I have deployed Sophos XGS 4300, I have been experiencing significant network slowness. Additionally, I have encountered issues accessing Google.com, and occasionally Gmail.com, as they seem to be intermittently unavailable.

any one can help me to resolve this issue? Please

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Vivek Jagad 10 months ago +1 suggested

Hello Jean Pierre HABIMANA , Thank you for reaching out to the community, I recommend you to follow the Sophos Firewall: Best practices .

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0 Vivek Jagad 10 months ago

Hello Jean Pierre HABIMANA ,

Thank you for reaching out to the community, I recommend you to follow the Sophos Firewall: Best practices.

Thanks & Regards,
_______________________________________________________________

Vivek Jagad | Team Lead, Global Support & Services

Log a Support Case | Sophos Service Guide
Best Practices – Support Case

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0 da DAI 9 months ago in reply to Vivek Jagad

Hello, we're using XGS 116, we have the same experience. strangely only google.fr is sometimes blocked, not bing. tried on several web browsers, the same.
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0 rfcat_vk 9 months ago in reply to da DAI

Hi,

please check your DNS settings.

Ian

XG115W - v20.0.2 MR-2 - Home

XG on VM 8 - v20.0.2 MR-2

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0 da DAI 9 months ago in reply to rfcat_vk

Thanks for your reply, to correct what I said in my post, it's google.fr fr.wikipedia sometimes be "blocked". I don't think it's the problem of DNS, as we didn't change any DNS related settings in firewall
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0 rfcat_vk 9 months ago in reply to da DAI

When access fails, are you able to perform a traceroute to the site?

Ian

XG115W - v20.0.2 MR-2 - Home

XG on VM 8 - v20.0.2 MR-2

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0 da DAI 9 months ago in reply to rfcat_vk

Hello, yes I could tracert to google.fr. I believe this problem is linked to "QUIC" problem known by Sophos. the weird part is I didn't select "Block QUIC traffic" in FIrewall setting. anyway, I switched to Microsoft Edge, seems works fine until now (the other browsers all suffer the same problem)
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0 rfcat_vk 9 months ago in reply to da DAI

I had to setup a special firewall rule to allow QUIC for FB access only. FB appears to have implemented the use of QUIC in the last month or so.

Ian

XG115W - v20.0.2 MR-2 - Home

XG on VM 8 - v20.0.2 MR-2

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0 rfcat_vk 9 months ago in reply to da DAI

I had to setup a special firewall rule to allow QUIC for FB access only. FB appears to have implemented the use of QUIC in the last month or so.

Ian

XG115W - v20.0.2 MR-2 - Home

XG on VM 8 - v20.0.2 MR-2

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