andrewmoore
Member
Hi All,
I moved to a new ISP, Zen Internet, from Virgin Media yesterday and ever since I can no longer access any Proton services, including Mail and Calendar. This applies to all devices on my network.
Attempting to navigate to https://mail.proton.me in a web browser just times out eventually. Screenshot of Chrome (all browsers are the same). The same applies to all Proton owned domains, such as https://protonmail.com.
DNS (1.1.1.1) appears to be working fine:
Traceroute:
curl fails:
If I switch to alternate routing on the iOS app, use 4G or connect using a VPN, the problem goes away.
No other websites have this issue.
Anyone else on Zen who can share some insight? They are a well regarded ISP and I can't believe they would block Proton, so I'm wondering if the issue lies elsewhere.
Thanks in advance!
I moved to a new ISP, Zen Internet, from Virgin Media yesterday and ever since I can no longer access any Proton services, including Mail and Calendar. This applies to all devices on my network.
Attempting to navigate to https://mail.proton.me in a web browser just times out eventually. Screenshot of Chrome (all browsers are the same). The same applies to all Proton owned domains, such as https://protonmail.com.
DNS (1.1.1.1) appears to be working fine:
$ host mail.proton.me
mail.proton.me has address 185.70.42.37
mail.proton.me mail is handled by 20 mailsec.protonmail.ch.
mail.proton.me mail is handled by 10 mail.protonmail.ch.
Traceroute:
$ traceroute mail.proton.me
traceroute to mail.proton.me (185.70.42.37), 64 hops max, 52 byte packets
1 172.16.1.1 (172.16.1.1) 0.765 ms 0.524 ms 0.386 ms
2 lo0-0.bng2.ixn-lon.zen.net.uk (51.148.77.129) 6.772 ms 11.199 ms 10.711 ms
3 lag-4.p1.ixn-lon.zen.net.uk (51.148.73.89) 4.451 ms 3.906 ms
lag-5.p2.ixn-lon.zen.net.uk (51.148.73.91) 4.471 ms
4 lag-2.br1.ixn-lon.zen.net.uk (51.148.73.195) 4.190 ms
lag-1.br1.ixn-lon.zen.net.uk (51.148.73.181) 3.798 ms 4.238 ms
5 lag51.fr5.lcy1.llnw.net (87.248.216.236) 4.619 ms 4.273 ms 4.591 ms
6 siteprotect.security.neustar (68.142.82.33) 4.403 ms 5.213 ms 4.744 ms
7 * * *
8 gre01.lcy.siteprotect.security.neustar (156.154.218.0) 4.626 ms 3.599 ms 4.609 ms
9 156.154.165.61 (156.154.165.61) 21.334 ms 22.204 ms
156.154.253.101 (156.154.253.101) 22.669 ms
10 * * *
11 185-70-42-37.protonmail.ch (185.70.42.37) 22.440 ms 22.325 ms 21.090 ms
curl fails:
$ curl -I https://mail.proton.me:443
curl: (35) error:02FFF036:system library:func(4095):Connection reset by peer
If I switch to alternate routing on the iOS app, use 4G or connect using a VPN, the problem goes away.
No other websites have this issue.
Anyone else on Zen who can share some insight? They are a well regarded ISP and I can't believe they would block Proton, so I'm wondering if the issue lies elsewhere.
Thanks in advance!























