# Swarm connectivity failure **URL:** \ **Category:** Help\ **Tags:** go-ipfs, swarm\ **Created:** [September 13, 2022, 10:40am UTC](https://discuss.ipfs.tech/t/swarm-connectivity-failure/15178 "2022-09-13T10:40:26Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![susarlanikhilesh](https://sea2.discourse-cdn.com/flex020/user_avatar/discuss.ipfs.tech/susarlanikhilesh/32/4112_2.png) [@susarlanikhilesh](https://discuss.ipfs.tech/u/susarlanikhilesh)\ **Post date:** [September 13, 2022, 10:40am UTC](https://discuss.ipfs.tech/t/swarm-connectivity-failure/15178/1 "2022-09-13T10:40:27Z")
I am using [GitHub - libp2p/go-libp2p-relay-daemon: A standalone libp2p circuit relay daemon providing relay service for version v2 of the protocol.](https://github.com/libp2p/go-libp2p-relay-daemon) on one of my node using V1 circuit. The other nodes are able to connect fine through the relay node, but after a while they fail to connect and start throwing the below error. > _/ip4/ **.** _. **.** _/tcp/4002/p2p/12D3KooWNyfErMvXCm4PNWurKDPLM9Ua5EbJAv1xSaqBZDqncLy4/p2p-circuit] error opening relay circuit: HOP\_CANT\_SPEAK\_RELAY (270) > [/dnsaddr/dns-addrs-bootstrap.com/p2p/12D3KooWNyfErMvXCm4PNWurKDPLM9Ua5EbJAv1xSaqBZDqncLy4/p2p-circuit] concurrent active dial through the same relay failed with a protocol error > [/ip4/192.168.0.194/tcp/4001] dial tcp4 0.0.0.0:4001-\>192.168.0.194:4001: i/o timeout > [/ip4/ __._ **.** _.__ /tcp/12759] dial tcp4 0.0.0.0:4001-\>__._ **.** _._\*:12759: i/o timeout What can go wrong? Regarding the concurrent dial I couldn’t find any issue out there. Thank you ---
**Author:** ![susarlanikhilesh](https://sea2.discourse-cdn.com/flex020/user_avatar/discuss.ipfs.tech/susarlanikhilesh/32/4112_2.png) [@susarlanikhilesh](https://discuss.ipfs.tech/u/susarlanikhilesh)\ **Post date:** [September 14, 2022, 11:49am UTC](https://discuss.ipfs.tech/t/swarm-connectivity-failure/15178/2 "2022-09-14T11:49:42Z")
Having a dns address would cause any issues when connecting to swarms ? ---
**Author:** ![susarlanikhilesh](https://sea2.discourse-cdn.com/flex020/user_avatar/discuss.ipfs.tech/susarlanikhilesh/32/4112_2.png) [@susarlanikhilesh](https://discuss.ipfs.tech/u/susarlanikhilesh)\ **Post date:** [September 14, 2022, 11:50am UTC](https://discuss.ipfs.tech/t/swarm-connectivity-failure/15178/3 "2022-09-14T11:50:19Z")
@Jorropo any help on this 🙂 Thank you ---
**Author:** ![Shreyash1601](https://sea2.discourse-cdn.com/flex020/user_avatar/discuss.ipfs.tech/shreyash1601/32/6943_2.png) [@Shreyash1601](https://discuss.ipfs.tech/u/Shreyash1601)\ **Post date:** [September 19, 2022, 12:55pm UTC](https://discuss.ipfs.tech/t/swarm-connectivity-failure/15178/4 "2022-09-19T12:55:40Z")
I have created an express server to serve HTTP requests regarding data upload on IPFS or reading data from IPFS. Most of the time I receive the same error “not a valid IP address”. Can you please help